Home › ICAR JRF › Plant Sciences › Plant Reproduction › A mature pollen grain contains which two cells?
A mature pollen grain contains which two cells?
AA generative cell and a pollen tube cell
BA generative cell and a single synergid cell
CTwo sperm cells enclosed in a thick wall
DA tube cell and a central endosperm cell
Answer & Solution
Correct answer: A. A generative cell and a pollen tube cell
1. A mature pollen grain contains two cells, a generative cell and a pollen tube cell.
2. The generative cell is contained within the larger pollen tube cell.
3. On germination the tube cell forms the pollen tube through which the generative cell travels.
4. Two sperm cells appear only later, when the generative cell divides during its transit inside the tube.
5. Synergids and the central cell belong to the embryo sac on the female side.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 32 "Plant Reproduction", section 32.1 Reproductive Development and Structure_
Related questions
A flower has been pollinated. What must still happen before a seed can form?What is the transfer of pollen from a stamen to a stigma called?In Bryophyllum and kalanchoe, new plants develop from which structure?What happens to the components of a leaf that a tree is about to shed?Which characteristic of senescence explains the yellowing of leaves?How long may the vegetative period last in some bamboo species before flowering?Bamboo and yucca flower only once in their lifetime. Such plants are called what?A carrot, which completes its life cycle in two seasons, is which kind of plant?