Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 27, Problem 5SQ
Summary Introduction
Concept introduction: Lateral root helps to anchor the plant securely to the soil. This root contributes to the water uptake and facilitates the extraction of nutrients required for the growth and development of the plant. Different factors are involved in the formation of lateral roots. The lateral root formation is in the control of plant hormones like auxin and by the precise control of aspects by the cell cycle.
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Which of the following is false? a. Stems have vascular bundles, and roots have vascular cylinders. b. Lateral roots can arise from nodes on a root. c. Primary growth (lengthening) can occur at an axillary bud. d. Apical meristem gives rise to epidermal tissue, ground tissue, and vascular tissue. e. Wood is xylem that forms during secondary growth
In vascular plants, one difference between root and shoot systems is that
a. root systems cannot undergo secondary growth.
b. root systems undergo secondary growth, but do not form bark.
c. root systems contain pronounced zones of cell elongation, whereas shoot systems do not.
d. root systems can store food reserves, whereas stem structures do not.
Which of the following is/are false regarding the phloem?
A. It transports starch from the leaves to the stem.
B. It transports sucrose from the leaves to the roots.
C. It is located lateral to the xylem in tree stems.
D. Unlike the xylem, majority of the cells are living.
E. A and D
F. B and C
Chapter 27 Solutions
Biology: The Unity and Diversity of Life
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Ground tissue in monocot stems performs the same functions as _______________ and _______________ in herbaceous eudicot stems. (a) phloem; xylem (b) cork cambium; vascular cambium (c) epidermis; periderm (d) primary xylem; secondary xylem (e) cortex; pitharrow_forwardWhich of the following statements are true of xylem? A) It is found in all land plants.B) It assists in conducting of materials, such as water and minerals, throughout the plant.C) It can provide structural support to the plant.D) It is found in the gametophyte generation, but not in the sporophyte.E) It contains specialized cells known as tracheids and vessel elementsarrow_forwardRoots differ from stems because roots lack a. vessel elements. b. nodes. c. an epidermis. d. ground tissue.arrow_forward
- Which of the following statements is incorrect? a. Vascular bundles are arranged in a ring in the outer parts of monocot stems in whereas in eudicots they are scattered throughout the stem. b. The cuticle is a hydrophobic layer that covers the aerial part of plants c. Vascular bundle arrangement is different in stem and root. d. The epidermis and periderm form the dermal tissue of plants.arrow_forwardWhen absorption of water by the roots fails to keep up with the rate of transpiration, gain in turgor occurs, and the stomata close. A. Agree, because the transpiration occurs faster than root absorption. D. Disagree, because the condition should be when root absorption is able to keep up with transpiration, then stomates close. B. Disagree, because under this condition, the turgor pressure decreases and the stomates close. C. Agree, because increase in turgor pressure under this condition, closes the stomates.arrow_forwardLooking at the anatomy of a tree trunk, the part that greatly contribute to the welfare of humans specially in construction is _. a. heartwood b. secondary xylem c. secondary phloem d. A and Barrow_forward
- Heartwood and sapwood consist of(A) bark.(B) periderm.(C) secondary xylem.(D) secondary phloem.arrow_forwardWhich meristem is correctly matched with its location and a type of derivative cells? Answers are in the form: meristem --> location --> tissue a. procambium – between xylem and phloem – periderm b. ground meristem – root tip – primary xylem c. apical meristem – between xylem and phloem - ground d. protoderm – shoot tip – epidermis e. procambium – root tip – groundarrow_forwardPlant roots develop differently from plant shoots during primary growth. Explain: How is the formation of lateral roots different from making new branches on shoots? Why don't roots and shoots generate new primary growth the same way?arrow_forward
- The activity of lateral meristems_____ older roots and stems. a. lengthens b. thickens c. both a and barrow_forwardThe ability of a sunflower plant to become taller is directly due to itsa. apical meristem. c. mesophyll cells.b. lateral meristems. d. petiole.arrow_forwardWhat would be the consequence of removing the Casparian strip? a. Water and mineral nutrients would not be able to reach the xylem. b. There would be less selectivity as to what passed into the xylem. c. Water and mineral nutrients would be lost from the xylem back into the soil. d. Water and mineral nutrients would no longer be able to pass through the cell walls of the endodermis.arrow_forward
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