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Chapter 23: Problem 7
The dermal tissue of a plant provides __ for the plant. a. transport of water b. transport of minerals c. support d. protection
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How do the locations and the functions of the three types of meristematic tissues compare? a. Apical meristems found in the tip of stems and roots promote growth by elongation; lateral meristems found at nodes and bases of leaf blades promote increase in length and intercalary meristems found in the vascular and cork cambia promote increase in girth. b. Apical meristems found at nodes and bases of leaf blades promote growth by elongation; lateral meristems found in the vascular and cork cambia promote increase in girth and intercalary meristems found in the tip of stems and roots promote increase in length. c. Apical meristems found in the tip of stems and roots promote growth by elongation; lateral meristems found in the vascular and cork cambia promote increase in girth and intercalary meristems found at nodes and bases of leaf blades promote increase in length. d. Apical meristems found in the tip of stems and roots promote growth by elongation; lateral meristems found in the vascular and cork cambia promote increase in length and intercalary meristems found at nodes and bases of leaf blades promote increase in length.
Students observe several slides of tissue cross-sections under the microscope. They are asked to develop a key system to classify the slides as coming from either monocot or dicots. What key system should the students develop? a. In monocots, the vascular bundles form a distinct ring. In dicots, the vascular bundles are scattered in the ground tissue. b. In monocots, the vascular tissue forms a characteristic X shape in the center. In dicots, the phloem and xylem cells are scattered in the pith. c. In monocots, the vascular bundles are scattered in the ground tissue. In dicots the vascular bundles form a distinct ring. d. In monocot roots, the pith is absent or very small. In dicots, the pith is large and well developed.
A botanist compares the number of stomata between two plants. One plant, a eucalyptus, has stomata equally distributed on both sides of the leaf. The other plant has most of its stomata on the underside of the leaf. What does the positioning of the stomata indicate about which leaf surfaces on the two plants receive light in their natural environment? a. The first plant receives light only on the upper surface of the leaves whereas the leaves of the second plant are equally exposed to sunlight. b. The first plant receives light only on the lower surface whereas the second plant receives light only on the upper surface. c. The first plant receives light only on the upper surface whereas the second plant receives light only on the lower surface. d. The first plant has leaves that are equally exposed to sunlight whereas the second plant receives light only on the upper surface.
The process of bulk flow transports fluids in a plant. What are the two main bulk flow processes? a. Movement of water up the xylem and movement of solutes up and down the phloem b. Movement of water up the phloem and movement of solutes up and down the xylem. c. Movement of water up and down the xylem and movement of solutes up the phloem d. Movement of solutes up the xylem and movement of water up and down the phloem
Some desert plants have taproots that extend up to 20-30 feet underground. Others have fibrous root systems that cover wide areas. What are the advantages of a deep taproot and the advantages of a fibrous root system in a desert? a. A deep taproot can reach the deeper soil regions that stay moist after several rainfalls. A shallow fibrous system provides additional support to anchor the plant in the desert. b. A deep taproot provides additional support to anchor the plant in the desert. A shallow fibrous system increases the amount of water that can be absorbed after a light rainfall when the soil dries quickly in the desert. c. A deep taproot increases the amount of water that can be absorbed after a light rainfall when the soil dries quickly in the desert. A shallow fibrous system can reach the deeper soil regions that stay moist after several rainfalls. d. A deep taproot can reach the deeper soil regions that stay moist after several rainfalls. A shallow fibrous system increases the amount of water that can be absorbed after a light rainfall when the soil dries quickly in the desert.
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