Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
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Textbook Question
Chapter 5, Problem 7RQ
Plants produce oxygen when they photosynthesize. Where does the oxygen come from?
a. splitting water molecules
b. ATP synthesis
c. the electron transport chain
d. chlorophyll
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In which process is ATP produced in both photosynthesis and cellular respiration by ATP synthase, respectively?
a.
Krebs Cycle and Light-dependent reaction
b.
Light-dependent reaction and oxidative phosphorylation
c.
Glycolysis and Light-independent reaction
d.
Light-independent reaction and oxidative phosphorylation
What molecule is split in the oxygen-releasing light reactions of photosynthesis?
A. Water
B. Chlorophyll
C. Carbon dioxide
D. NADPH
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+
Chapter 5 Solutions
Concepts of Biology
Ch. 5 - Figure 5.7 On a hot, dry day, plants close their...Ch. 5 - What two products result from photosynthesis? a....Ch. 5 - Which statement about thylakoids in eukaryotes is...Ch. 5 - From where does a heterotroph directly obtain its...Ch. 5 - What is the energy of a photon first used to do in...Ch. 5 - Which molecule absorbs the energy of a photon in...Ch. 5 - Plants produce oxygen when they photosynthesize....Ch. 5 - Which color(s) of light does chlorophyll a...Ch. 5 - Where in plant cells does the Calvin cycle take...Ch. 5 - Which statement correctly describes carbon...
Ch. 5 - What is the molecule that leaves the Calvin cycle...Ch. 5 - What is the overall purpose of the light reactions...Ch. 5 - Why are carnivores, such as lions, dependent on...Ch. 5 - Describe the pathway of energy in light-dependent...Ch. 5 - Which part of the Calvin cycle would be affected...Ch. 5 - Explain the reciprocal nature of the net chemical...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which statement correctly describes carbon fixation? a. the conversion of CO2 to an organic compound b. the use of RUBISCO to form 3-PGA c. the production of carbohydrate molecules from G3P d. the formation of RuBP from G3P molecules e. the use of ATP and NADPH to reduce CO2arrow_forwardWhat two products result from photosynthesis? a. water and carbon dioxide b. water and oxygen c. glucose and oxygen d. glucose and carbon dioxidearrow_forwardWhich molecule absorbs the energy of a photon in photosynthesis? a. ATP b. glucose c. chlorophyll d. waterarrow_forward
- 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 glucosearrow_forwardwhat is the original source of energy that causes electrons to flow during photosynthesis? A. CARBOHNYDRATES B. SUNLIGHT C. OXYGEN D. GLUCOSEarrow_forwardWhere in plant cells does the Calvin cycle take place? a. thylakoid membrane b. thylakoid space c. stroma d. granumarrow_forward
- The net effect of photosynthesis, chemically, is reduction, leading to the formation of which products? a. Carbon dioxide and carbohydrates b. Carbon dioxide and protein c. Oxygen and carbohydrates d. Oxygen and ATParrow_forwardWhat are the roles of ATP and NADPH in photosynthesis? a. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce sugars. b. ATP and NADPH are forms of chemical energy produced from the light independent reactions, to be used in the light dependent reactions that produce sugars. c. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that produce proteins. d. ATP and NADPH are forms of chemical energy produced from the light dependent reactions to be used in the light independent reactions that use sugars as reactants.arrow_forwardWhere did the energy to power the light-independent reactions come from? A. chlorophyll from photosystem B. FADH2FADH2 from the outer membrane C. NADH in mitochondria D. proton gradient across thylakoidarrow_forward
- How is the proton gradient of H+ generated in chloroplasts during photosynthesis? A. Light splits water molecules in the stroma, causing the release of protons. B. Protons are pumped across the thylakoid membrane using energy from ATP. C. Light causes protons to flow through protein channels in the thylakoid membrane. D. The flow of electrons from carrier to carrier in the thylakoid membrane causes the pumping of protons.arrow_forwardHow is the difference made up in the Calvin cycle when more ATP is used than NADPH? A. The Calvin cycle occurs half as often as the light-dependent reaction B. The cyclic pathway creates more ATP C. Additional ATP is created from glucose D. Excess NADPH is reused in the light reactionarrow_forwardWhen 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 alonearrow_forward
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