BIOLOGY 101 TIDEWATER CC -W/ACCESS >IC
3rd Edition
ISBN: 9781259332319
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 5, Problem 7MCQ
Summary Introduction
Introduction:
Photorespiration is also referred as oxidative photosynthetic carbon cycle. It is a
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Photorespiration becomes more likely when a. CO2 concentrations are high in leaf cells. b. stomata remain closed in C3 plants. c. glucose concentrations are low in leaf cells. d. ATP binds to rubisco.
Why do land plants have stomates (sometimes called stomata)?
a. To allow plants to take in carbon dioxide from the atmosphere.
b. All of the choices are true; none are false.
c. To control water loss while allowing for the uptake of some raw materials of photosynthesis.
d. They allow the plant to have some control over transpiration rates.
Why do desert plants that live in very hot and dry conditions have stomata? a. To allow for transpiration b. To allow for gas exchange c. To allow for the release of excess heat d. Both a and b are correct.
Chapter 5 Solutions
BIOLOGY 101 TIDEWATER CC -W/ACCESS >IC
Ch. 5.1 - What is photosynthesis? Describe the reactants and...Ch. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - How did the origin of photosynthesis alter Earths...Ch. 5.2 - Prob. 1MCCh. 5.2 - Prob. 2MCCh. 5.2 - Prob. 3MCCh. 5.2 - How does the reaction center chlorophyll interact...Ch. 5.3 - Prob. 1MC
Ch. 5.3 - Prob. 2MCCh. 5.4 - Prob. 1MCCh. 5.4 - Prob. 2MCCh. 5.4 - Prob. 3MCCh. 5.4 - Prob. 4MCCh. 5.5 - Prob. 1MCCh. 5.5 - Prob. 2MCCh. 5.5 - What is the relationship between the light...Ch. 5.5 - Prob. 4MCCh. 5.6 - Why is the Calvin cycle also called the C3...Ch. 5.6 - Prob. 2MCCh. 5.6 - What conditions maximize photorespiration?Ch. 5.6 - Prob. 4MCCh. 5.6 - How is the CAM pathway similar to C4 metabolism,...Ch. 5.7 - Prob. 1MCCh. 5.7 - Prob. 2MCCh. 5 - Where does the energy come from to drive...Ch. 5 - Prob. 2MCQCh. 5 - The evolution of photosynthesis resulted in a. an...Ch. 5 - Prob. 4MCQCh. 5 - Prob. 5MCQCh. 5 - 6. The light reactions and the carbon reactions...Ch. 5 - Prob. 7MCQCh. 5 - A plant that opens its stomata only at night is a...Ch. 5 - Imagine that multiple simultaneous volcanic...Ch. 5 - Prob. 2WIOCh. 5 - Prob. 3WIOCh. 5 - Would a plant grow belier in a room painted blue...Ch. 5 - Prob. 5WIOCh. 5 - Of the many groups of photosynthetic bacteria,...Ch. 5 - Prob. 7WIOCh. 5 - Prob. 8WIOCh. 5 - Over the past decades, the CO2 concentration in...Ch. 5 - How does photosynthesis help compensate for...Ch. 5 - How is the CAM pathway adaptive in a desert...Ch. 5 - Explain how C4 photosynthesis is based on a...Ch. 5 - Explain why each of the following misconceptions...Ch. 5 - Prob. 1PITCh. 5 - 2. How would you incorporate the Calvin cycle,...Ch. 5 - Prob. 3PITCh. 5 - Prob. 4PITCh. 5 - Prob. 5PIT
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- There is a trade-off between photosynthesis and transpiration in leaves because (a) numerous stomatal pores provide both gas exchange for photosynthesis and openings through which water vapor escapes (b) a waxy layer, the cuticle, reduces water loss (c) blue light triggers an influx of potassium ions (K+) into the guard cells (d) leaves of deciduous plants abscise as winter approaches in temperate climates (e) stomata are closed at night, although water continues to move into the roots by osmosisarrow_forwardWhat is the BEST explanation for why thylakoid membranes are flat and stacked? A. to fit more into a chloroplast B. to increase surface area for light absorption and cross- membrane traffic C. to increase the color of the leaf as camouflage from herbivores D. to hold more ATParrow_forwardPhotosynthesis ceases when leaves wilt, mainly because(A) the chlorophyll in wilting leaves is degraded.(B) accumulation of CO2 in the leaf inhibits enzymes.(C) stomata close, preventing CO2 from entering the leaf.(D) photolysis, the water-splitting step of photosynthesis,cannot occur when there is a water deficiency.arrow_forward
- To which of the two lighting conditions would you expose seedlings if you wanted to maximize the rate of photosynthesis in the plants as well as minimizing your costs for electricity to light the plants in the greenhouse? A. Low light only. B. Moderate light only. C. Low light for the first 12 hours and then moderate light afterwards. D. Moderate light for the first 12 hours and then low light afterwards.arrow_forwardPriestley's experiments provide solid evidence that shows that plants give off oxygen. Combining with the evidence you have received from lesson 1, please fill in the blanks. Plants take in........from the atmosphere and release ........into the atmosphere.arrow_forwardWhich of the following is the major site of photosynthesis? a. apical meristem b. ground tissue c. xylem cells d. phloem cellsarrow_forward
- Which 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_forwardWhich of the following would tend to increase transpiration?(A) spiny leaves(B) sunken stomata(C) a thicker cuticle(D) higher stomatal densityarrow_forwardIf plants need CO2 to construct glucose (by photosynthesis), why is the rising level of CO2 in the atmosphere cause for concern? You’d think more CO2 would accelerate plant growth, and that would be a good thing.arrow_forward
- If a plant could not make glucose via photosynthesis, where would the defect show up? A. thicker cell walls B. less starch C. more growth D. less chlorophyllarrow_forwardMany scientists are concerned because CO2 levels in the atmosphere appear to be increasing. If this happens, how do you think plants and the atmosphere will affect each other? Make sure you include both respiration and photosynthesis in your answer.arrow_forwardWhat is the function of xylem vessels? A. composed of dead lignified cells connected end to end B. allows the transport of water and minerals in the upward direction C. carries the products of photosynthesis in a bidirectional movement D. composed of sieve tubes that are closely associated with companion cells to facilitate movement of materialsarrow_forward
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