NEET -Multiple Choice question: Structure of Anther,Stamen and Microsporangia

Structure of Stamen,  Anther  and  Microsporangia 

1.Which of the following statement is not correct.

A. Stamen is represented by the androcoium.

B. Stamen has three part - Thalamus, Anther and filament.

C. Anther is involved in formation of pollen grain.

D. The number and length of stamens are variable in species to species.            Answer : B Explanation

2. Which of the following characterstic is correspondence to Anther. 

A. Anther is bilobed and Monothecous.

B. Each lobe of  Anther has  two theca and two microsporangia.

C. A longitudinal groove runs alongside  with the anther and form two lobe.

D. When  anther is young,it is made up of nucellus.                  Answer : B Explanation

3. Which of the following term is/are   related to the anther.

A.Tetragonal 

B. Bilobed 

C. Dithecous    

D. All of the above .

Answer : D Explanation

4. A lobe of anther has two microsporangia. Arrange the layers or wall of microsporangia starts from inner most layer tapetum.

A. Middle layer - endothecium - Epidermis.

B. Endothecoum- Middle layer - Epidermis

C. Epidermis - Middle layer - Endothecium.

D. Middle layer - Epidermis - Endothecium.

Answer : A Explanation

5. Consider the following statement and select the correct code:

1. Tapetum is involved to provide nourishment for developing pollen grain.

2. Cells of tapetum in rich in cytoplasm and with  multiple nuclei.

A. Only 1    B. Only 2

C. Both 1 and  2 

D. Neither 1 nor 2

Answer : C Explanation

6. Which one of the following layer of microsporangia is not  involved in protection and  help in dehisence of Anther.

A.Tapetum 

B. Epidermis

C. Endothecium 

D. Middle layer

Answer : A Explanation

6. Which one of the following layer of microsporangia is  involved in protection of pollen grain  and  help in dehisence of Anther.

A. Epidermis

B. Endothecium

C. Middle layer 

D. All of the above

Answer : D Explanation 

7.Which of the following statement is not correct.

A.  Microsporangia is surrounded  by the three layers of wall.

B. Microsporangia is furthur developed into pollen sac.

C. Endothecium is third most layer from outside.

D. There are  micro sporangia in each lobe of anther.

Answer : A Explanation

8. Identify the Letter 'S' in the given Diagram.

A. Microspore 

B. Microspore mother cell

C. Tapetum

D. Anther wall

Answer : B 

9. Identify the Letter 'a and ' c' in the given Diagram.

A. Connectives & Epidermis

B. Endothecium & Sporogenous tissue. 

C. Connectives & Sporogenous tissue. 

D. Endothecium & Epidermis

Answer : C

10. Consider the following statement and select the correct code :

1. Each lobe of anther has two theca.

2. Except tapetum, all layer of microsporangia are  only involved in dehiscence of anther.

3. Cells of tapetum are mononucleated.

 A. 1, 2 and 3.

 B. 2 and 3 

 C. 1 only 

 D. 1 and 3.

Answer : C Explanation