超星植物生理学（全英文）课后答案(学习通2023课后作业答案)

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Plant Cells

TEST 1

1、超星Which of the following tissue system is 植物NOT one of the three major tissue systems in plants?
A、Meristem tissue
B、生理Ground tissue
C、学全学习Dermal tissue
D、英文业答Vascular tissue

2、课后Which of the following types of ground tissue has the THICKEST cell walls?答案
A、Parenchyma
B、通课Collenchyma
C、后作Sclerenchyma
D、超星None

3、植物Lateral roots arise from ( )?生理
A、Pericycle
B、学全学习Vascular cambium
C、英文业答Endodermis
D、课后Epidermis

4、Which of the following statements about plant structure is CORRECT?
A、Root hair is made of dermal tissues.
B、Secondary cell walls are deposited outside of primary cell walls.
C、Pericycle in roots is equivalent to vascular cambium in stems.
D、None.

5、Place the following steps of DNA packaging in proper order: I. Chromatin fiber II. Condensed chromatin III. DNA double helix IV. Looped domains V. Nucleosomes
A、III, V, I, IV, II.
B、III, V, IV, I, II.
C、III, I, V, IV, II.
D、I, III, V, IV, II

6、Which of the following statements about plant structure is correct?
A、Lateral roots arise from epidermis.
B、Secondary cell walls are deposited outside of primary cell walls.
C、The pith in stems is made of vascular tissues.
D、Root hair is made of dermal tissues.

7、Which of the following statements about plant classification is WRONG?
A、Chloroplasts in plants and green algae contain chlorophyll a and b and β-carotene.
B、Plants share the evolutionarily derived traits for surviving on land that are absent in algae.
C、Mosses, hornworts, liverworts, and ferns are nonvascular plants.
D、Magnolia and its relatives, monocots, and eudicots are flowering plants (i.e., angiosperms).

8、Which of the following statements about plastids is CORRECT?
A、The chloroplast is one type of chromoplasts because it contains a high concentration of chlorophyll pigment.
B、Chloroplast division is independent of nuclear division; therefore, the chloroplast does not require nuclear-encoded proteins to divide.
C、Both chloroplasts and amyloplasts can accumulate starch.
D、None.

9、Which of the following processes does NOT take place in the nucleus?
A、Transcription
B、Ribosome synthesis
C、Translation
D、DNA replication

10、Which of the following statements about plant organelles is CORRECT?
A、The recycling of membrane vesicles - from the plasma membrane to the Golgi, from the trans to the cis face of the Golgi, or from the Golgi to the ER - is called anterograde movement through the endomembrane system.
B、Glyoxysomes are specialized peroxisomes found in oil-rich storage tissues of seeds in which fatty acids are oxidized.
C、Microfilaments have a bigger diameter than microtubules.
D、The minus ends of microtubules or microfilaments tend to be more active in growth than the plus ends.

Genome Organization and Gene Expression

TEST 2

1、Which of the following statements about nuclear genome organization is CORRECT?
A、Nucleolar organizer regions are portions of chromosomes where ribosomal RNA genes are clustered and transcribed.
B、Centromeres are sequences located at the ends of each chromosome.
C、Telomeres are where sister chromatids adhere to each other and where spindle fibers attach during cell division.
D、Chromosome organization is random in the interphase nucleus.

2、Which of the following statements about transposons is CORRECT?
A、Transposons are mobile sequences within the genome.
B、DNA transposons make an RNA copy of themselves, which is then reversetranscribed into DNA before it is inserted in the genome.
C、Retrotransposons move from one position to another using a cut-and-paste mechanism catalyzed by transposase.
D、None.

3、Which of the following statements about polyploids is CORRECT?
A、If polyploidy is restricted to somatic tissues, the terminology used to describe this state is endopolyploidy.
B、Allopolyploids contain multiple complete genomes of a single species.
C、Autopolyploids contain multiple complete genomes derived from two or more separate species.
D、Autopolyploids are always larger than their diploid progenitors.

4、Which of the following statements about plant cytoplasmic genomes is WRONG?
A、The origin of mitochondria is considered as an oxygen-using bacterium engulfed by another prokaryotic organism.
B、The origin of chloroplasts is considered as a photosynthetic cyanobacterium engulfed by a eukaryotic cell.
C、Mitochondrial inheritance is usually paternal in the majority of the plants.
D、Both mitochondria and plastids generally show uni-parent inheritance.

5、Which of the following statements about features of a typical eukaryotic core promoter is CORRECT?
A、Enhancers must be located upstream from the promoter.
B、Repressors are trans-acting transcription factors that repress gene expression.
C、Activators are cis-acting transcription factors that activate gene expression.
D、None.

6、Which of the following is NOT considered as a source of double-stranded RNAs in plant cells?
A、The presence of microRNAs (miRNAs), which are involved in normal developmental processes.
B、The production of short interfering RNAs (siRNAs), which silence certain genes.
C、The introduction of foreign RNAs, either by viral infection or via transformation by a foreign gene.
D、DNA replication.

7、Which of the following statements about protein degradation process is WRONG?
A、In chloroplasts, protein turnover involves ubiquitination and 26S proteasome.
B、Ubiquitination is initiated by ATP-dependent adenylylation of ubiquitin. This step is catalyzed by ubiquitin-activating enzyme E1.
C、After adenylylation, ubiquitin is transferred to ubiquitin-conjugating enzyme E2.
D、Ubiquitin ligase E3 transfers ubiquitin to a target protein, which may be polyubiquitinated.
E、The polyubiquitinated protein is then targeted to the 26S proteasome for degradation.

8、Which of the following is NOT a type of epigenetic modification?
A、DNA methylation
B、Histone methylation
C、Histone acetylation
D、Ubiquitination

Water and Plant Cells

TEST 3

1、Which of following statements about water loss and usage by plants is CORRECT?
A、The uptake of CO2 is coupled to the loss of water through a common diffusional pathway.
B、In the case of cacti, water is lost preferentially from outer layer during drought.
C、A small amount of the water absorbed by roots is lost by transpiration from the leaf surfaces.
D、The majority of the water absorbed by roots either remains in the plant to supple growth, or it is consumed in the biochemical reactions.

2、Which of the following is NOT a property of water that makes water an excellent solvent?
A、Water molecules are of small size.
B、Water molecules can form hydrogen bonds.
C、Water molecules are nonpolar.
D、None

3、Which of the following statements about the structure and properties of water is WRONG?
A、Water has high specific heat capacity.
B、Water has high latent heat of vaporization.
C、Water molecules are highly cohesive.
D、Water has a low tensile strength.

4、Which of the following statements about the surface tension of water is WRONG?
A、Compared to other liquids at the same temperature, water has an extremely high surface tension.
B、If the air-water interface is curved, surface tension produces a net force perpendicular to the interface.
C、“Wettable” surfaces have contact angles of greater than 90°; “nonwettable” surfaces have contact angles of less than 90°
D、None

5、Which of the following statements about the structure and properties of water is WRONG?
A、Cohesion is the mutual attraction between water molecules due to extensive hydrogen bonding.
B、Adhesion is the attraction of water to a solid phase such as a cell wall or glass surface, primarily due to the formation of hydrogen bonds.
C、Gravity gives rise to capillarity.
D、None.

6、Which of the following statements is CORRECT?
A、Plant cells typically have a positive water potential.
B、Diffusion is most effective over long distances.
C、A plant wilts when the turgor pressure inside the cells of such tissues falls toward zero.
D、None.

7、Which of the following statements about aquaporins is CORRECT?
A、Aquaporins may alter (i.e., increase) the rate of water movement across the membrane.
B、Aquaporins are pumps, not channels.
C、Aquaporins may carry out active transport of water across the membrane.
D、None.

8、Which of the following physiological processes is most sensitive to water deficits?
A、Photosynthesis
B、Phloem transport
C、Protein synthesis
D、Cell expansion

Water Balance of Plants

TEST 4

1、Which of the following is NOT considered as a major driving force for water flow from the soil through the plant to the atmosphere?
A、Difference in water vapor concentration between leaf and air, responsible for the diffusion of water vapor from the leaf to the air.
B、Difference in hydrostatic pressure, responsible for the bulk flow of water through xylem.
C、Difference in water potential, responsible for the movement of water across the living cells in the roots.
D、Elevation of the plant.

2、Which of the following statements about water absorption by roots is CORRECT?
A、In the symplastic pathway, water moves through cell walls and extracellular spaces without crossing any membranes as it travels across the root cortex.
B、In the apoplastic pathway, water travels across the root cortex via the plasmodesmata.
C、In the transmembrane pathway, water crosses the plasma membrane of each cell in its path twice (once on entering and once on exiting).
D、None.

3、Where is the Casparian strip located?
A、Endodermis
B、Pericycle
C、Cortex
D、Epidermis

4、Pressure-driven bulk flow is NOT responsible for:
A、Most of the water flow through the soil.
B、Most of the water flow through the cell wall of plant tissues.
C、Diffusion through living cells.
D、Long distance transport of water in the xylem.

5、Which of the following statements about water transport through the xylem is WRONG?
A、Tracheids have perforation plates.
B、Vessel elements tend to be shorter and wider than tracheids.
C、In conifers, lodged torus prevents gas bubbles from spreading into neighboring tracheids.
D、Vessel elements are found in most angiosperms, and are lacking in most gymnosperms.

6、Which of the following conditions will cause stomata opening?
A、At night, when there is no photosynthesis.
B、Sunny morning, but the plant is dehydrated.
C、Sunny morning, when the supply of water is abundant.
D、None.

7、Which of the following statements about the hydraulic resistance of leaf is WRONG?
A、Leaves with closely spaced veins tend to have lower hydraulic resistance.
B、Older leaves and leaves in shade tend to have higher hydraulic resistance.
C、In general, the upper epidermis of a leaf has more stomata.
D、None.

8、Which of the following statements about guard cells is WRONG?
A、In grasses, guard cells have a characteristic dumbbell shape, with bulbous ends.
B、In dicots and nongrass monocots, guard cells are kidney-shaped.
C、A decrease in guard cell turgor pressure opens the stomata.
D、None.

9、The best light for stomatal opening is
A、Red
B、Yellow
C、Green
D、Blue

10、During high wind velocity, the stomata of plants
A、Remain open
B、Close down
C、Open more widely
D、Remain unaffected

11、The most important factor in stomatal opening in the plant is
A、Protein percentage of sap
B、Shape of guard cells
C、Hormone content of cell
D、Chlorophyll content in cell

12、In plant ______ is responsible for guttation
A、Root pressure
B、Photosynthesis
C、Transpiration
D、Osmosis

Mineral Nutrition

TEST 5

1、Which of the following is the key property of group 4 plant mineral nutrients?
A、They are involved in redox reactions.
B、They are important in energy storage or structural integrity.
C、They remain in ionic form.
D、None.

2、Which of the following growth system requires high levels of nutrients to sustain rapid plant growth and is NOT a widely used technique?
A、Aeroponic growth system
B、Hydroponic growth system
C、Nutrient film growth system
D、None

3、Which of the following statements about modified Hoagland solution is WRONG?
A、Nitrogen supplements as both ammonium and nitrate is beneficial to the plants because it promotes cation-anion balances within the plant.
B、A chelating agent is added to maintain the availability of iron to the plants.
C、The concentrations of mineral elements in the solution are much lower than those found in the soil around plant roots.
D、None.

4、The most abundant element amongst the following as found in plants is
A、Carbon
B、Nitrogen
C、Iron
D、Manganese

5、Magnesium is an important component of
A、Enzymes
B、Florigen
C、Chlorophyll
D、Hemoglobin

6、Absorption of water and minerals take place in which part of root?
A、Root cap tip
B、Root hairs
C、Root epidermis
D、Root endodermis

7、Which element is essential for activating the enzyme but not a part of enzyme?
A、Mn
B、Mg
C、K
D、Co

Solute Transport

TEST 6

1、Passive absorption of minerals depends upon
A、temperature
B、humidity
C、metabolic inhibitor
D、temperature and metabolic inhibitor

2、Manganese is required for
A、chlorophyll syntheisis
B、nucleic acid synthesis
C、plant cell formation
D、Photolysis of water during photosynthesis

3、In which method ions are absorbed by plants
A、By carriers and pumps
B、By carriers method
C、By difference in DPD
D、By molecular diffusion

4、Which of the following is not performed by root hairs?
A、Water uptake
B、Oxygen uptake
C、Mineral uptake
D、CO2

5、Bidirectional translocation of minerals takes place in
A、Xylem
B、Phloem
C、Parenchyma
D、Cambium

6、The cell membrane contains channels and pumps that help move materials from one side to the other. What are these channels and pumps made of?
A、carbohydrates
B、lipids
C、bilipids
D、proteins

7、Which of the following is an example of primary active transport?
A、
B、
C、
D、

8、The principal intracellular cation is
A、Na+
B、Ca+
C、K+
D、Cl-

9、The sodium pump:
A、exchanges extracellular Na+ from intracellular K+
B、is an ion channel
C、is important for maintaining a constant cell volume
D、can only be inhibited by metabolic poisons

10、Which of the following transport induces conformational change in protein?
A、Simple diffusion
B、Active transport
C、Facilitated diffusion
D、Ion driven active transport

11、Na+ glucose transporter is an example of
A、facilitated diffusion
B、ATP driven active transport
C、symport
D、antiport

Light and Photosynthesis

TEST 7

1、Photosynthetically active radiation wavelength ranging from
A、340 nm - 450 nm
B、200 nm - 300 nm
C、400 nm - 700 nm
D、640 nm - 650 nm

2、Which is immediate electron donor to PSI?
A、Plastocyanin
B、Plastometheonin
C、Ferredoxinin
D、Both B and C

3、Absorption of light take place during photosynthesis
A、Photosystem-I only
B、Photosystem-II only
C、Photosystem-I and Photosystem-II
D、None of the above

4、Hill reaction take place in Granna formed
A、ATP and NADPH2 both
B、NADPH2
C、ADP
D、All of the above

5、Photosynthesis is most active and fast in
A、Blue light
B、White light
C、Red light
D、UV light

6、Photosynthetic yield will be maximum in
A、Yellow light
B、Intermittent white light
C、Continuous blue light
D、Red light

7、Cytochromes help in plant growth, which is reacts with O2 in electron transport system
A、Cyt. a3
B、Cyt. b3
C、Cyt. c3
D、Cytf

8、In photosynthesis oxygen is considered as?
A、Main product.
B、By product.
C、Waste product.
D、None of the above.

9、Hill reaction take place in
A、Grana.
B、Grana of chloroplast.
C、Stroma.
D、None of the above.

10、Which element is located at the centre of the porphyrin ring in chlorophyll?
A、Calcium
B、Magnesium
C、Potassium
D、Manganese

Photosynthesis - The Carbon Reactions

TEST 8

1、Acid concentration in CAM plants is more of
A、Night
B、Down
C、Dunk
D、Daytime

2、The characteristics of C4 plants is
A、First product oxaloacetic acid
B、Carboxylating enzymes are PEPco and Rubisco
C、Krans anatomy
D、All of these

3、Stomata open at night but close during day time in which plants?
A、Xerophytes
B、Mesophytes
C、Succulents
D、Both A and B

4、In C4 pathway,
A、O2 combine with PGA
B、CO2 combine with PEP
C、CO2 combine with RMP
D、All of the above

5、Dark reaction of photosynthesis occurs in
A、Stomata
B、Stroma and matrix
C、Stroma
D、Granna

6、In C4 plants first CO2 acceptor is
A、Oxaloacetic acid
B、Phosphoenol-pyruvate
C、Oxalo butaric acid
D、Pyruvic acid

7、Calvin cycle involves reductive carboxylation occurs in
A、Chloroplast
B、Cytochrom
C、Peroxisome
D、Cytoplasm

8、All the following enzymes are involved in regeneration of RuBP except
A、Phosphoglycerate kinase
B、Transketolase
C、Ribose phosphate isomerase
D、Phosphoribulokinase

9、Which of the following is the correct statement regarding Calvin Cycle?
A、It cannot occur during day time
B、It is light dependent
C、It is light independent
D、It occurs rapidly at night

10、The rate limiting step of Calvin Cycle is catalyzed by
A、RuBisCO
B、Phosphoglycerate kinase
C、Ribose phosphate isomerase
D、Transketolase

Photosynthesis Physiological and Ecological Considerations

TEST 9

1、Which plant is solar tracking plants?
A、Alfalfa
B、Cotton
C、Soybean
D、All of the above

2、What did FACE experiments show?
A、C3 plants are more responsive to elevated [CO2] than are C4 plants.
B、C4 plants are more responsive to elevated [CO2] than are C3 plants.
C、C3 plants are equal responsive to elevated [CO2] than are C4 plants.
D、None of the above

3、Capability of fixing the CO2 lost in respiration is found in .
A、C4 plants
B、C3 plants
C、CAM plants
D、All of the above

4、Maximum solar energy is trapped by .
A、planting trees
B、cultivating crops
C、growing algae in tanks
D、growing grasses

5、In general, a plant most likely to survive in area where temperature is high, relative humidity is low an wind prevalent, would have leaves.
A、large and broad
B、large intercellular air spaces
C、reduced palisade tissue
D、small and narrow

6、Which statement is true about chloroplast movement?
A、Under high light, the chloroplasts move to the cell surfaces that parallel to the incident light.
B、Under low light, the chloroplasts move to the cell surfaces that parallel to the incident light.
C、Under high light, chloroplasts gather at the cell surfaces parallel to the plane of the leaf.
D、None of the above.

7、Which statement is true about leaf anatomy from a legume grown in different light environments?
A、The sun leaf is much thicker than the shade leaf.
B、The shade leaf is much thicker than the sun leaf.
C、The sun leaf is as thick as the shade leaf.
D、None of the above.

8、In sun plants, the light compensation point is usually than it is in shade plants?
A、equal
B、higher
C、lower
D、None of the above

9、In shade plants, the maximal photosynthetic rates are usually than they are in sun plants?
A、equal
B、higher
C、lower
D、None of the above

10、In C3 plants, the CO2 compensation point is usually than it is in C4 plants?
A、equal
B、more
C、less
D、None of the above

Translocation in the Phloem

TEST 10

1、The long-distance transport of photosynthate from one region to another in higher plants is called .
A、xylem translocation
B、phloem translocation
C、apoplast
D、symplast

2、All the following are ‘sink’ except .
A、fruit
B、seed
C、leaves
D、rhizome

3、Which of the following is a ‘source’?
A、Green parts
B、Fruit
C、Tubers
D、Seed

4、The movement of photosynthate through phloem is always .
A、from source to sink
B、from sink to source
C、bi directional
D、none of these

5、The process of transferring sugar formed in mesophyll cells to sieve tubes of phloem is called .
A、photosynthate transfer
B、source-sink transfer
C、phloem loading
D、phloem unloading

6、Phloem unloading occurs .
A、from low concentration to high concentration
B、with concentration gradient
C、against concentration gradient
D、remains same

7、Phloem loading is the transfer of sugar from .
A、source to sink
B、leaves to sieve tubes
C、fruits to seed
D、all of the above

8、All the following statements are false regarding phloem loading except .
A、Phloem loading is from phloem cells to leaves
B、Phloem loading occurs in concentration gradient
C、Phloem loading is an active process
D、Phloem loading is from sink to source

9、The process of transferring sugar from sieve tubes to sink is called .
A、photosynthate transfer
B、source sink transfer
C、phloem loading
D、phloem unloading

10、According to Mass flow hypothesis, mass flow of solute from source to sink is due to .
A、concentration gradient
B、tugor pressure gratient
C、osmosis
D、osmosis and diffusion

Assimilation of Mineral Nutrients

TEST 11

1、Nitrate reductase system in which element is major component?
A、Mo
B、N
C、H
D、None of the above

2、In leguminous plants leghemoglobin protects _____ activity.
A、Nitrogenase
B、Protiase
C、Nitrate reductase
D、Both A and B

3、In Nitrogen fixation and metabolism which element is play major role?
A、Mn
B、B
C、Mg
D、Mo

4、Main source of elements for nitrate reductase is ferredoxin which is present in ______.
A、Endoplasmic reticulum
B、Mitochondria
C、Chloroplasts
D、Golgi complex

5、Nitrobacter convert NO2 into NO3 in process.
A、Reduction
B、Oxidation
C、Both A and B
D、None of the above

6、The enzyme responsible for atmospheric nitrogen fixation is _____.
A、nitrogenase
B、amylase
C、nitrogenase and amylase
D、lemda nitrogenage

7、Nodule formation of legume roots is reduced during deficiency of _____.
A、S and B
B、N
C、K
D、Cl

8、Nitrification process is done by _____.
A、Rhizobium
B、Pseudomonas
C、B. bassiana
D、Nitrococcus

9、Nitrate reductase system in which element is major component?
A、Mo
B、N
C、H
D、None of the above

10、Absorption of water and minerals take place in which part of root?
A、Root cap tip
B、Root hairs
C、Root epidermis
D、Root endodermis

Growth and Development

TEST 12

1、Mowing grass lawn facilities better maintenance because .
A、wounding stimulates regeneration
B、removal of apical dominance and stimulation of intercalary meristem
C、removal of apical dominance
D、removal of apical dominance and promotion of lateral meristem

2、Auxin inhibits the growth of .
A、apical bud
B、lateral axillary bud
C、Roots on stem cutting
D、Parthenocarpic development of fruits

3、Growth is a .
A、reversible increase in size
B、reversible increase in shape
C、irreversible increase in size
D、none of the above

4、Plant response to environment is mainly through .
A、Induction of dormancy
B、Abscission of parts
C、Synthesis of pigments
D、Growth

5、Which one regulates plant growth?
A、Commensalism
B、Climate
C、Hormones
D、Both B and C

6、Which one is not a growth promoter?
A、ABA
B、GA
C、IAA
D、CTK

7、Optimum growth occurs in .
A、Blue light
B、White light
C、Red light
D、Green light

8、Growth promoters hormones are
A、IAA, ABA and CK
B、IAA, GA and ABA
C、IAA, GA and CK
D、ABA, CK and GA

9、Removal of apical bud makes the plant .
A、Bushy
B、Grow rapidly
C、Grow slowly
D、Dormant

10、Delay in senescence is caused by the spray of .
A、IBA
B、GA
C、Cytokinin
D、ABA

Phytochrome and Light Control of Plant Development

TEST 13

1、Which one increases in the absence of light?
A、uptake of minerals
B、uptake of water
C、elongation of internodes
D、ascent of sap

2、If a plant is kept inside a room with continuous red light exposure, what will be the effect of it on its phytochrome?
A、A balance between destruction and synthesis levels.
B、An increase in synthesis levels.
C、A decrease in synthesis levels.
D、Complete destruction of phytochome.

3、Darkness leads to yellowing even to the healthiest of plants. What is this event called?
A、Chlorosis
B、Phototropism
C、Dormancy
D、Etiolation

4、The compound responsible for red and far-red reversible photoperiodic reaction is .
A、cytokinin
B、phytochrome
C、cytochrome
D、anthocyanin

5、If a brief flash of light is provided during dark period to the plant that required a short day then the plant is likely .
A、to flower
B、not to flower
C、to have no effect
D、produces more flowers

6、In many plants, change over from vegetative phase to reproductive phase takes in response to .
A、the length of the day
B、the severity of temperature
C、mainly the food material available in the soil
D、the oxygen present in the air

7、The pre-sowing low temperature treatment of seeds is known as .
A、scarification
B、electrophoresis
C、vernalizaion
D、abscission

8、The pigment that absorb the red and far-red light in plant is .
A、cytochrome
B、xanthophylls
C、phytochrome
D、caratene

9、The wavelengh absorbed by Pr form of photochrome is .
A、640 nm
B、660 nm
C、720 nm
D、740 nm

10、Which of the following statements is correct?
A、The two forms of the phytochrome are photochemically inconvertible
B、The Pfr form converts to Pr form slowly in darkness
C、The dark conversion of Pfr and Pr form appears to be restricted to the dicotyledons only
D、All of the above

Blue-Light Responses

TEST 14

1、The most effective wavelength in inducing phototrophic moments is .
A、red and far red
B、blue and red
C、blue and violet
D、green and yellow

2、Which one is the wavelength range of blue light?
A、300-400 nm
B、400-500 nm
C、500-600 nm
D、600-700 nm

3、What does blue light do other than photosynthesis?
A、Phototropism
B、Stimulates stomatal opening
C、Chloroplast movements within cells
D、All of the above

4、What does blue light do other than photosynthesis?
A、Phototropism
B、Stimulates stomatal openning
C、Chloroplast movements within cells
D、All of the above

5、House plants placed near a window have branches that grow toward the incoming light. This response is called .
A、phototropism
B、photosynthesis
C、photomorphosis
D、None of the above

6、The ‘three-finger’ pattern in the 400 to 500 nm region is characteristic of specific light responses.
A、blue
B、red
C、far-red
D、None of the above

7、The ‘ -finger’ pattern in the 400 to 500 nm region is characteristic of specific blue light responses.
A、one
B、two
C、three
D、four

8、The ‘three-finger’ pattern in the region is characteristic of specific blue light responses.
A、300 to 400 nm
B、400 to 500 nm
C、500 to 600 nm
D、600 to 700 nm

9、There are types of photoreceptors associcated with blue-light responses.
A、two
B、three
C、four
D、five

10、Zeaxanthin is a photoreceptor in guard cells.
A、blue light
B、red light
C、far-red -light
D、None of the above

Auxin

TEST 15

1、What causes a green plant to bend towards light as it grows?
A、Because green plants need light to carry on photosynthesis
B、Because green plants are phototropic
C、Auxin accumulates on shaded side stimulating greater cell elongation
D、Light stimulate plant cells on the lighted side to grow faster

2、Indole 3-acetic acid is chemically similar to be aminoacid .
A、Proline
B、Methionine
C、Phenylalanine
D、Tryptophan

3、The natural occurring in higher plant is _________.
A、IAA
B、IBA
C、NAA
D、IBA and NAA

4、Polar translocation of plant hormone found in ______.
A、Auxin
B、GA
C、Cytokinin
D、Zeatin

5、Hormone involve in phototropism is _________.
A、IAA
B、GA
C、Kinetin
D、Cytokinin

6、Leaves fall due to .
A、A decrease in Abscisic acid.
B、An increase in Auxin levels.
C、A shortage of Auxin level.
D、An increase in Gibberellin.

7、An infusion of 2,4-Dichlorophenoxyacetic (2,4-D) acid causes in plant bodies.
A、Senescence delay.
B、Increase in the branch sizes, without affecting other parts.
C、Increased growth throughout every part.
D、Bolting

8、Statement 1 - Apical dominance is promoted via auxins by suppression in the growth of lateral buds. Statement 2 - Shoot tips are periodically pruned to make mulberry plants bushier. Which statement is correct?
A、Both statements are correct.
B、Only Statement 1 is correct.
C、Only Statement 2 is correct.
D、Both Statements are wrong.

9、Which plant part is known for its highest concentration of auxins?
A、At the base of plant organs.
B、Xylem and Phloem.
C、Growing tips.
D、Shoots and roots.

10、Coleoptile is the phenomenon due to which stems and shoots of plants bend towards a source of light. This is due to .
A、Availability of the necessary amount of warmth to tips.
B、Greater light availability.
C、More auxin on the shaded side.
D、Greater oxygen availability.

Gibberellin

TEST 16

1、Cell elongation in internodal regions of the green plants takes place due to .
A、Cytokinins
B、Ethylene
C、Gibberellins
D、Indole acetic acid

2、Dwarfness of the plant can be control by _____.
A、IAA
B、ETH
C、GA
D、IBA

3、Gibberellins promote .
A、seed germination
B、seed dormancy
C、leaf fall
D、root elongation

4、A particular plant acid promotes malting in breweries. Which one of them is it?
A、Gibberellic Acid
B、Kinetin
C、Ethylene
D、Auxin

5、Gibberellins was named after a fungus called .
A、Gibberella fujikuroi
B、Gibberella gaditijirrii
C、Gibberella acuminata
D、Gibberella africana

6、Gibberellins are chemically .
A、phenolic derivatives
B、terpenoid derivatives
C、Adenine derivatives
D、Alkaloid derivatives

7、All are functions of gibberellins except .
A、Promote cell elongation
B、Promote dormancy
C、Promote elongation of internodes
D、Promotes parthenocarpic fruit formation

8、Which of the following bioassay is used t

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以下基模的类型是分别包括了（）个正反馈环和（）个负反馈环

A.对于return语句的解释下列错误的选项是（）
B.在奴隶社会、封建社会、资本主义社会,社会发展的直接动力是( )。
C.条件“BETWEEN 20 AND 30”表示年龄在20到30之间,且( )
D.在产品成本计算的方法有（)。

从我国道路规划设计和运营角度，通行能力可分为 。

A.GMP的文件系统包括制度、标准（操作标准、技术标准）和记录三部分
B.下图中的地貌景观形成的地质作用是用形成的
C.“待处理财产损溢”账户的贷方余额表示( )。
D.我国肥胖流行现状的地域差异体现在

牛轭湖相沉积是( )地质作用造成的。

A.以下哪个是右心房的结构：
B.销售顾问的工作就是向客户卖车。
C.受到妥善管理的客户档案作用在于：（ ）
D.一般来说，机械式组织适用于外部环境

AP和STA之间收发的数据属于L3及以上数据（ ）

A.智慧职教: 菌血症出现在
B.理解了他人，会让我们变得更宽容，而宽容也会让我们变得更加理解他人。
C.汽车车身四大制造工艺不包括铸造工艺。
D.如何改变一个元素的左外边距()

在原理图的标题栏中设置信息文字，以下哪项表示“标题”参数：

A.换路前若电容元件没有电压，换路后，电容元件可以用（ ）
B.下列对旅游目的地规划的说法错误的是
C.离心泵铭牌上标明的是泵在（ ）时的主要性能参数。
D.对于有效值，下面说法错误的是（ ）

对于股骨干骨折来说，下列哪些骨折类型适用于持续牵引（复位）+夹板固定（ ）。

A.《盐铁论》称之为论心定罪的司法审判。
B.Q235-B和Q235-C是否容许用于制造压力容器。
C.群落中有几个生活型就有几个层片。
D.冷冻干燥中，水分从冰晶体直接升华成水蒸气。

板式塔的理论板压降约为多少

A.熟三七采用的炮制方法是( )
B.对联的横批，可以说是对联的题目，也是对联的中心。（）
C.CRH5型动车组动力转向架有（）类型。
D.配送中心就是物流集散中心。

手机、视听机、网页设计属于现代传媒设计中的（ ）。

A.在switch语句中，多个case可以共用一组执行语句。（)
B.对梁的( )进行规定，以提高梁的延性。
C.一圆形线圈在均匀磁场中作下列运动时，哪些情况会产生感应电流( )
D.挫折对人的心理健康可能有积极的影响，对吗

糜蛋白酶原主要是在（ ）的作用下转化为有活性的糜蛋白酶。

A.车刀前角增大后的影响是()。
B.请选择你听到词组的正确译文
C.创业精神具有哪几方面特征
D.根据凡勃伦，炫耀性消费要炫耀的不是：

氯丙嗪引起帕金森综合征，合理的处理措施是

A.正当防卫的成立条件可以分为（ ）
B.三羧酸循环的发生场所是（）。
C.西方抽象艺术史从()年开始。
D.胰腺腺泡腔内可见泡心细胞，是闰管起始部上皮细胞。

在上位机上有 功能

A.在杂交实验中，亲代的成员间进行杂交产生的后代称为（ ）。
B.舞蹈《点绛唇》作品属于的舞蹈类型是：
C.影响晶体大小的主要因素与下列哪些因素无关 （ ）
D.不属于多媒体教学的优点的是

5.组织培训的目的包括（）

A.糖有氧氧化时，伴有底物水平磷酸化的反应有（ ）
B.生产绿地按规定,绿地面积应至少占建成区的2%。()
C.大量中华鳋寄生在鳃上时，称（ ）。
D.智慧职教: 在住院处办理完入院手续后，可免去沐浴的患者是

调整喷油泵的联轴节，可以改变喷油泵某一循环的供油时刻。

A.耿宝昌先生总结出明代宣德御窑鲜红釉瓷器圈足外墙上的釉一般略有堆积，俗称（）。
B.现代汽车全车电路图一般有
C.计算机中所有信息的存储都采用（ ）
D.冲泡杭白菊和枸配绿茶的配料茶，冲泡的水温以(　　)为宜。

将一个或多个目标代码文件合成为可执行文件的过程，称为_________。

A.过量服用会导致寒气滞留于体内，加剧湿邪的症状。
B.磷脂酰胆碱是一种中性磷脂。
C.β-氧化的酶促反应顺序为
D.爱森斯坦强调“对立”与“冲突”，提出了（ ）蒙太奇。