Angiosperm Life Cycle

Question 1

Sporophytes are ________ plants that produce ________ gametophytes

Answer 1

Diploid

Haploid

Question 2

Gametophytes are ________ plants that produce gametes (sperm and eggs).

Answer 2

Haploid

Question 3

(Sporophytes/Gametophytes) are the visible generation.

Answer 3

Sporophytes

Question 4

What obscures the development of gametophytes?

Answer 4

Protective tissue

Question 5

What is meiosis?

Answer 5

Halving of the diploid number

Question 6

What is fertilization?

Answer 6

Restoring the diploid number

Question 7

What is the male gametophyte?

Answer 7

Pollen grain

Question 8

What is the female gametophyte?

Answer 8

Embryo sac

Question 9

Where does pollination take place?

Answer 9

Stigma of the pistil

Question 10

Where does fertilization take place?

Answer 10

Ovary

Question 11

Which occurs first… pollination or fertilization?

Answer 11

Pollination then fertilization

Question 12

How many sperm does the pollen tube discharge into female gametophyte?

Answer 12

2

Question 13

What is the role of endosperm?

Answer 13

Provide food for the seed

Question 14

Where do the 2 sperm go when discharged into female gametophyte?

Answer 14

1. One sperm fuses with an egg to create a zygote

2. One sperm fuses with 2 polar nuclei to create endosperm

Question 15

What is the (n) for a endosperm? (n, 2n, or 3n)

Answer 15

3n

Question 16

What are some examples of endosperm?

Answer 16

Rice, wheat, maize, rye, oats, barley

Question 17

What is the more dominate type of generation?

Answer 17

Sporophyte

Question 18

What is the make up of a mature seed?

Answer 18

Embryo (diploid number)
Food (endosperm)
Protective layers