Target Exam

CUET

Subject

Biology

Chapter

Sexual Reproduction in Flowering Plants

Question:

Match the Column I with Column II .

Column I Column II
A. Tapetum I. Irregularly shaped nucleus with abundant food reserve
B. Exine II. Acts as the nutritive layer
C. Generative cell III. Thick, rigid protective layer
D. Vegetative cell IV. Involve in the formation of microspores
E. Sporogenous cells V. Spindle shaped with dense cytoplasm and a nucleus.

 

Options:

A – II; B – IV; C – V; D – I; E – III

A – II; B – III; C – I; D – IV; E – V

A – II; B – III; C – V; D – I; E – IV

A – I; B – III; C – II; D – IV; E – V

Correct Answer:

A – II; B – III; C – V; D – I; E – IV

Explanation:

The correct answer is Option (3) - A – II; B – III; C – V; D – I; E – IV

Column I Column II
A. Tapetum II. Acts as the nutritive layer
B. Exine III. Thick, rigid protective layer
C. Generative cell V. Spindle-shaped with dense cytoplasm and a nucleus.
D. Vegetative cell I. Irregularly shaped nucleus with abundant food reserve
E. Sporogenous cells IV. Involve in the formation of microspores

 

Explanation:

A. Tapetum is a nutritive tissue layer that surrounds the developing microspores in the anther. It provides nourishment and metabolic support to the developing pollen grains.

B. Exine refers to the outermost layer of the pollen grain. It is a thick and rigid layer that provides protection to the delicate contents of the pollen grain.

C. Generative cell is small and floats in the cytoplasm of the vegetative cell. It is spindle shaped with dense cytoplasm and a nucleus.

D. Vegetative cell :When the pollen grain is mature it contains two cells, the vegetative cell and generative cell . The vegetative cell is bigger, has abundant food reserve and a large irregularly shaped nucleus.

E. Sporogenous cells are the cells within the anther that undergo meiosis to form microspores. These microspores give rise to pollen grains.