Chapter 30

Question 1

T or F? Meiosis produces spores that are haploid.

Answer 1

True

Question 2

T or F? Spores develop into the gametophyte generation.

Answer 2

True

Question 3

T or F? The gametophyte produces eggs and sperm.

Answer 3

True

Question 4

T or F? When the sperm fertilizes the egg, a zygote results that develops into the sporophyte.

Answer 4

True

Question 5

T or F? The sporophyte generation produces gametes by mitosis in structures called sporangia.

Answer 5

False

Question 6

sequence of the life cycle of alternation of generations

Answer 6

gametophyte → gametes → zygote → sporophyte → spores

Question 7

A major evolutionary trend among plants is

Answer 7

a reduction in the size of the gametophyte and an increase in the size of the sporophyte.

Question 8

significant events in the evolution of plants

Answer 8

protection of the embryo, evolution of vascular tissue, evolution of the seed, evolution of the flower

Question 9

In the moss life cycle, the ______ generation is dominant.

Answer 9

haploid gametophyte

Question 10

Which life cycle phase is diploid in moss?

Answer 10

sporophyte generation

Question 11

Haploid spores are produced in the ___ of a moss.

Answer 11

sporangium

Question 12

Which of the following is a nonvascular plant that has the longest evolutionary history on land?

A. ferns
B. bristlecone pine tree
C. moss
D. redwood tree

Answer 12

C. moss

Question 13

characteristics of a fern

Answer 13

• Fern sporophyte is the dominant generation in the fern life cycle.
• Fern sporophyte leaves first appear in a curled-up form termed a fiddlehead.
• Fern sporophyte is vascular.

Question 14

T or F? Ferns are quite small since they lack vascular tissue

Answer 14

False

Question 15

In the life cycle of a fern, the zygote

Answer 15

becomes the sporophyte generation.

Question 16

In the fern life cycle, the ______ generation is dominant.

Answer 16

diploid sporophyte

Question 17

T or F? The sporophyte stage in ferns lacks vascular tissue.

Answer 17

False

Question 18

The reproductive parts of an angiosperm are the

Answer 18

carpel and stamen

Question 19

During pollination in angiosperms, pollen grains will stick to the enlarged knob in the center of the flower called the

Answer 19

stigma

Question 20

Ovules are contained within the

Answer 20

ovary

Question 21

The stigma, style, and ovary are located in a

Answer 21

carpel

Question 22

The site of formation of pollen grains is in the

Answer 22

stamen

Question 23

Botanically, a seed is a structure developed from a(n)

Answer 23

ovule

Question 24

A plant that makes seeds but not flowers would be

Answer 24

a pine tree

Question 25

Put these in the order in which they occurred over evolutionary time.

Answer 25

1. Evolution of the Embryo 2. Evolution of Vascular Tissue 3. Evolution of the Seed 4. Evolution of the Flower