Chapter 29 - Plant Diversity I

Question 1

What are the three most important shared characteristics between plants and green algae?

Answer 1

Rings of cellulose-synthesizing proteins
Flagellated sperm
Formation of a Phragmoplast

Question 2

What is a Phragmoplast?

Answer 2

Scaffolding for / precursor to cell wall in plant cell division; forms along center plane of dividing cell

Question 3

What’s an apical meristem?

Answer 3

Zone of growth in plants

Question 4

What is the plant cuticle?

Answer 4

Shiny, waxy material seen on plant leaves; form of water proofing; reduces evaporation

Question 5

What are stomata?

Answer 5

Very small pores on leaves and stem to allow for CO2 intake and oxygen output

Question 6

What are Mycorrhizae?

Answer 6

They are the Mutualistic associations between plant roots and fungi

Question 7

What are Antheridia?

Answer 7

The male sex organ in the gametophyte stage that produces sperm.

Question 8

What are Archegonia?

Answer 8

The female sex organ in the gametophyte stage that produces eggs and fosters the growth of the sporophyte stage.

Question 9

Which stage has a haploid genome?

Answer 9

Gametophyte

Question 10

Which stage has a diploid genome?

Answer 10

Sporophyte

Question 11

What is a Zygote?

Answer 11

A fertilized egg

Question 12

What is an Embryo?

Answer 12

A young sporophyte

Question 13

What are placental transfer cells?

Answer 13

Differentiated cells from the Archegonium that facilitate the transfer of nutrients from the gametophyte organism to the new sporophyte.

Question 14

What are sporangia?

Answer 14

Cup shape structure that produces spores

Question 15

What are the cells that produce spores called?

Answer 15

Sporocytes

Question 16

What is a spore?

Answer 16

a haploid reproductive cell that can develop into a new organism (gametophyte) without fusing with another cell. Basically, the spore leads to the gametophyte stage.

Question 17

What is the spore cell wall made out of?

Answer 17

Sporopollenin