CHPT 29: Seedless Plants

Question 1

What are some plant structures?

Answer 1

Stomata-allow gas transfer

Tracheids- allow movement of water and minerals

Cuticle- prevents desiccation

Question 2

Which of the following genera most likely directly gave rise to the land plants?

Answer 2

Chara

Question 3

Which of the will not be found in bryophytes?

Answer 3

Tracheid cells

Question 4

Which would be found in bryophytes?

Answer 4

Mycorrhizal associations
Rhizoids
Photosynthetic gametophytes

Question 5

What is correct statement of bryophytes?

Answer 5

archegonium and antheridium represent haploid structures that produce reproductive cells

Question 6

What are evolutionary innovations that increase desiccation tolerance?

Answer 6

waxy cuticles

Question 7

What is a correct statement of pterophytes?

Answer 7

all pterophytes have a dominant sporophyte generation

Question 8

What happens to a spore mother cell as it gives rise to a spore with what happens to a spore as it fives rise to a gametophyte?

Answer 8

The spore mother cell goes through meiosis and the spore goes through mitosis

Question 9

How could a plant without roots obtain sufficient nutrients from the soil?

Answer 9

Mycorrhizal fungi associate with the plant assist with the transfer of nutrients

Question 10

How is a moss embryo protected from desiccation?

Answer 10

by the archegonium

Question 11

In comparing the Selaginella and Physcomitrella genomes, you would expect to find that

Answer 11

some of the novel genes in selaginella encode proteins necessary for tracheid development

Question 12

What evolutionary trend is seen in seedless land plants?

Answer 12

there id increased protection of the sporophyte generation in its early developmental stages