Production Of Female Gametes

Question 1

What is the first cell called?

Answer 1

Megaspore

Question 2

What process does the megaspore undergo to make how many cells?

Answer 2

Meiosis 1 & 2 to form 4 cells

Question 3

How many cells are you left with after meiosis 1 & 2? Why?

Answer 3

1, 3 of them degenerate

Question 4

What does that 1 cell left undergo? How many times? What are you left with at the end?

Answer 4

Mitosis. 3 times to form a cell which has 8 haploid nuclei

Question 5

What is the cell with 8 haploid nuclei called?

Answer 5

Mature embryo sac

Question 6

How do you know where the ovum is?

Answer 6

Closest to the micropyle

Question 7

What are the cells called in the mature embryo sac and there is 2 of them?

Answer 7

2 synergids

Question 8

What are the cells called in the mature embryo sac and there is 3 of them?

Answer 8

3 antipodal cells

Question 9

What is in the middle of the mature embryo sac?

Answer 9

2 polar nuclei

Question 10

Where are female gametes produced?

Answer 10

Formed in ovule of the ovary in the carpel

Question 11

What is the funicle?

Answer 11

Stalk attaching ovule to the ovary

Question 12

What does the nucellus do?

Answer 12

Provides nutrients

Question 13

What are the outer surface called of the ovule?

Answer 13

Integuments

Question 14

What does the 1 cell undergo to form what?

Answer 14

3x mitosis to form mature embryo sac with 8 haploid nuclei