EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
3rd Edition
ISBN: 9780137453092
Author: Urry
Publisher: SAVVAS L
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Textbook Question
Chapter 5, Problem 6TYU
Based on Figure 5.17.which of these experimental treatments would increase the rate of sucrose transport into a plant cell?
- A. decreasing extracellular sucrose concentration
- B. decreasing extracellular pH
- C. decreasing cytoplasmic pH
- D. adding a substance that makes the membrane more permeable to hydrogen ions
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Chapter 5 Solutions
EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
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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- What is assumed as the cell membrane function in connection with it as an electrically isolating leaflet? Select one: a. Control over the membrane potential b. Control over the ionic composition of the cytoplasm c. Matrix for enzymatic processes d. Displacement of organellesarrow_forwardWhat direction is the sugar molecule (the blue hexagon) going to diffuse? a. Into the cytoplasm b. Into the extracellular fluid (i.e. the fluid outside the cell) c. The same number of sugar molecules will move into the cytoplasm and the extracellular fluid. d. No diffusion will occur - the membrane prevents all molecules from entering or exiting a cell.arrow_forward33. Which statements concerning passive and active transport are correct? A. Both passive and active transport requires cell energy B. Passive requires cell energy while active transport does not C. Active transport requires cell energy while passive does not D. Neither passive nor active transport requires cell energyarrow_forward
- If you place a flaccid plant cell with ΨS = -0.4 MPa in pure water, which of the following will occur? A. Water will not enter the cell because the flaccid cell has solutes and low water potential. B. Water enters the cell because the flaccid cell has solutes and low water potential. C. Water enters the cell because the flaccid cell has solutes and high water potential. D. Water will not enter the cell because the flaccid cell has solutes and high water potential.arrow_forwardA. Draw a cell membrane and show the H*-ATPase (proton pump) and how it sets up an electrochemical proton gradient, and show how a cell would accumulate the hydrogen sulphate ion (HSO;) using a proton-hydrogen sulfate symport, and how the chloride ion would be transported out of the cell via facilitated diffusion. B. Show how sucrose would be accumulated by vacuoles of root cells via a proton-sucrose antiport.arrow_forwardDiscuss the advantages and disadvantages of a plant cell storing energy in each of the following molecules: ATP, NADPH, glucose, sucrose, starch.arrow_forward
- How are proteins normally transported into a plant cell’s chloroplast, if they were originally synthesized on ribosomes present in the cytosol (not on the rough endoplasmic reticulum)? A. they are packaged into vesicles with v-SNARES for fusion with their target organelles B. they can pass freely through large pores in the inner chloroplast membrane C. they are secreted by the Golgi, captured by receptors, and absorbed by endosomes D. they must pass through the nuclear envelope by means of nuclear pores E. they are unfolded in the translocation channel, then refolded by chaperonesarrow_forwardYou are working with cells that have an internal solute concentration of 5mM solute. This solute is large and ionized. You place them in a medium that has a concentration of 7.7 mM solute. What will happen? (More than one answer may be applicable) a. The cells will swell initially, then return to their original size. b. The cell will burst. c. The cells will shrink in size. d. I do not expect anything to happen.arrow_forwardmeen State one way the two molecules could differ that would explain the difference in their ability to pass through the artificial plant cell membranearrow_forward
- 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.arrow_forwardFor items 18 - 21 choose the letter of the best answer. No need to write the explanations.arrow_forwardExplain what would happen if a plant cell was placed in a hypotonic environment and why (be sure to include solute concentrations, water movement and turgor pressure in your explanation)?arrow_forward
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