EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
3rd Edition
ISBN: 9780137453092
Author: Urry
Publisher: SAVVAS L
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Chapter 28, Problem 2TYU
Summary Introduction
Introduction:
The outermost layer of the root of a plant is termed as root cortex. It is composed of differentiated cells, such as parenchyma cells (ground tissue system). Root cortex is bound on outside by epidermis and inside by the endodermis in plants.
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Root hairs form in the zone of
a. cell division.
b. elongation.
c. maturation.
d. More than one of the choices are correct.
Roots differ from stems because roots lack
a. vessel elements.
b. nodes.
c. an epidermis.
d. ground tissue.
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…
Chapter 28 Solutions
EP CAMPBELL BIO.IN FOCUS AP-MOD.MASTER.
Ch. 28.1 - Prob. 1CCCh. 28.1 - WHAT IF? If humans were photoautotrophs, making...Ch. 28.1 - Prob. 3CCCh. 28.2 - Prob. 1CCCh. 28.2 - Prob. 2CCCh. 28.2 - Prob. 3CCCh. 28.3 - Prob. 1CCCh. 28.3 - Prob. 2CCCh. 28.3 - Prob. 3CCCh. 28.4 - A sign is hammered into a tree 2 m from the trees...
Ch. 28.4 - Would you expect a tropical tree to have distinct...Ch. 28.4 - Prob. 3CCCh. 28 - Most of the growth of a plant body is the result...Ch. 28 - Prob. 2TYUCh. 28 - Heartwood and sapwood consist of A. bark. B....Ch. 28 - Prob. 4TYUCh. 28 - Which of the following would not be seen in a...Ch. 28 - Prob. 6TYUCh. 28 - SCIENTIFIC INQUIRY Grasslands typically do not...Ch. 28 - Prob. 8TYUCh. 28 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 28 - SYNTHESIZE YOUR KNOWLEDGE This stained light...
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- The ________ forces selective uptake of minerals in the root. a. pericycle b. epidermis c. endodermis d. root caparrow_forwardIn roots, growth of lateral branches beginsa. on the root epidermis.b. on the root hairs.c. at the ground meristem.d. at the pericycle.arrow_forwardA stamen contains aa. style.b. stigma.c. filament.d. carpel.arrow_forward
- The innermost layer of the root cortex is the (A) core. (B) pericycle. (C) endodermis. (D) pith.arrow_forwardDifferentiate taproot system from fibrous root system.arrow_forwardCompare the preserved untreated and colchicine-treated onion root tip: a. size b. appearance c. other morphological characterizationsarrow_forward
- b. Root hairs initiate from the (A) pericycle (B) trichoblast (C) atrichoblast (D) lateral root caparrow_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_forwardContractile roots usually are combined with such shoot modification as A. Bulb B. Tuber C. Rhizome D. Tendril E. Stolenarrow_forward
- What happens to the radicle of the taproot and fibrous root systems?arrow_forwardA region of active cell division where primary growth occurs is the a. internode.b. apical meristem.c. root nodule.d. cork cambium.e. vascular cambium.arrow_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
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