BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 27, Problem 7A
Summary Introduction
Introduction: All life forms are classified into three main domains, namely, archaea, bacteria, and eukarya. These three domains are classified based on the type of cells of the organisms. The prokaryotes are unicellular microorganisms that lack membrane-bounded organelles and nucleus.
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A. The C4 plant performs photosynthesis more efficiently than the C3 when the CO2 concentration is 600ppm or less. Provide one reason why the rate of photosynthesis doesn’t change for the C4 plant when the CO2 concentration increases above 400 ppm.
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Chapter 27 Solutions
BIOLOGY
Ch. 27.1 - Prob. 1LOCh. 27.1 - Prob. 2LOCh. 27.1 - Describe classification systems for prokaryotes.Ch. 27.2 - Prob. 1LOCh. 27.2 - Prob. 2LOCh. 27.2 - Prob. 3LOCh. 27.3 - Prob. 1LOCh. 27.3 - Prob. 2LOCh. 27.3 - Prob. 3LOCh. 27.4 - Describe the metabolic strategies employed by...
Ch. 27.4 - Compare and contrast the ways prokaryotes can...Ch. 27.5 - Describe the role of prokaryotes in biogeochemical...Ch. 27.5 - Prob. 2LOCh. 27.5 - Prob. 3LOCh. 27.6 - Prob. 1LOCh. 27.6 - Prob. 2LOCh. 27.6 - Prob. 3LOCh. 27 - Data analysis If the excision of an F plasmid Is...Ch. 27 - Prob. 1IQCh. 27 - Prob. 1UCh. 27 - A bacteria that obtains carbon from the atmosphere...Ch. 27 - Prob. 3UCh. 27 - Bacteria and archaebacteria may be distinguished...Ch. 27 - Prob. 5UCh. 27 - Prob. 6UCh. 27 - Prob. 7UCh. 27 - Prob. 1ACh. 27 - Prob. 2ACh. 27 - Prob. 3ACh. 27 - Prob. 4ACh. 27 - Prob. 5ACh. 27 - Some bacteria are capable of forming NH4+ from...Ch. 27 - Prob. 7ACh. 27 - Prob. 1SCh. 27 - Prob. 2SCh. 27 - Use of multiple antibiotics is not a bad idea if...Ch. 27 - Soil-based nitrogen-fixing bacteria appear to be...
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- What 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_forwardCompare photophosphorylation and oxidative phosphorylation. How is chemiosmosis in chloroplasts different from chemiosmosis in mitochondria? a. Chemiosmosis is used in chloroplasts to transfer chemical energy from organic molecules to ATP. b. In mitochondria, light is transformed into ATP using photosystems I and II. c. Chemiosmosis in mitochondria occurs across an intra-organelle membrane, where it does not in chloroplasts. d. In chloroplasts, the high-energy electrons come from water.arrow_forwardWhat will the pH in the space inside the thylakoid membrane be? A. 2 B. acidic C. neutral D. basicarrow_forward
- In which compartment of the plant cell do the lightindependentreactions of photosynthesis take place?a. thylakoidb. stromac. outer membraned. mesophyllarrow_forwardTerrestrial plants have stomata on the surface of their leaves. Stomata are surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma. Which of the following best explains how the structure of the leaf is used in processes that occur in plants? A. Water enters the plant through the surface of the leaf for transpiration B. Gases for photosynthesis are exchanged through the surface of the leaf. C. Energy for cellular reproduction is absorbed through the surface of the leaf. D. Carbon dioxide enters the plant through the surface of the leaf for cellular reproduction.arrow_forwardIn hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d C3 plants have no mechanism to avoid photorespiration C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light- independent reaction in the bundle-sheath cells CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata closed during the day C4 plants include corn, sugarcane, and many grasses CAM plants can undergo photophosphorylation in the absence of sunlight 7 Open in Readinarrow_forward
- In hot, dry climates, plants have evolved mechanisms to avoid photorespiration. Which of the following is FALSE Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d e C3 plants have no mechanism to avoid photorespiration C4 plants reduce photorespiration by separating the light reaction in the mesophyll cells from the light- independent reaction in the bundle-sheath cells CAM plants minimize photorespiration by collecting and storing CO2 at night and keeping their stomata closed during the day C4 plants include corn, sugarcane, and many grasses CAM plants can undergo photophosphorylation in the absence of sunlight Open in Readirarrow_forwardGive an example of two types of plant cells that lack chloroplasts. How do plant cells that lack chloroplasts produce the ATP they need? Do plant cells that contain chloroplasts also contain mitochondria?arrow_forwardWhat is the name of the cellular structure where the light-dependent reactions of photosynthesis occur in plants? Stroma Thylakoid membrane Outer chloroplast membrane Stomataarrow_forward
- Describe how the structure of the mitochondria OR the chloroplast aids in function. 12. Why do the chlorophyll a molecules in photosystem II have an optimal absorbance of light at 680 nm, while the chlorophyll a molecules in photosystem I have an optimal absorbance of light at 700 nm? What does this tell you about the transfer of energy between these two photosystems during the light reactions?arrow_forwardYou add a chemical to plant leaf cells that binds plastoquinone (PQ), leaving only a small amount of PQ active in the cells. Predict two potential effects that this will have on photosynthesis.arrow_forwardAre chloroplast moving or stationary? Make an inference to explain thisarrow_forward
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