Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 37, Problem 6TY
Summary Introduction
Introduction: An organism’s response to an external or an internal stimulus is known as its behavior. Plant movement is one of the examples of plant behaviour. The plants respond to light, gravity, and sometimes touch. The phenomenon of a plant growing in the direction of light is known as phototropism. Plant cells detect light with the help of photoreceptors.
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Phytochrome is a plant pigment protein that: a. mediates plant infection b. promotes plant growth c. mediates morphological changes in response to red and far-red light d. inhibits plant growth
What will likely happen to your plant if it will be placed in a dark area with no light?
A.The plant will not be able to absorb sunlight
B.No chlorophyll will be formed and the leaves will become whitish or pale yellow
C.Plants will evolve to adapt in an environment with no light
D.BothA and B
E. BothA and C
Which of the following is false about the phytochrome protein?a. There are two convertible forms.b. It primarly absorbes blue wavelengths of light.c. It is involved in seed germination.d. It is involved in plant sensing of spacing.
Chapter 37 Solutions
Biology
Ch. 37.1 - Prob. 1CSCh. 37.2 - Prob. 1CCCh. 37.2 - Prob. 1EQCh. 37.2 - Prob. 2EQCh. 37.2 - Prob. 2CCCh. 37.2 - Prob. 3CCCh. 37.3 - Prob. 1CCCh. 37.3 - What would happen if you gave flowering plants a...Ch. 37.3 - Prob. 3CCCh. 37.3 - Prob. 4CC
Ch. 37 - Prob. 1TYCh. 37 - Prob. 2TYCh. 37 - Prob. 3TYCh. 37 - Prob. 4TYCh. 37 - Prob. 5TYCh. 37 - Prob. 6TYCh. 37 - Thigmotropism is a plant response to a. light. b....Ch. 37 - Which response is an adaptation to flooding? a....Ch. 37 - Prob. 9TYCh. 37 - Prob. 10TYCh. 37 - Prob. 1CQCh. 37 - Why do plants produce so many types of resistance...Ch. 37 - Prob. 3CQCh. 37 - Prob. 1COQCh. 37 - Prob. 2COQ
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- A plant lacking the WOODEN LEG gene will likely a. be incapable of transporting water to its leaves. b. lack xylem and phloem. c. be incapable of transporting photosynthate. d. All of the choices are correct.arrow_forwardWhich of the following is the role of iron in plants? A. endosperm development and dehydrogenase activity B. photodestruction of chlorophyll and chloroplast structure C. energy transferring process for photosynthesis and respiration D. regulatory component of proteins and metabolites in roots and leavesarrow_forwardWhich cells are responsible for the movement of photosynthates through a plant? a. tracheids, vessel elements b. tracheids, companion cells c. vessel elements, companion cells d. sieve-tube elements, companion cellsarrow_forward
- Stomata (a) help prevent desiccation of plant tissues (b) transport water and minerals through plant tissues (c) allow gas exchange for photosynthesis (d) strengthen cell walls (e) produce male gametesarrow_forwardRoot cells exhibit positive gravitropism with the help ofa. auxin in the root cells.b. amyloplasts in root cells.c. exposure to sunlight.d. a nearby substrate.arrow_forwardThe main photoreceptor that triggers phototropism is a ________. a. phytochrome b. cryptochrome c. phototropin d. carotenoidarrow_forward
- Stems and roots, respectively, exhibit a. a positive phototropic response and no phototropic response. b. a negative phototropic response and no phototropic response. c. no phototropic response and a positive phototropic response. d. no phototropic response and a negative phototropic response.arrow_forwardPlant development is influenced by: A. quality of light only B. quality and quantity of light C. quality and duration of light D. quality, quantity and duration of lightarrow_forwardKnowledge of photoperiodism can be helpful for (a) Laying out orchards in a particular area (b) Flower growers to regulate flowering as per demand (c) Farmers to shorten the period between germination and flowering a.a only b.b only c.a and b d.a and carrow_forward
- Arabidopsis plants that have mutant AtSUC2 alleles accumulate sugar and starch in their mature leaves. What process might these plants be unable to carry out?. a. Abscission b. Phloem loading c. Guttation d.Photosynthesis.arrow_forwardWhich of the following statements is/are FALSE for CAM plants? a.The dark reaction uses less ATP and NADPH than other plants. b.Succulents and tropical plants growing under semi-arid condition. c.C4 pathway occurs at night and C3 pathway occurs at daytime. d.Scotoactive stomata are open during daytime but close at nighttime.arrow_forwardPhytochromea. can be affected by red and far-red wavelengths of light.b. affects a plant’s photoperiod.c. helps plants sense proximity to neighboring plants.d. All of these are correct.arrow_forward
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