Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 8, Problem 4RQ
Which of the following components is nor used by both plants and cyanobacteria to carry out photosynthesis?
- chloroplasts
- chlorophyll
- carbon dioxide
- water
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Which of the following does not occur in anoxygenic photosynthesis?
Bacteriochlorophyll is involved in the light reaction.
Water is split into oxidized and reduced parts.
The system operates under anaerobic conditions.
O ATP is formed via cyclic photophosphorylation.
Plant chloroplasts are able to generate which of the following organic product molecules during oxygenic photosynthesis?
carbon dioxide
water
diatomic oxygen
glucose
hydrogen sulfide
Which of the following reactions produces the oxygen released by photosynthesis?
chemiosmosis
reduction of NADP+
splitting of water molecules
electron transfer in photosystem I
Chapter 8 Solutions
Biology 2e
Ch. 8 - Figure 8.6 On a hot, dry day, plants close their...Ch. 8 - Figure 8.16 What is the source of electrons for...Ch. 8 - Figure 8.18 Which of the following statements is...Ch. 8 - Which of the following components is nor used by...Ch. 8 - What two main products result from photosynthesis?...Ch. 8 - In which compartment of the plant cell do the...Ch. 8 - Which statement about thylakoids in eukaryotes is...Ch. 8 - Predict the end result if a chloroplast’s light-,...Ch. 8 - How are the NADPH and GA3P molecules made during...Ch. 8 - Which of the following structures is not a...
Ch. 8 - How many photons does it take to fully reduce, one...Ch. 8 - Which complex is not involved in the establishment...Ch. 8 - From which component of the light-dependent...Ch. 8 - Three of the same species of plant are each grown...Ch. 8 - Plants containing only chlorophyll b are exposed...Ch. 8 - Which molecule must enter the Calvin cycle...Ch. 8 - Which order of molecular conversions is correct...Ch. 8 - Where in eukaryotic cells does the Calvin cycle...Ch. 8 - Which statement correctly describes carbon...Ch. 8 - If four molecules of carbon dioxide enter the...Ch. 8 - What is the overall outcome of the light reactions...Ch. 8 - Why are carnivores, such as lions, dependent on...Ch. 8 - Why are energy carriers thought of as either...Ch. 8 - Describe how the grey wolf population would be...Ch. 8 - How does the closing of the stomata limit...Ch. 8 - Describe the pathway of electi on transfer from...Ch. 8 - What are the roles of ATP and NADPH in...Ch. 8 - How and why would the end products of...Ch. 8 - Why is the third stage of the Calvin cycle called...Ch. 8 - Which part of the light-independent reactions...Ch. 8 - Why does it take three turns of the Calvin cycle...Ch. 8 - Imagine a sealed terrarium containing a plant and...Ch. 8 - Compare the flow of energy with the flow of,...
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- During photosynthesis, low energy electrons are struck by light, bumped up to higher energy levels, and then incorporated into organic molecules. Where does the chloroplast or Cyanobacterium obtain these electrons? From carbon dioxide From sunlight From water From ATParrow_forwardCarbon fixation during the light-independent reaction of photosynthesis obtains its carbon atoms: from water molecules only from carbon monoxide molecules only from H2O molecules only from carbon dioxide molecules only from CO molecules onlyarrow_forwardWhich of the following does NOT apply to chloroplasts? They contain an internal membrane system consisting of thylakoids They contain chlorophyll and the enzymes required for photosynthesis They are bounded by two membranes, the inner of which is folded into the cristae They synthesize ATP (adenosine triphosphate) from ADP (adenosine diphosphate) and Pi (inorganic phosphate)arrow_forward
- Which compartment of the chloroplast is most similar to the mitochondrial matrix? the space between the inner and outer membrane the thylakoid membrane the thylakoid lumen the stroma the photosystemsarrow_forwardWhich of the following is not produced during the light reactions of photosynthesis? H2O NADPH O2 ATParrow_forwardThe light-dependent portion of photosynthesis, in the chloroplasts of green plants and green algae, uses sunlight to strip electrons and protons away from which of the following substrate molecules? water and carbon dioxide only glucose only water only carbon dioxide only glucose, water, and carbon dioxide onlyarrow_forward
- During oxygenic photosynthesis, what happens to the oxygen atoms that were originally present only in substrate water molecules (as they are transformed into product molecules)? they end up in carbon dioxide, glucose, and water molecules they end up in both glucose and water molecules they end up in glucose molecules only they end up in carbon dioxide molecules only they end up in diatomic oxygen gas molecules onlyarrow_forwardWhich of the following statements about photosynthesis is NOT true? Light independent reactions are very similar to the electron transport chain of cellular respiration Light is absolutely essential for both aspects of photosynthesis In order replace electrons, water is split to form oxygen gas Light dependent reactions are very similar, but in reverse, to the Krebs cycle and glycolysisarrow_forwardWhich of the following statements about the light reactions of photosynthesis is NOT true? Chlorophyll and other pigments absorb light energy, which excites electrons ATP is generated by photophosphorylation Electrons from water are given to the chlorophyll molecules of Photosystem! The splitting of water molecules provides a source of electronsarrow_forward
- This molecule: is contained in the thylakoid membranes of chloroplasts converts sunlight energy into ATP •reflects green wavelengths of lightarrow_forwardWhich among the following statements is CORRECT? The thylakoid membrane, in the chlorophyll, contains photosystems which are used to capture photons and excite electrons Electrons excited in photosystem II help the chloroplast produce NADPH Stroma is a gelatinous matrix inside chloroplast that contains ribosomes, DNA, and enzymes Electrons excited in the photosystem I help the chloroplast produce ATParrow_forwardWhich of the following is produced during the light reactions of photosynthesis? C6H12O6 CO2 O2 ADParrow_forward
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