NEET -Multiple Choice question: Structure of Anther,Stamen and Microsporangia
1.Which of the following statement is not correct.
A. Stamen is represented by the androecium.
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 correct with correspondence to Anther.
A. Anther is bilobed and Mono thecous.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. Di thecous
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.
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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
11. Staminode is
A. Bilobed stamen
B. Sterile stamen
C. Fertile stamen
D. Multiple stamen
Answer : B Explanation
12. Consider the following statement and select the correct code :
1. When stamens are free in flower called as polyandrous.
2. Stamens can be fused with each other or with the petal.
3. A sterile stamen or stamen is not capable to produce pollen grain
A. 1, 2 and 3.
B. 2 and 3
C. 1 only
D. 1 and 3.
Answer : A Explanation
14. Epipetalous condition refer to fuse of stamen with the petal in
A. Mustard B. Brinjal
C. Pea D. Citrus
Answer : A Explanation
15. Epiphyllous condition refer to fuse of stamen with the perianth in
A. Mustard B. Brinjal
C. Lily D. Citrus
Answer : C Explanation
16. There may be variation in the length of filament in flower in
A. Brinjal and Pea
B. Salvia and Brinjal
C. Salvia and Mustard
D. Pea and Mustard
Answer : C Explanation
19. Match the List
A. China 1. Monodelphous
Rose
B. Pea 2. Didelphous
C. Citrus. 3. Polydelphous
A B C
A. 2 3 1
B. 3 2 1
C. 1 3 2
D. 1 2 3
Answer: D Explanation
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