Chapter 9

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Which of the following is considered a stem? a. potato c. cabbage b. sweet potato d. carrot For questions

a. potato

Which of these is an incorrect contrast between monocots (stated first) and eudicots (stated second)? a. one cotyledon—two cotyledons b. leaf veins parallel—net veined c. vascular bundles in a ring—vascular bundles scattered d. flower parts in threes—flower parts in fours or fives e. All of these are correct contrasts.

c. vascular bundles in a ring—vascular bundles scattered

Root hairs are found in the zone of a. cell division. d. apical meristem. b. elongation. e. All of these are correct. c. maturation.

c. maturation.

Insect-eating plants are common in regions where _____ is in limited supply. a. water c. nitrogen b. CO 2 d. oxygen

c. nitrogen

Which of these cells in a plant is apt to be nonliving? a. parenchyma b. collenchyma c. sclerenchyma d. epidermal e. guard cells

c. sclerenchyma

Major constituent of ground tissue:

parenchym cell

In a cross section of which of the following structures would you find scattered vascular bundles? a. monocot root c. eudicot root b. monocot stem d. eudicot stem

b. monocot stem

_____ forms the outer protective covering of a plant. a. Ground tissue b. Root tissue c. Epidermal tissue d. Vascular tissue

c. Epidermal tissue

Annual rings are the number of a. internodes in a stem. b. rings of vascular bundles in a monocot stem. c. layers of xylem in a stem. d. bark layers in a woody stem. e. Both b and c are correct.

c. layers of xylem in a stem.

Stomata are open when a. guard cells are filled with water. b. potassium ions move into the guard cells. c. turgor pressure increases. d. All of these are correct

d. All of these are correct

What role do cohesion and adhesion play in xylem transport? a. Like transpiration, they create a tension. b. Like root pressure, they create a positive pressure. c. Like sugars, they cause water to enter xylem. d. They create a continuous water column in xylem.

d. They create a continuous water column in xylem.

The sugar produced by mature leaves moves into sieve tubes by way of _____, while water follows by _____. a. osmosis, osmosis b. active transport, active transport c. osmosis, active transport d. active transport, osmosis

d. active transport, osmosis

Region where leaves attach to stem:

node

Opens when transpiration occurs:

stoma

Contains tracheids:

xylem


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