Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Question
Chapter 44, Problem 12RQ
Summary Introduction
To describe:
The movement of water and minerals through the xylem.
Introduction:
The water is available for the plants in pores of the soil. The plants absorb the water from the roots and the conducting tissues (xylem) transport the water to the requisite sites of the plant.
Summary Introduction
To describe:
The unidirectional movement of water in xylem.
Introduction:
The food is transported bidirectionally through the phloem tissues but the water and dissolved minerals directed in one direction only. The phloem transported synthesized food where the food is needed, such as stored food is transported from roots to leaves whenever required or leaves synthesize food and transports to roots for storage.
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Why can xylem transport water and minerals using deadcells, whereas phloem requires living cells?
If the xylem is under high tension, how will the flow rate in the xylem will be affected?
Both cohesion-tension and root pressure are mechanisms for moving water in the xylem. What does it mean when it says that cohesion-tension pulls water, but root pressure pushes water?
Chapter 44 Solutions
Biology
Ch. 44.1 - Prob. 1CYLCh. 44.1 - distinguish between monocots and dicots?Ch. 44.2 - Prob. 1HYEWCh. 44.2 - explain the difference between meristem cells and...Ch. 44.2 - Prob. 2CYLCh. 44.3 - Prob. 1CYLCh. 44.3 - Prob. 2CYLCh. 44.3 - Prob. 3CYLCh. 44.4 - Prob. 1CSCCh. 44.4 - Prob. 1TC
Ch. 44.4 - diagram an argosperm leaf and describe the...Ch. 44.4 - describe some specialized leaf adaptations and...Ch. 44.5 - Prob. 1TCCh. 44.5 - Prob. 1CYLCh. 44.5 - Prob. 2CYLCh. 44.5 - Prob. 3CYLCh. 44.6 - Prob. 1CYLCh. 44.6 - Prob. 2CYLCh. 44.7 - Prob. 1CSCCh. 44.7 - Prob. 1CYLCh. 44.7 - Prob. 2CYLCh. 44.7 - Prob. 3CYLCh. 44.7 - Prob. 4CYLCh. 44.8 - Prob. 1TCCh. 44.8 - Prob. 2TCCh. 44.8 - Prob. 1CYLCh. 44.8 - Prob. 2CYLCh. 44.8 - Prob. 3CYLCh. 44.9 - Prob. 1TCCh. 44.9 - Prob. 1CYLCh. 44.9 - Prob. 1CTCh. 44 - Taproots a. are characteristic of dicots. b. act...Ch. 44 - Prob. 2MCCh. 44 - Bark a. is a type of epidermal tissue. b. includes...Ch. 44 - Prob. 4MCCh. 44 - Prob. 5MCCh. 44 - Prob. 6MCCh. 44 - Prob. 7MCCh. 44 - Prob. 8MCCh. 44 - Prob. 1FIBCh. 44 - Prob. 2FIBCh. 44 - Prob. 3FIBCh. 44 - Prob. 4FIBCh. 44 - Prob. 5FIBCh. 44 - Prob. 1RQCh. 44 - Prob. 2RQCh. 44 - Prob. 3RQCh. 44 - Prob. 4RQCh. 44 - Prob. 5RQCh. 44 - Prob. 6RQCh. 44 - Prob. 7RQCh. 44 - Prob. 8RQCh. 44 - Prob. 9RQCh. 44 - Prob. 10RQCh. 44 - Describe how water and minerals are absorbed by a...Ch. 44 - Prob. 12RQCh. 44 - Prob. 13RQCh. 44 - Prob. 14RQCh. 44 - Prob. 1ACCh. 44 - Prob. 2ACCh. 44 - Prob. 3AC
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- what are the difference between the transport of materials in xylem and phloem?arrow_forwardThe Casparian strip allows the root to control what solutes enter the xylem. How does it do that?arrow_forwardA Vhet do we call the structures found on the root epidermis that increase the plant's capacity absorb water? d) Briefly explain how the structures you mentioned in c) increase the plant's capacity to absort water. e) Complete the table below: Transport method for water Transport method for (passive / active?) Root Tissue minerals (passive/activ Epidermis: Active Cortex: Active Endodermis: Active Xylem:arrow_forward
- How do air bubbles form in the xylem and how are they eliminated to have a smooth transport of water in xylem?arrow_forwardDescribe the cohesion-tension model of water movement through xylem. Would the weight of water be more of a problem in an upright tree or in a stolon? Why?arrow_forwardConsider the pressure flow model of phloem transport. How do sugars and water enter the phloem from the source? How do sugars and water move from one phloem cell to another?arrow_forward
- Do plants require to adjust the solute types that arrive at the xylem? Name the molecules that assist in adjusting. How is the regulation of the type and quantity of solutes that reach the xylem brought about by the plants?arrow_forwardQuestion 6 The diagram shows how water can adhere to the xylem in the stems of plants, which contributes to water movement in the plant. Which of the following best explains how water is able to move upward from the roots of a plant, through its xylem in the stem, and out to the leaves? -Water Molecuie -Xylem Cell Xylem Cell Wallarrow_forwardWhy is the ability of water molecules to form hydrogen bondsimportant for the movement of xylem sap?arrow_forward
- What does xylem do in transportation in plants?arrow_forwardWhy is phloem transport considered an active process?arrow_forwardIn plants, water is transported through vessels called xylern. The cohesiveness of water molecules allows them to travel up the walls of the vessel. However, for most plants this is not enough to move the water all the way to the top of the plant. How do plants overcome the force of gravity and move water to their upper tissues ? Root hairs push water through the roots and up into the xylem. Plants absorb water through transpiration to supply their upper tissues with water . С The guard cells surrounding the stomata expand and contract, pushing water through the xylem. Water escapes from the leaves through transpiration, creating a vacuum which pulls water up the xylem.arrow_forward
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