Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 7, Problem 4FIB
Summary Introduction
Introduction:
Photosynthesis in plants consists of the light reactions and the Calvin cycle. In the light reactions during photosynthesis, chlorophyll and other molecules located in the thylakoid membranes of the chloroplast absorb sunlight energy and convert it into chemical energy. In Calvin cycle, the carbon is captured from atmospheric carbon dioxide by using energy harnessed during light reactions.
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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 ATP
Which of the following is FALSE about photosynthesis?
Group of answer choices:
-Organisms that can utilize light energy as a food source are called autotrophs.
-Photosynthesis occurs in the chloroplasts.
-The light phase of photosynthesis produces ATP and NADH.
-Carbohydrates, with the aid of energy and reducing power produced from the light phase, are synthesized from carbon dioxide and water.
The basic raw materials for photosynthesis are:
sugar and carbon dioxide.
water and carbon dioxide.
oxygen and water.
sugar and water.
oxygen and carbon dioxide
Chapter 7 Solutions
Biology
Ch. 7.1 - What chemical reactions allow plants to capture...Ch. 7.1 - explain why photosynthesis is important?Ch. 7.1 - diagram the structure of leaves and chloroplasts...Ch. 7.1 - write out and explain the basic equation for...Ch. 7.1 - summarize the main events of the light reactions...Ch. 7.2 - You continuously monitor the photosynthetic oxygen...Ch. 7.2 - Prob. 1HYEWCh. 7.2 - What reactions allow plants to store the...Ch. 7.2 - list the light capturing molecules in chloroplasts...Ch. 7.2 - diagram and describe the molecules within the...
Ch. 7.2 - Prob. 3CYLCh. 7.3 - Prob. 1TCCh. 7.3 - describe the function of the Calvin cycle and...Ch. 7.3 - list the three stages of the Calvin cycle,...Ch. 7.3 - describe the fate of the simple sugar G3P...Ch. 7.3 - Prob. 2TCCh. 7.3 - What global policy changes and what individual...Ch. 7 - Which of the following is True? a. Photosynthesis...Ch. 7 - The Calvin cycle a. can only occur when light is...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Which of the following is False? a. Photosystem II...Ch. 7 - Prob. 1FIBCh. 7 - Chlorophyll a captures wavelengths of light that...Ch. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - Light reactions generate the energy-carrier...Ch. 7 - Explain what would happen to life if...Ch. 7 - Prob. 2RQCh. 7 - Draw a simplified diagram of a leaf cross-section...Ch. 7 - Draw a simplified diagram of a chloroplast and...Ch. 7 - Prob. 5RQCh. 7 - Prob. 6RQCh. 7 - Suppose an experiment is performed in which plant...Ch. 7 - Prob. 2ACCh. 7 - Assume you want to add an accessory pigment to the...
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- Which part of the Calvin cycle would be affected if a cell could not produce the enzyme RuBIsCO?arrow_forwardIs the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.arrow_forwardWhat is the molecule that leaves the Calvin cycle to be converted into glucose? a. ADP b. G3P c. RuBP d. 3-PGAarrow_forward
- Figure 8.18 Which of the following statements is true? In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. G3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants. G3P and oxygen are products. In photosynthesis, water, carbon dioxide, ATP, and NADPH are reactants. RuBP and oxygen are products. In photosynthesis, water and carbon dioxide are reactants. G3P and oxygen are products.arrow_forwardWhich molecule absorbs the energy of a photon in photosynthesis? a. ATP b. glucose c. chlorophyll d. waterarrow_forwardWhat 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_forward
- What molecule is split in the oxygen-releasing light reactions of photosynthesis? A. Water B. Chlorophyll C. Carbon dioxide D. NADPHarrow_forwardwhat is the original source of energy that causes electrons to flow during photosynthesis? A. CARBOHNYDRATES B. SUNLIGHT C. OXYGEN D. GLUCOSEarrow_forwardThe graph here shows the change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards to photosynthesis? A. Water and Oxygen have the highest energy compared to glucose and and carbon dioxide B. Glucose and Oxygen gas have higher energy levels compared to water and carbon dioxide C. Glucose and water have the same energy levels compared to carbon dioxide and oxygen gas D. Glucose and oxygen have a lower energy energy level associated with them compared to carbon dioxide and waterarrow_forward
- Photosynthesis is a process: A. reductive and exergonic B. reductive and catabolic C. reductive, endergonic and catabolic D. reductive, endergonic and anabolicarrow_forwardWhen a photon is absorbed by a chlorophyll, the energy of the photon is transferred to an electron, which is energized from its ground state to an excited state. This event in photosynthesis is specifically called __________.arrow_forwardWhich of the following components is nor used by both plants and cyanobacteria to carry out photosynthesis? a. chloroplasts b. chlorophyll c. carbon dioxide d. waterarrow_forward
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