Standardized Test Prep

Multiple Choice

1. Which of the following cell types is NOT found in a plant's vascular tissue?

   1. tracheid

   2. vessel element

   3. guard cell

   4. companion cell

2. Where in a plant does mitosis produce new cells?

   1. meristems

   2. chloroplasts

   3. mesophyll

   4. heartwood

3. Which tissues make up tree bark?

   1. phloem

   2. cork

   3. cork cambium

   4. all of the above

4. Which is NOT a factor in the movement of water through a plant's vascular tissues?

   1. transpiration

   2. capillary action

   3. osmotic pressure

   4. meristems

5. All of the following conduct fluids in a plant EXCEPT

   1. heartwood.

   2. sapwood.

   3. phloem.

   4. xylem.

6. Where does most of the photosynthesis occur in a plant?

   1. stomata

   2. guard cells

   3. vascular cambium

   4. mesophyll tissue

7. Which of the following structures prevents the backflow of water into the root cortex?

   1. palisade mesophyll

   2. root cap

   3. cambium

   4. Casparian strip

8. Which of the following plants has a fibrous root system?

   1. dandelion

   2. beet

   3. radish

   4. grass

Questions 9–10

A student compared the average number of stomata on the top side and the underside of the leaves of different plants. Her data are summarized in the table below.

d

9. What generalization can be made based on the data?

   1. All plants have more stomata on the top side of their leaves than on the bottom side.

   2. Plants have fewer stomata on the top side of their leaves than on the bottom side.

   3. Some plants have more stomata on the top side of their leaves than on the bottom side.

   4. The number of stomata is the same from plant to plant.

10. Pumpkins, tomatoes, and beans all grow in direct sunlight. Assuming the plants receive plenty of water, stomata on the lower surface of their leaves

    1. are always closed.

    2. are usually clogged with dust.

    3. are unlikely to close at night.

    4. stay open during daylight hours.

Open-Ended Response

11. Contrast the functions of xylem and phloem.

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