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Microsporogenesis and pollen grains

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

---------- tissue is responsible for producing pollen grains in microsporangia.

a)

Endothecium

b)

Tapetum

c)

Epidermis

d)

Sporogenous tissue

2.

Mature pollen grain consists of vegetative cell and generative cell.

a)

True

b)

False

3.

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

a)

Microsporogenesis

b)

Megasporogenesis

4.

Each pollen mother cell (2n) divides through meiosis to produce 4 haploid cells called ------------

a)

Macrospores

b)

Microspores

c)

Megaspores

5.

Male reproductive whorl of flower is ----------

a)

Calyx

b)

Androecium

c)

Gynoecium

d)

Corolla

6.

Inner wall layer of pollen grain , intine consists of --------

a)

pectin

b)

cellulose and pectin

c)

Sporopollenin

d)

cellulose

7.

State the ploidy of pollen grain

a)

Haploid

b)

Diploid

c)

Triploid

d)

Tetraploid

8.

Innermost wall layer of a microsporangium in an anther is ----------

a)

Epidermis

b)

Middle layers

c)

Tapetum

d)

Endothecium

9.

Anther lobe having two theca are --------

a)

Bilobed

b)

Monothecous

c)

Dithecous

d)

Apocarpous

10.

The chemical substance present in pollen is resistant to strong acid,alkali and high temperature is -----------------

a)

Lignin

b)

Pectin

c)

Cellulose

d)

Sporopollenin

11.

Identify the figure

a)

Carpel

b)

Stamen

c)

Pistil

d)

Calyx

12.

Label the part A

a)

Pollen grain

b)

Tapetum

c)

Connective

d)

Stomium