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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- Which 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_forwardThe 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_forward
- Aboveground plant surfaces are typically covered with cuticle. Why do roots lack this protective coating?arrow_forwardThe 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_forward
- Which 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_forwardWhich 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_forward
- Which of the following is not an example of leaf adaptations against excessive heating? A. Small leaves B. Leaf rolling C. Reflective hairs D. Thin cuticlearrow_forwardWhich of the following is/are true? I. A measure of how much water is present in comparison with the solute molecules in the same volume of solution known as diffusion gradient II. The region found above the region of cell division can be seen in different young roots because of the presence of numerous root hairs that increase absorption. III. The meristematic region is has cells that elongate several times their original length and push the root tip through the soil. IV. The meristematic region is the growing apex of the rootarrow_forwardThe structure of the C4 leaf shows a. how mesophyll cells hug the epidermis of the leaf. hug the bundle sheath cells. b. C. they are spikey. how there are stomata on the underside of the leaf. they store water. TOU O b Oc O e darrow_forward
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