Home
Class 11
BIOLOGY
Why does the zygote begin to divide only...

Why does the zygote begin to divide only after the division of Primary endosperm cell (PEC)?

Text Solution

Verified by Experts

The primary endosperm cell divides repeatedly and forms a triploid endosperm tissue. The cells of this tissue are filled with reserve food materials and are used for nutrition of the developing embryo. Embryo develops at the Micropylar end of the embryosac where zygote is situated. Most zygotes divide only after certain amount of endosperm is formed. This is an adaptation to provide assured nutrition to the developing embryo.
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Important questions|13 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Long answer type questions|6 Videos

  • SCIENCE OF PLANTS - BOTANY

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise IMPORTANT QUESTIONS|8 Videos

  • STRUCTURAL ORGANISATION IN ANIMALS

    VIKRAM PUBLICATION ( ANDHRA PUBLICATION)|Exercise Important Question|24 Videos

Similar Questions

Explore conceptually related problems

The detailed structure of cell membrane was studied only after the invention of

Why does carbon dioxide cannot enter the cell?

This developing structure after repeated division of cells is termed as -

Who explained that the new cells could be formed only by the division of the pre-existing cells?

Why does coffee taste less sweet if it is taken after eating sweet?

Why does plant cell posses large sized vacuole?

Mention the ploidy of the following: protonemal cell of a moss, primary endosperm nucleus in dicot, leaf cell of a moss, prothallus cell of a fern, gemma cell in Marchantia, meristem cell of monocot, ovum of a liverwort, and zygote of a fern.

Why cell division does not occur in neurons?