Which of the following statements concerning photosynthesis and cellular respiration in plants is TRUE? O Photosynthesis and cellular respiration occur only in the light. O Photosynthesis occurs only in the light, and cellular respiration occurs only in the dark. O Photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and the light. O Photosynthesis and cellular respiration occur in both the dark and the light.

Which of the following statements concerning photosynthesis and cellular respiration in plants is TRUE? O Photosynthesis and cellular respiration occur only in the light. O Photosynthesis occurs only in the light, and cellular respiration occurs only in the dark. O Photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and the light. O Photosynthesis and cellular respiration occur in both the dark and the light.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter8: Photosynthesis

Section: Chapter Questions

Problem 3VCQ: Figure 8.18 Which of the following statements is true? In photosynthesis, oxygen, carbon dioxide,...

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Is the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.
Which of the following substances does not participate in the CalvinBenson cycle? a. ATP b. NADPH c. RuBP d. PGAL e. O2 f. CO2
Match each term with its most suitable description. ____ PGAL formation a. absorbs light ____CO2 fixation b. converts light to chemical energy ____ autotroph c. self-feeder ____ ATP forms NADPH does not d. electrons cycle back to photosystem ____ photorespiration e. problem in C3 plants ____ photosynthesis f. Calvin-Benson cycle product ____ pigment g. water molecules split ____ photolysis in photosynthesis h. rubisco function
Photosynthesis directly opposes respiration in determining how plants influence atmospheric CO2 concentrations. When a leaf is in the light, both photosynthesis and respiration are occurring simultaneously. The data in the Table were collected from the leaf of a sagebrush plant that was enclosed in a chamber that measures the rate of CO2 exchange. The same leaf was used to collect the data in Interpret the Data in Chapter 7. Respiration is shown as a negative and photosynthesis as a positive rate of CO2 exchange. The net photosynthesis rate is the amount of CO2 (in micromoles per square meter per second) assimilated by the leaf while respiration is occurring; a positive value indicates more photosynthesis is occurring than respiration. The light exposed to the leaf is quantified as the number of photons in the 400 to 700 nm wavelength, the photosynthetic photon flux density (PPFD); 2,000 mol/m2/s is equivalent to the amount of light occurring at midday in full Sun. Observation Photosynthetic Photon Flux Density (PPFD) (mol/m2/s) Net Photosynthesis (mol/m2/s) 1 2,000 9.1 2 1,500 8.4 3 1,250 8.2 4 1,000 7.4 5 750 6.3 6 500 4.8 7 250 2.2 8 0 -2.0 Why is net photosynthesis negative when PPFD is zero? Looking at the respiration data from Interpret the Data in Chapter 7, at what temperature do you think these data were collected? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.
Which of the following statements is incorrect? a. Pigments absorb light of certain wavelengths only. b. Many accessory pigments are multipurpose molecules. c. Chlorophyll a is green because it absorbs green light.
Figure 8.6 On a hot, dry day, plants close their stomata to conserve water. What impact will this have on photosynthesis?
A Moving to another question will save this response. Question 6 Where does the oxygen that is released by plants during photosynthesis come from? chemiosmosis the electron transfer system of photosystem II the electron transfer system of photosystem I splitting water molecules esc 20 000 000 F1 F2 F3 F4 F5 F6 F7 ! %23 # 24 & 1. 2 4 5 6. 7 Q W R T Y U tab
Moving to another question will save this response. Question 23 Cyclic electron flow during the light reactions of photosynthesis produces ATP ADP and NADP+ ATP and NADPH heat and fluorescence Moving to another question will save this response. esc 吕0 000 000 F1 F2 F3 F4 F5 @ # 24 1
A Moving to another question will save this response. Question 11 In plant cells, where would you find ATP synthase complexes? thylakoid membrane and plasma membrane thylakoid membrane and inner mitochondrial membrane inner mitochondrial membrane only thylakoid membrane only acBook P esc 20 000 000 F1 F2 F3 F4 F5 F6 F7 ! # 24 & 1 3. 4 5 6. 7 Q W E R T . Y tab A
The citric acid cycle occurs outside the mitochondria. Group of answer choices True False From a plant's perspective, the main purpose of photosynthesis is to Group of answer choices to produce sugars and oxygen for heterotrophs. plants are not cognitive organisms and therefore we have no idea what the "purpose" of photosynthesis is for the plant. to produce enough O2 gas for the plant to survive through the night. make sugars, such as glucose, to use for building cell walls and for energy needed by the plant. The main purpose of the light reactions in photosynthesis is Group of answer choices to take the high energy electrons out of glucose. to generate ATP and NADPH to send to the Calvin Cycle. to produce all the ATP the plant cell needs for its cellular work. to produce enough oxygen gas for humans to survive. The actual process of making sugar in photosynthesis occurs during the Calvin cycle. Group of answer choices True…
A Moving to another question will save this response. Question 28 The Calvin cycle of plant cells takes place in the interior of the thylakoid (thylakoid space) stroma of the chloroplast outer membrane of the chloroplast thylakoid membrane MacBook P esc 80 000 000 F1 F2 F3 F4 F5 F6 F7 日8866 ! @ # 2$ & 2 3 4 5 7 Q W E R IIY < CO
» A Moving to another question will save this response. Question 8 An electron transport chain pumps protons from the matrix into the intermembrane space of a mitochondria, whereas in chloroplasts, an electron transport chain pumps protons from the thylakoid space to the matrix thylakoid space to the stroma O matrix to the stroma stroma to the thylakoid space MacBook Pro 000 DD esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 ! #3 2$ & | 1 2 3 4 5 6 7 8. { Q W E R T Y tab A | D F G H J L aps lock ? C V M. | command option control option command