Chapter 26 - Plant Nutrition And Transport

Question 1

Carbon, hydrogen, and oxygen are __________ for plants.

a. macronutrients
b. micronutrients
c. trace elements
d. requires elements
e. both a and d

Answer 1

e. both a and d

Question 2

Decomposing matter of soil is called _________.

a. loam
b. humus
c. topsoil
d. nutrients

Answer 2

b. humus

Question 3

A _______ strip between abutting endodermal cell walls forces water and solutes to move through these cells rather than around them.

a. cutin
b. Casparian
c. cohesion
d. cellulose

Answer 3

b. Casparian

Question 4

The nutrition of some plants depends on a mutually beneficial association between a root and a fungus. The association is known as a ____________.

a. root nodule
b. mycorrhiza
c. root hair
d. root hypha

Answer 4

b. mycorrhiza

Question 5

A vascular cylinder consists of cells of the __________.

a. exodermis
b. endodermis
c. root cortex
d. xylem and phloem
e. b and d
f. all of the above

Answer 5

e. b and d

Question 6

Water evaporation from plant parts is called ________.

a. translocation
b. expiration
c. transpiration
d. tension

Answer 6

c. transpiration

Question 7

Water transport from roots to leaves occurs mainly because of __________.

a. pressure flow
b. differences in source and sink solute concentrations
c. the pumping force of xylem vessels
d. transpiration, tension, and cohesion of water
e. a and b

Answer 7

d. transpiration, tension, and cohesion of water

Question 8

A waxy cuticle is secreted by __________.

a. ground tissue
b. epidermal cells
c. a atoms
d. root hairs

Answer 8

b. epidermal cells

Question 9

When guard cells swell, ____________.

a. transpiration ceases
b. sugars enter phloem
c. a stoma opens
d. root cells die

Answer 9

c. a stoma opens

Question 10

Stomata open in response to light when ____________.

a. guard cells pump ions into their cytoplasm
b. guard cells pump ions out of their cytoplasm
c. water evaporates out of guard cells

Answer 10

a. guard cells pump ions into their cytoplasm

Question 11

Tracheids are part of __________.

a. cortex
b. mesophyll
c. phloem
d. xylem

Answer 11

d. xylem

Question 12

Sieve tubes are part of ________.

a. cortex
b. mesophyll
c. phloem
d. xylem

Answer 12

c. phloem

Question 13

When soil is dry, guard cells respond to __________ by collapsing agains one another, so stomata close.

a. air temperature
b. low humidity
c. abscisic acid
d. oxygen

Answer 13

c. abscisic acid

Question 14

Transport of photosynthetically produced sugars from leaves to roots occurs by ____________.

a. pressure flow
b. differences in source and sink solute concentrations
c. the pumping force of xylem vessels
d. transpiration, tension, and cohesion water
e. a and b

Answer 14

e. a and b

Question 15

Match the concepts of plant nutrition and transport.

\_\_\_ stomata
\_\_\_ nutrient
\_\_\_ sink
\_\_\_ root system
\_\_\_ hydrogen bonds
\_\_\_ transpiration 
\_\_\_ translocation 

a. evaporation
b. harvest soil water and nutrients
c. balance water loss with gas exchange
d. cohesion in water transport
e. sugars unloaded from sieve tubes
f. organic compounds distributed through the plant body
g. requires element

Answer 15

Match the concepts of plant nutrition and transport.

(c) stomata
(g) nutrient
(e) sink
(b) root system
(d) hydrogen bonds
(a) transpiration
(f) translocation

a. evaporation
b. harvest soil water and nutrients
c. balance water loss with gas exchange
d. cohesion in water transport
e. sugars unloaded from sieve tubes
f. organic compounds distributed through the plant body
g. requires element