Chapter 25 - Plant Tissue

Question 1

Roots and shoots lengthen through activity at _____________.

a. apical meristems
b. lateral meristems
c. vascular cambium
d. cork cambium

Answer 1

a. apical meristems

Question 2

In many plant species, older roots and stems thicken by activity at ____________.

a. apical meristems
b. cork cambium
c. vascular cambium
d. both b and c

Answer 2

d. both b and c

Question 3

_____________ conducts water and minerals through a plant, and __________ conducts sugars.

a. Phloem; xylem
b. Cambium; phloem
c. Xylem; phloem
d. Xylem; cambium

Answer 3

c. Xylem; phloem

Question 4

Mesophyll consists of ____________.

a. waxes and cutin
b. lignified cell walls
c. photosynthetic cells
d. cork but no bark

Answer 4

c. photosynthetic cells

Question 5

Which of the following cell types are alive in mature tissue? Choose all that apply.

a. collenchyma
b. sieve tubes
c. vessel members
d. tracheids
e. companion cells
f. sclerenchyma

Answer 5

a. collenchyma cells
b. sieve tubes
e. companion cells

Question 6

In phloem, organic compounds flow through _____________.

a. collenchyma
b. sieve tubes
c. vessels
d. tracheids

Answer 6

b. sieve tubes

Question 7

Xylem and phloem are __________ tissues

a. ground
b. vascular
c. dermal
d. both b and c

Answer 7

b. vascular

Question 8

Tree rings occur when ___________.

a. there are droughts during the time the rings form
b. environmental conditions influence xylem cell size
c. heartwood alternates with sapwood

Answer 8

b. environmental conditions influence xylem cell size

Question 9

Bark is mainly ______________.

a. periderm and cork
b. cork and wood
c. periderm and phloem
d. cork cambium and phloem

Answer 9

c. periderm and phloem

Question 10

Match the plant parts with the best description.

\_\_\_ apical meristem 
\_\_\_ lateral meristem 
\_\_\_ xylem
\_\_\_ phloem
\_\_\_ vascular cylinder 
\_\_\_ wood

a. secondary growth
b. source of primary growth
c. distribution of sugars
d. source of secondary growth
e. distribution of water
f. central column of roots

Answer 10

Match the plant parts with the best description.

(b) apical meristem
(d) lateral meristem
(e) xylem
(c) phloem
(f) vascular cylinder
(a) wood

a. secondary growth
b. source of primary growth
c. distribution of sugars
d. source of secondary growth
e. distribution of water
f. central column of roots