Sexual Reproduction of Flowering Plants

Question 1

What is the function of the sepal?

Answer 1

To protect the flower when it is a bud.

Question 2

What is the function of the petals?

Answer 2

To attract insects to the flower for pollination

Question 3

What is the function of the stamen?

Answer 3

The male part of the plant

Question 4

The anther is a part on the stamen, what is the purpose of the anther.

Answer 4

Produces pollen grains by meiosis.

Question 5

The filament is a part on the stamen, what is the purpose of the filament?

Answer 5

Holds the anther in place

Question 6

What is the function of the carpel?

Answer 6

The female part of the flower

Question 7

The stigma is a part of the carpel, what is its function?

Answer 7

Where pollen lands after pollination

Question 8

The style is a part of the carpel, what is its function?

Answer 8

Pollen travels down this in a pollen tube

Question 9

The ovary is a part of the carpel, what is its function?

Answer 9

Contains ovules

Question 10

How do male sex cells form?

Answer 10

• Diploid cells in the anther divide by meiosis to produce haploid pollen grains
• Each pollen grain divides by mitosis to form the male sex cells

Question 11

How many pollen sacs does the anther contain?

Answer 11

Four

Question 12

How is each pollen sack protected?

Answer 12

Are enclosed by a protective epidermis and fibrous layer

Question 13

What is the tapetum?

Answer 13

Is a nutrient rich layer of cells

Question 14

How do female gamete cells form?

Answer 14

• One diploid cell in the ovule divides by meiosis to form a single haploid cell called the embryo sac
• This cell divides by mitosis 3 times to form 8 haploid nuclei
• Five nuclei die off
• The egg cell and two polar nuclei remain