Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 36, Problem 8TYK
Summary Introduction
Introduction: The aquaporins are the membrane channels which are typically composed of the identical protein subunits. They occur as multiple isoforms in plants and reflect a high diversity of transport selectivity, cellular localization, and regulation properties.
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Which of the following would require active transport?
Select one:
O a. Stomata opening
b. Potassium moving through an ion channel
O c. Water moving through aquaporins
O d. Water diffusing into xylem from the root
e. The tension in the leaf caused by evaporating water
Plant roots have devised in such a manner that they can control over the ions that enter into the water conducting tissue system. Write the location and chemical composition of specific region of plant roots, which make it possible and briefly discuss its importance.
What is true about osmosis?
Select one:
a.
it is passive movement of water across a membrane
b.
it is an active process
c.
it must require special proteins
d.
it is the driving force for water movement from the root to the shoot
e.
it involves movement of water toward its highest concentration
Chapter 36 Solutions
Study Guide for Campbell Biology
Ch. 36 - Prob. 1IQCh. 36 - a. A flaccid plant cell has a water potential of...Ch. 36 - Prob. 3IQCh. 36 - Prob. 4IQCh. 36 - Prob. 5IQCh. 36 - Prob. 6IQCh. 36 - Prob. 1SYKCh. 36 - Prob. 2SYKCh. 36 - If a plant has a phyllotaxy of alternate leaves...Ch. 36 - Prob. 2TYK
Ch. 36 - Prob. 3TYKCh. 36 - Prob. 4TYKCh. 36 - Prob. 5TYKCh. 36 - Prob. 6TYKCh. 36 - Prob. 7TYKCh. 36 - Prob. 8TYKCh. 36 - Prob. 9TYKCh. 36 - Prob. 10TYKCh. 36 - Prob. 11TYKCh. 36 - Prob. 12TYKCh. 36 - Prob. 13TYKCh. 36 - Prob. 14TYKCh. 36 - Prob. 15TYKCh. 36 - Your favorite houseplant is wilting. Which of the...Ch. 36 - Prob. 17TYKCh. 36 - Which of the following mechanisms explains the...Ch. 36 - Prob. 19TYKCh. 36 - Prob. 20TYK
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- Minerals dissolved in watera. enter root epidermal cells by active transport.b. take an extracellular pathway through roots to thevascular cylinders.c. are transported up through phloem to the leaves.d. enter root cortex cells by diffusion.arrow_forwardWhich of the following would allow a plant to tolerate a cold environment? Group of answer choices A. producing small, smooth leaves with a small boundary layer B. generating sparsely placed leaf hairs to reflect solar radiation C. increasing the proportion of unsaturated fatty acids in cell membranes D. increasing evapotranspiration E. increasing the proportion of leaf mass relative to total body massarrow_forward(b) Water absorbed by plant roots travels by different pathways from the root hairs to the xylem. Figure 5 shows these pathways in a plant root. cell A xylem vessel root hair key pathway B Tissue D Tissue E * pathway C Figure 5: Schematic representation of water movement through the tissues of a plant root (PLEASE TURN OVER) Page 6 CONT'D from Page 5 i. Explain how water moves from the root hair to the xylem vessels in the root. ii. Identify cellA, pathway B, pathway C, tissue D and tissue E in Figure 5.arrow_forward
- i. Based on Figure 2, identify the structure that regulates the movement of water and minerals towards the xylem in the root. ii. Name structure of the cell membrane allows it to act as a selective barrier? iii. Predict what will happen to the transportation of water and minerals through the plasma membrane if the root was poisoned and no cellular respiration occurred.arrow_forwardFollowing infection with a pathogen, one response is to spread an alarm signal to increase defenses and antimicrobial compounds throughout the plant body and the network of plants connected by mycorrhizae. Which chemical spread this alarm signal? Select one: a. Salicylic acid b. Jasmonic acid c. Indole acetic acid d. Gibberellic acid e. Abscisic acidarrow_forwardi. Based on Figure 2, identify the structure that regulates the movement of water and minerals towards the xylem in the root ii. Predict what will happen to the transportation of water and minerals through the plasma membrane if the root was poisoned and no cellular respiration occurred. iii. . Nitrate and phosphate are important anions for plants. Explain how the movement of protons (H+) influence the anions uptake across the plasma membrane of the root hair cellsarrow_forward
- Plants obtain water and nutrients from the soil.a. What structure in a plant uses water in a metabolic reaction? What is this metabolic process called? b. Describe in detail two mechanisms by which water can move from the roots to this location c. If a plant was exposed to saltwater, how would it affect the above processes? Be specific, including a discussion of water potential d. How do plants absorb minerals from the soil? Does this process require energy?arrow_forwardWhich of the following describes what happens in the ROOT HAIR cells? Mineral lons Water pass into the passes into Plant loses plant the plant water by through through transpiration active osmosis transport A Yes Yes No В Yes Yes Yes C Yes No Yes D No Yes Yesarrow_forwardWhen a cell from flaccid plant tissue is placed into a hypotonic solution: a. The cytoplasm will shrink and plasmolysis will occur b. Net water movement will be into the plant cell c. Lysosomes will remove the excess water, protecting the cell d. No net water movement will occur e. The plant cell will break open (lyse)arrow_forward
- What are ways in which plants accomplish tissue-level transport?a. transmembrane transport of solutes from one cell to anotherb. symplastic transport of materials from one cell to another viaplasmodesmatac. apoplastic transport of water and dissolved solutes through cell wallsand intercellular spacesd. All of the above are used for tissue-level transport.e. None of the above are used for tissue-level transport.arrow_forwardSucrose enters the phloem tubes from mesophyll cells in the leaf by: O a. Proton pumps (hydrogen ions are pumped out as sucrose is pumped in). O b. Sucrose pumps. Oc. Co-transport with hydrogen ions. O d. Diffusion down a gradient. O e Osmosis (water carrying the sucrose is sucked in).arrow_forwardThese are pores in plant cell membranes that allow for a shared cytoplasm between cells Select one: a. xylem b. stomata c. apical meristem d. aquaporins e. plasmodesmotaarrow_forward
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