Chapter 21:
Transport
Practice Test
1.
What process pulls water up from the roots of a plant and out through leaf stomata?
a.
photosynthesis
b.
transpiration
c.
adhesion
d.
cohesion
Hint
2.
What is the tissue in a plant that transports sugars formed during photosynthesis to other parts of the plant?
a.
phloem
b.
vessels
c.
xylem
d.
cortex
Hint
3.
What are the smallest vessels of an animal's circulatory system in which exchange of materials takes place directly between blood and cells?
a.
sieve tubes
b.
capillaries
c.
arteries
d.
veins
Hint
4.
How are materials distributed within a unicellular organism?
a.
through open-ended, hollow tubes
b.
through transport vessels
c.
by osmosis only
d.
by diffusion and cytoplasmic streaming
Hint
5.
What large blood vessels transport blood back to the heart?
a.
sieve tubes
b.
arteries
c.
capillaries
d.
veins
Hint
6.
Where are red and white blood cells made in the body?
a.
in the heart
b.
in lymph nodes
c.
in bone marrow
d.
at the sinoatrial node
Hint
7.
What large blood vessels transport blood away from the heart?
a.
sieve tubes
b.
veins
c.
arteries
d.
capillaries
Hint
8.
What component of blood is important in healing wounds on the skin?
a.
red blood cells
b.
platelets
c.
urea
d.
white blood cells
Hint
9.
What controls the opening and closing of stomata in a leaf?
a.
sieve cells
b.
cohesion
c.
guard cells
d.
adhesion
Hint
10.
What are the openings in the epidermis of leaves that allow gas exchange in plants?
a.
sieve cells
b.
cambium
c.
cortex
d.
stomata
Hint
