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PRE-LAB EXPERIMENT 5 (POLLEN GERMINATION)

Total questions: 6

Worksheet time: 6mins

Name
Class
Date
1.

Double fertilization is a _______X_______ between one sperm cell (n) with an egg cell (n) to form __________Y________ . The other sperm cell (n) fuses with two polar nuclei to form __________Z________ .

a)

X = fusion; Y = haploid zygote(n); Z = diploid endosperm (2n)

b)

X = fusion; Y = diploid zygote (2n); triploid endosperm (3N)

c)

X = diffusion; Y = haploid zygote(n); Z = diploid endosperm (2n)

d)

X = diffusion; Y = diploid zygote (2n); triploid endosperm (3N)

2.

List the female reproductive ORGANS in plant.

a)

ovary

b)

style

c)

stigma

d)

stamen

3.

The male reproductive ORGANS in plant are anther and (a)   .

4.

This figure shows a mature pollen grain. Name parts A, B and C.

a)

A = pit; B = pollen tube nucleus; C = generative nucleus

b)

A = pollen tube nucleus; B = generative nucleus; C = pit

c)

A = generative nucleus; B = pollen tube nucleus; C = pit

5.

The generative nucleus divides by mitosis to form two male gametes.

a)

Yes, it is.

b)

No, it isn't.

6.

After a pollen grain lands on a compatible stigma, a pollen tube nucleus is stimulated to germinate and then a pollen tube grows.

a)

Yes, it is.

b)

No, it isn't.