Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 6, Problem 2SQ
Summary Introduction
Introduction:
The process of conversion of light energy to chemical energy occurs in two phases of reactions, that is light-dependent reaction and light-independent reaction. In photosynthesis, the two photosystems absorbs light which in turn stimulates an electron molecule to a higher energy state, transforming the energy of sunlight to chemical energy.
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How are the NADPH and G3P molecules made during photosynthesis similar? a. They are both end products of photosynthesis. b. They are both substrates for photosynthesis. c. They are both produced from carbon dioxide. d. They both store energy in chemical bonds.
Animal cells conduct:
A. Cellular Respiration
B. Photosynthesis
C. Both
Plant cells conduct:
A. Cellular Respiration
B. Photosynthesis
C. Both
The energy that is used by almost all living things on our planet comes from the sun. It is captured by plants, algae, and some bacteria through the process ofa. respiration. c. photosynthesis.b. the Krebs cycle. d. fermentation
Chapter 6 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 6 - Energy Efficiency of Biofuel Production Most of...Ch. 6 - Energy Efficiency of Biofuel Production Most of...Ch. 6 - Energy Efficiency of Biofuel Production Most of...Ch. 6 - A cat eats a bird, which ate a caterpillar that...Ch. 6 - Prob. 2SQCh. 6 - Most of the carbon dioxide that plants use for...Ch. 6 - Which of the following statements is incorrect? a....Ch. 6 - In cyanobacteria and photosynthetic eukaryotes,...Ch. 6 - When a photosystem absorbs light, _______. a....Ch. 6 - In the light-dependent reactions, _______. a....
Ch. 6 - In the light-dependent reactions, what accumulates...Ch. 6 - The atoms in oxygen molecules released during...Ch. 6 - Prob. 10SQCh. 6 - Prob. 11SQCh. 6 - Which of the following substances does not...Ch. 6 - Closed stomata ________. a. limit gas exchange b....Ch. 6 - In C3 plants, ______ makes sugar production...Ch. 6 - Match each term with the best description. ______...Ch. 6 - Prob. 1CTCh. 6 - While gazing into an aquarium, you see bubbles...Ch. 6 - AC3 plant absorbs a carbon radioisotope (as part...Ch. 6 - In 2005, a new species of green sulfur bacteria...
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The Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formation
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What is the energy of a photon first used to do in photosynthesis? a. split a water molecule b. energize an electron c. produce ATP d. synthesize glucose
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In ________, electrons that have been energized by light contribute their energy to add phosphate to ADP, producing ATP. (a) crassulacean acid metabolism (b) the Calvin cycle (c) photorespiration (d) C4 pathways (e) photophosphorylation
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Photosynthesis runs on the energy of_______ . a. light c. O2 b. hydrogen ions d. CO2
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When is oxygen produced during photosynthesis?
a. light reation alone
b. light reation and calvin cycle
c.neither the light reaction and calvin cycle
d. the calvin cycle alone
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Select the best answer describing the role of light in photosynthesis
a.It is the source of respiration
b.It is the source of carbon for the reaction
c.It is the source of energy for the reaction
d. all of these
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When oxygen gas is released as a result of photosynthesis, it is a direct byproduct of what process?
a. splitting of water molecules
b. the electron transfer system in the photosystems
c. chemiosmosis
d. reducing of NADP+
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The oxygen given off by photosynthesis comes froma. H2O. c. glucose.b. CO2. d. RuBP.
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Over the past decades, the CO2 concentration in the atmosphere has increased. a. Predict the effect of increasing carbon dioxide concentrations on photorespiration. b. Scientists suggest that increasing CO2 concentrations are leading to higher average global temperatures. If temperatures are increasing, does this change your answer to part (a)?
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Light is needed for photosynthesis, because it
A. Provides energy, which is converted to chemical energy
b. Provides, heat energy, which is converted to chemical energy
c. Directly causes ATP production
d. Brings water into the chloroplast
e. Drives many enzymatic reactions
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Define the following terms: a. photosynthesis b. photosystem c. light harvesting antenna d. reaction center e. chlorophyll
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Without carbon dioxide, which part of photosynthesis could not proceed?
A) light-dependent reactions
B) Calvin cycle
C) photosystem I
D) photosystem II
E) electron transport
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Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY