BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 25, Problem 12SA
Summary Introduction
Introduction:
Throughout a stem, vascular bundles are organized with xylem and phloem and it runs lengthwise. The function of vascular bundles is to provide water, ions, and nutrients to all parts of the plant body. Fibers and tracheids are the components of vascular bundles that provide mechanical strength to stem. The bundles of the vascular tissues that run lengthwise through the mid of plant are known as vascular bundles.
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BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
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- Sugar 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_forwardTypically, vascular tissue is organized as____ in stems and as____ in roots. a. multiple vascular bundles; one vascular cylinder b. one vascular bundle; multiple vascular cylinders c. one vascular cylinder; multiple vascular bundles d. multiple vascular cylinders; one vascular bundlearrow_forwardThe ________ forces selective uptake of minerals in the root. a. pericycle b. epidermis c. endodermis d. root caparrow_forward
- Root hairs____ . a. conduct water from cortex to aboveground shoots b. increase the root’s surface area for absorption c. anchor the plant in soilarrow_forwardMost water moves from soil to vascular cylinder_____ . a. through root hairs c. through root cell walls b. between root cells d. in xylemarrow_forwardThe first formed primary xylemelements are called ___________.A. MetaxylemB. ProtoxylemC. Xylem fibresD. Xylemp arenchymaarrow_forward
- In a(n)_____ , the primary root is typically the largest. a. lateral meristem c. fibrous root system b. adventitious root system d. taproot systemarrow_forwardwhich of the following concernig roost is incorrect? a. monocot roots exhibit primary grwoth and secondary growth b. dicots roots are called taproots c. dicots are called perennials because they exhibit secondary growth d. monoct roots form fibrous roots e. secondary growth causes the xylem and phloem to increase in diameter.arrow_forwardWhen guard cells swell,______ . a. transpiration ceases c. stomata open b. sugars enter phloem d. root cells diearrow_forward
- All of the vascular bundles inside a typical______ are arranged in a ring. a. monocot stem c. monocot root b. eudicot stem d. eudicot rootarrow_forwardSecondary growth in stems is usually seen in ________. a. monocots b. dicots c. both monocots and dicots d. neither monocots nor dicotsarrow_forward41. all of the following have aerial roots except ____ a. orchids b. banyan trees c. ivies d. yellow waterweed 42. what is the leaf apex that ends in a short sharp point a. rounded b. acuminate c. apiculate d. acutearrow_forward
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