Test 2 Review Questions -- Bryophytes

Question 1

What develops from a liverwort spore?

Answer 1

Protonema

Question 1

In liverworts, what does the protonema develop into?

Answer 1

Gametophyte

Question 2

What is the ploidy of a liverwort gametophyte?

Answer 2

Haploid

Question 3

Thalloid

Answer 3

type of body plan where the organism is flat without “leafy” structures

Question 4

What are the two kinds of liverworts?

Answer 4

Thalloid, leafy

Question 5

Gametangia

Answer 5

Gamete-producing structures in bryophytes

Question 6

Antheridia

Answer 6

Structure in bryophytes that produces male gametes

Question 7

Archegonia

Answer 7

Structure in bryophytes that produces female gametes

Question 8

How are the sporophytes of liverworts, mosses, and hornworts similar?

Answer 8

• Diploid
• Develop from fertilized egg
• Produce spores by meiosis
• DEPENDENT ON GAMETOPHYTE (not free-living)

Question 9

What are the differences between the sporophytes of liverworts, mosses, and hornworts?

Answer 9

Liverworts: simple, short-lived

Mosses: have stomata, more elaborate (have structures like peristome teeth, hydroids, leptoids), longer-lived, some have photosynthetic capacity

Hornworts: longest-lived, have stomata, hydroids and leptoids; have some photosynthetic capability

Question 10

Are there stomata in bryophytes?

Answer 10

Yes, in mosses and hornworts

Question 11

Where are stomata in bryophytes located?

Answer 11

Sporophyte

Question 12

What is the function of rhizoids in bryophytes?

Answer 12

• Anchorage
• Potentially assist with absorption

Question 13

What provides protection and nutrition for sporophyte in bryophytes?

Answer 13

Gametophyte