CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
3rd Edition
ISBN: 9780135686065
Author: Urry
Publisher: PEARSON
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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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Students have asked these similar questions
(2)
a.
Mineral salt is essential for growth of a plant. The process responsible for
absorption of mineral salt is:
a. Mass flow
b. Diffusion
Active transport
C.
d. Osmosis
b. The reason for my answer is because :
a. Absorption occurs due to concentration gradient
b. Absorption occurs with the help of energy opposing to diffusion
C. Movement as a bulk due to pressure changes
d. Absorption through permeable membranes
When a plant cell, such as one from a peony stem, is submerged in a very hypotonic solution, what is likely to occur?
Group of answer choices
A. the cell will become flaccid
B. the cell membrane will lyse
C. he cell will become turgid
D. plasmolysis will shrink the interior
E the cell will burst
1. Channel proteins used for the bulk passage of water molecules across the cell membrane?2. The tonicity of the extracellular fluid that maintains the turgid appearance of plant cells?3. The tonicity of the extracellular environment causing plasmolysis of plant cells?4. Plant cells are said to be flaccid in this type of cellular environment or solution?
Chapter 5 Solutions
CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
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 osmosis? a. the process where water diffuses across the cells' membrane from an area of lower water concentration to an area of higher water concentration b. Where a solute diffuses across the cell membrane from an area of higher to lower concentration c. the process where water diffuses across a cells' membrane to an equal concentration of water on both sides of the membrane d. The process where a solute diffuses into water through membranous sacks not using energyarrow_forwardA plant cell with ΨW (water potential) = -2.4 is placed in pure water (ΨW = 0). What do you expect to happen to the cell? a. The cell will become hypotonic b. The cell will burst c. The cell will become swollen and turgid d. The cell’s cytoplasm will shrivelarrow_forwardConsider a plant that is exposed to extreme cold temperatures. Do the cells of this plant manipulate the composition of their membranes in response to this environmental stress?If not, explain why the plant does not manipulate membrane composition in response to this stress.If so, explain the specific changes that these cells would carry out in response to this environmental stress.arrow_forward
- Which of the following is true about plant cellulose synthesis? a.cellulose fibers are arranged in a random mesh b. cellulose synthesis is guided by the actin cytoskeleton c.cellulose synthesis occurs outside the cell d. cellulose is a polypeptide that makes up a plant cell wall Question 3 Which of the following are true about collagen synthesis? 1collagen fibers can be oriented in parallel or in alterating directions 2.collagen is synthesized by fibroblasts 3a collagen molecule is a double helix 4collagen is the most abundant protein in the animal extracellular matrix 5collagen molecules are assembled into fibers in the cytoplasm before secretionarrow_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_forwardLE Manage Sources Insert Table of Figures Insert Index Insert Table Update Index Update Tal Mark Style: APA Bibliography Insert Caption Update Table Cross-reference Captions Citation F Citations & Bibliography Index Table of Auth Questions 1. A) If the potato cells were hypotonic to the surrounding solution, the surrounding solution itself would be what to the potato cells (hypertonic, hypotonic, or isotonic)? B) Were the potato cells submerged in water with no salt hypertonic, hypotonic, or isotonic to the surrounding environment? C) Were the potato cells submerged in 5 g/100mL salt solution hypertonic, hypotonic, or isotonic to the surrounding environment? D) Look at your graph. At approximately what concentration of salt solution would the potato cells have likely been isotonic with the surrounding solution? [Tip: Estimate approximately at what concentration there would have been no change in the average length of potato strips.] dnote -tnote tes On Search Researcher Research (-)…arrow_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_forward.a) In Activity 3, you drew plant cells and you may have noticed that the cells appear rectangular or square in shape. Which structure of the plant cell gives the cell its rigid, defined shape? b.Is this structure found in animal (cheek) cells?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_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
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