CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 5, Problem 7TYU
(a)
Summary Introduction
To evaluate:
An experiment was designed and conducted to analyze the uptake of sucrose in the plant cells. (a) The hypothesis for the decrease in pH, if plant cells are immersed in a sucrose solution. (b) The result obtained, if an inhibitor of the ATP regeneration was added in the beaker once the pH reached a steady level.
Introduction:
The plant cells were immersed in a sucrose solution in a beaker. The movement of the sucrose and water ions will take place by the process of diffusion and osmosis respectively in the beaker. The hypothesis given by the scientists proposes the movement of the hydrogen and sucrose ions inside the plant cells through the plasma membrane with the help of the co-transporter protein channels.
To evaluate: The hypothesis for the decrease in pH, if the plant cells are immersed in a sucrose solution.
(b)
Summary Introduction
To determine: The result that was obtained, if an inhibitor of ATP regeneration was added in the beaker once the pH reached a steady level.
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An experiment is designed to study the mechanism of sucrose uptake by plant cells. Cells are immersed in a sucrose solution, and the pH of the solution is monitored. Samples of the cells are taken at intervals, and their sucrose concentration is measured. The pH is observed to decrease until it reaches a steady, slightly acidic level, and then sucrose uptake begins.
(1)Rank the steps from first to last. To rank items as equivalent, overlap them.
(a)Aquaporins and membrane channel protein in plant and animal,they permit the movement of water across the membrane.Explain why this is necessary.(b) Explain the importance of cell surface membrane to cell
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Chapter 5 Solutions
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
Ch. 5.1 - Plasma membrane proteins have carbohydrates...Ch. 5.1 - WHAT IF? How would the membrane lipid composition...Ch. 5.2 - What property allows O2 and CO2, to cross a lipid...Ch. 5.2 - Why is a transport protein needed to move many...Ch. 5.2 - MAKE CONNECTIONS Aquaporins exclude passage of...Ch. 5.3 - How do you think a cell performing cellular...Ch. 5.3 - WHAT IF? If a Paramecium caudatum cell swims from...Ch. 5.4 - Sodium-potassium pumps help nerve cells establish...Ch. 5.4 - Prob. 2CCCh. 5.4 - MAKE CONNECTIONS Review the characteristics of the...
Ch. 5.5 - As a cell grows, its plasma membrane expands. Does...Ch. 5.5 - Prob. 2CCCh. 5.5 - MAKE CONNECTIONS In Concept 4.7, you learned that...Ch. 5.6 - During an epinephrine-initiated signal in liver...Ch. 5.6 - When a signal transduction pathway involves a...Ch. 5.6 - WHAT IF? How can a target cells response to a...Ch. 5 - In what way do the membranes of a eukaryotic cell...Ch. 5 - Which of the following factors would tend to...Ch. 5 - Phosphorylation cascades involving a series of...Ch. 5 - Lipid-soluble signaling molecules, such as...Ch. 5 - Which of the following processes includes all the...Ch. 5 - Based on Figure 5.17.which of these experimental...Ch. 5 - Prob. 7TYUCh. 5 - SCIENCE, TECHNOLOGY, AND SOCIETY Extensive...Ch. 5 - FOCUS ON EVOLUTION Paramecium and other...Ch. 5 - FOCUS ON INTERACTIONS A human pancreatic cell...Ch. 5 - SYNTHESIZE YOUR KNOWLEDGE In the supermarket,...
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