1) The trap of a carnivorous plant such as the Venus flytrap is what plant structure?

A) stem

B) leaf

C) fruit

D) flower

2) Which kind of root system consists of a large central root and numerous lateral roots?

A) fibrous

B) taproot

C) needle-like

D) spinous

A) needle-like points for drilling through hard or rocky soil.

B) ability to produce new taproots.

C) underground asexual reproduction.

D) greatly increasing absorptive surface area.

4) About 90 percent of water absorbed through roots is lost to the atmosphere due to the process of:

A) transpiration.

B) expiration.

C) perspiration.

D) photosynthesis.

5) The structure that attaches a leaf to the rest of the plant is the:

A) blade.

B) stoma.

C) petiole.

D) stem.

6) Mesophyll cells are primarily responsible for:

A) transport of water.

B) protection of a leaf.

C) regulating passage of carbon dioxide into the leaf.

D) photosynthesis.

7) Guard cells are responsible for:

A) transport of water and minerals.

B) protection of a leaf.

C) regulating passage of carbon dioxide into the leaf.

D) photosynthesis.

8) The outer portion of the “ground tissue” of a stem is referred to as its:

A) cortex.

B) pith.

C) sepal.

D) mesophyll.

9) Sepals are:

A) pollen-producing structures.

B) leaf-like structures that protect a flower before it opens.

C) pollen receptacles on a carpel.

D) insect-attracting structures of the flower.

10) In both monocotyledons and dicotyledons, a cotyledon is a(n):

A) type of seed.

B) type of flower.

C) embryonic root.

D) embryonic leaf.