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SEXUAL REPRODUCTION IN FLOWERING PLANTS 2

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Choose the correct characteristics of cells of tapetum from the following:

a)

Dense cytoplasm

b)

Multi-nucleate

c)

Large sized Vacuole

d)

Thick Cell Wall

2.

The process of formation of microspores from a pollen mother cell (PMC) through meiosis is called

(a)  

3.

The cell that gives rise to male gametes in the pollen grain is

a)

Vegetative Cell

b)

Generative Cell

4.

Total number of microsporangia present in a dithecous anther are

a)

4

b)

6

c)

2

d)

1

5.

___________ tissue is responsible for producing pollen grains in microsporangia.

a)

Endothecium

b)

Tapetum

c)

Epidermis

d)

Sporogenous

6.

The exine is made up of

(a)  

7.

The ploidy of generative cell in a pollen grain is

a)

haploid

b)

diploid

c)

triploid

d)

tetraploid

8.

Process in which seeds develop unfertilised female gamete

a)

Polyembryony

b)

Agamospermy

c)

Apomixis

d)

Parthenogenesis

9.

The male reproductive part is known as ........................

a)

Pistil

b)

Stamen

c)

Petal

d)

Carpel

10.

A complete pollen grain consists of ........................................

a)

Tube nucleus only

b)

Generative nucleus only

c)

Tube nucleus and generative nucleus

d)

Male gametes

11.

How many male gamete are formed in one pollen grain?

a)

2

b)

4

c)

6

d)

8

12.

Which nucleus responsibles in the formation of pollen tube from the pollen grain?

a)

Generative nucleus

b)

Tube nucleus

c)

Polar nuclei

d)

Triploid nuclei

13.

Which one of the following statement is correct:

a)

Hard outer layer of pollen grain is called intine.

b)

Sporogenous tissue is haploid

c)

Endothecium produces microspores

d)

Tapetum nourishes the developing pollen.

14.

The major cause of pollen allergy is due to

a)

Pistia

b)

Cladophora

c)

Parhenium

d)

Mirabilis

15.

Pollen viability for rice and wheat plant is

a)

30 hours

b)

3 months

c)

30 minutes

d)

30 seconds

16.

What is incorrect for generative cell?

a)

Floats in cytoplasm of vegetative cell

b)

Having abundant food reserve

c)

Spindle shaped

d)

Has dense cytoplasm and a nucleus

17.

The process of the pollen fusing with the ovule is called ________________.

a)

pollination

b)

fertilisation

c)

germination

d)

reproduction

18.

Number of germ pores in dicots are

a)

1

b)

2

c)

3

d)

4

19.

Pollen grains germinates

a)

in anther

b)

in ovary

c)

on stamen

d)

on stigma

20.

Pollen tube is produced by

a)

Exine

b)

Intine

c)

Both exine & intine

d)

Generative cell

e)

Sporopollenin