Chapter 30

Question 1

In spruces and pines, which of the following is an advantage of having needlelike leaves?
A) increased surface area, increasing photosynthesis
B) increased surface area, increasing gas exchange
C) decreased surface area, reducing gas exchange
D) decreased surface area, reducing water loss

Answer 1

D) decreased surface area, reducing water loss

Question 2

Within a gymnosperm megasporangium, which of the following develops before the others after fertilization occurs?
A) megaspore
B) sporophyte embryo
C) egg cell
D) female gametophyte

Answer 2

A) megaspore

Question 3

Which of the following generations in the conifer life cycle most directly produces the integument of a pine seed?
A) male gametophyte
B) female gametophyte
C) male sporophyte
D) female sporophyte

Answer 3

D) female sporophyte

Question 4

In onions (Allium), cells of the sporophyte have 16 chromosomes within each nucleus. How many chromosomes should be in an endosperm nucleus?
A) 8
B) 16
C) 24
D) 32

Answer 4

C) 24

Question 5

Which of the following structures directly produces the fruit of angiosperms?
A) male gametophyte
B) female gametophyte
C) male sporophyte
D) female sporophyte

Answer 5

D) female sporophyte

Question 6

In addition to seeds, which of the following characteristics is unique to seed-producing plants?

Answer 6

Pollen

Question 7

One day, you go outside and see that the cars on the street are covered in a yellow “dust.” Which of the following statements can be correctly applied to this “dust”?

Answer 7

The dust is pine pollen and is so abundant because the pines are wind-pollinated.

Question 8

Which of the following functions is an advantage of seeds compared to spores?

Answer 8

containing a nutrient store for a developing sporophyte