Stern’s Introductory Plant Biology 12Th edition By Bidlack
Chapter 05
Roots and Soils
Multiple Choice Questions
1. A root system may function in which of the following?
A. anchorage and storage
B. growth
C. absorption and conduction
D. production of new roots
E. all of the answers are correct.
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2. In addition to anchoring a plant, roots usually function directly in which of the following processes?
A. photosynthesis
B. production of new leaves
C. production of bud scales
D. absorption of minerals in solution
E. all of these answers are correct.
Stern – 005 Chapter… #17
3. Typical root systems form up to _____________ of the total dry biomass of a plant.
A. one-tenth
B. one fifth
C. one fourth
D. one third
E. one half
4. Which of the following is a part of the embryo of a seed?
A. root hairs
B. radicle
C. fibrous roots
D. taproot
E. adventitious roots
Stern – 005 Chapter… #6
5. This can be found as part of the embryo.
A. root hairs
B. fibrous roots
C. radicle
D. adventitious roots
E. primary root
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6. ____________ root systems develop from the radicle.
A. Adventitious
B. Climbing
C. Stem cutting
D. Fibrous
E. Taproot
7. Monocots, such as grasses, usually have __________ root systems.
A. simple, straight
B. taproot
C. fibrous
D. secondary
E. aerial
8. The perception of gravity by a root takes place in
A. root hairs.
B. the region of elongation.
C. the region of cell division (apical meristem).
D. the region of maturation.
E. the root cap.
Stern – 005 Chapter… #2
9. In traversing the root to the central xylem vessels, the last living tissue that water passes through before entering the xylem is the
A. endodermis.
B. pericycle.
C. cortex.
D. phloem.
E. epidermis.
Stern – 005 Chapter… #5
10. Cells of the apical meristem
A. have large vacuoles.
B. divide at a fairly steady rate.
C. has little to do with the root cap.
D. are generally cuboidal in shape.
E. have no nuclei.
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11. The tissue adjacent to the endodermis toward the center of a root is the
A. cortex.
B. pith.
C. pericycle.
D. xylem.
E. phloem.
Stern – 005 Chapter… #11
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