Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 27, Problem 11SQ
Summary Introduction
Concept introduction: Root hair is the hair-like outgrowth of a plant root that absorbs the water and minerals from the soil. The important function of the root hairs is the collection of water and mineral nutrients present in the soil and takes them through the roots to the rest of the body. The root hairs do not have chloroplast as it does not carry out photosynthesis.
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Root hairs____ . a. conduct water from cortex to aboveground shoots b. increase the root’s surface area for absorption c. anchor the plant in soil
Tissues Present, Primary Growth (enumerate from outermost-to innermost tissue layer; include unique tissue in the root)
a. Monocot root
b. Dicot root
A. symplast
B. Apoplast
Chapter 27 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 27 - Prob. 1SQCh. 27 - Prob. 2SQCh. 27 - Which of the following cell types remain alive in...Ch. 27 - Prob. 4SQCh. 27 - Prob. 5SQCh. 27 - Prob. 6SQCh. 27 - Prob. 7SQCh. 27 - Prob. 8SQCh. 27 - Prob. 9SQCh. 27 - Tree Rings and Droughts El Malpais National...
Ch. 27 - Tree Rings and Droughts El Malpais National...Ch. 27 - Prob. 10SQCh. 27 - Prob. 11SQCh. 27 - Prob. 12SQCh. 27 - Prob. 13SQCh. 27 - Tree rings occur because_____ a. there are...Ch. 27 - Match the plant parts with the best description....Ch. 27 - Prob. 1CTCh. 27 - Prob. 2CTCh. 27 - Prob. 3CTCh. 27 - Prob. 4CTCh. 27 - Is the plant with the yellow flower above a...
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- Guard cellsa. are found primarily on the upper surface of leaves.b. open their stomata by shrinking.c. lack chloropolasts.d. close in response to abscisic acid.arrow_forwardThe first formed primary xylemelements are called ___________.A. MetaxylemB. ProtoxylemC. Xylem fibresD. Xylemp arenchymaarrow_forwardWhich of the following statements are true for root endodermis?I. Endodermal cells constitute the innermost layer of root cortex and surrond the vascular cylinder (xylem and phloem). II. Endodermal wall is covered with waxy layer of casparian strip which blocks apoplastic transfer of minerals.III. Due to presence of casparian strip, water and minerals can only eneter the vascular cylinder if they will be able to cross the plasma membrane of an endodermal cell.arrow_forward
- The Casparian strip… I. is a waxy layer in the walls of the endodermal cells of the root II. promotes apoplastic movement of water and minerals across the endodermis III. provides an opportunity for regulation of mineral uptake by the plantarrow_forwardDetermine which of the following statements is/are true for root endodermis? A and B B and C B A and C A, B, and C C Aarrow_forwardAboveground plant surfaces are typically covered with cuticle. Why do roots lack this protective coating?arrow_forward
- The Casparian strip… I. is a waxy layer in the walls of the endodermal cells of the root II. promotes apoplastic movement of water and minerals across the endodermis III. provides an opportunity for regulation of mineral uptake by the plant Select one: a. I, II and III are true b. Only I and II are true c. Only I is true d. Only I and III are true e. Only II and III are truearrow_forwardWhen farmers apply too much fertilizer to the ground, the solute concentration is higher in the soil than it is in the roots. Explain how this would affect plants. And place these structures in the order that water passes through them during transpiration: endodermis, root cortex, root hair, spongy mesophyll, stomata, and xylem. -Thank you!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
- Which one of the following statements about root hairs is CORRECT? Select one: a. They are found in the zone of cell elongation and help the root to fix nitrogen. b.They are found in the root cap and help the root sense gravity. c.They are found in the zone of cell division of the root and help anchor the plant in the soil. d.They are found in the root apical meristem and help the root to absorb water. e.They are found in the zone of cell differentiation in the root. Which of the following best describes the route to fruit formation in flowering plants? Select one: a. 1) pollination, 2) double fertilization, 3) embryo develops, 4) ovary matures, 5) ovule matures. b. 1) pollination, 2) germination of pollen, 3) endosperm develops, 4) ovule develops. c. 1) pollination, 2) endosperm develops, 3) embryo develops, 4) ovule matures. d. 1) pollination, 2) fertilization, 3) embryo develops, 4) ovary matures. e.1) pollination, 2) fertilization, 3) germination of pollen, 4) ovule…arrow_forwardThe mature regions of roots are relatively impermeable to water. Why? Explain its importance.arrow_forwardSugar transport from leaves to roots occurs by_______ . a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. evaporation, tension, and cohesionarrow_forward
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