Endosperm and Embryo Development in Seeds Quiz

What is the function of the micropyle in a seed?

Serves as a protective layer for the seed coat

Regulates germination by allowing entry of oxygen and water (correct)

Enhances photosynthesis in the seed

Helps in dispersal of seeds

What is the moisture content of seeds when they become relatively dry?

5-10 per cent

20-25 per cent

10-15 per cent (correct)

30-35 per cent

What is the term used to describe the state of inactivity that the embryo may enter during seed maturation?

Dormancy (correct)

Photosynthesis

Pollination

Germination

Which part of the flower contributes to fruit formation in species like apple and strawberry?

Thalamus Signup and view all the answers

What is the wall of the ovary transformed into during fruit development?

Pericarp Signup and view all the answers

What is the relationship between the number of ovules in an ovary and the number of seeds in a fruit?

Depends on the plant species Signup and view all the answers

What is the term used to describe the cotyledon in the grass family?

Scutellum Signup and view all the answers

Which part of the seed is generally thick and swollen due to storage of food reserves?

Cotyledon Signup and view all the answers

What is the term for the undifferentiated sheath that encloses the radical and root cap in an embryo?

Coleorrhiza Signup and view all the answers

Which part of the embryonal axis contains the shoot apex and leaf primordia?

Epicotyl Signup and view all the answers

Which type of seeds have no residual endosperm after embryo development?

Pea Signup and view all the answers

In angiosperms, what is often described as a fertilized ovule?

Seed Signup and view all the answers

What is the fate of the endosperm in seeds like peas, groundnuts, and beans?

It is completely consumed by the developing embryo before seed maturation. Signup and view all the answers

Which seeds show persistence of endosperm in the mature seed to be used during seed germination?

Castor and coconut Signup and view all the answers

Where does the zygote develop in the embryo sac?

At the micropylar end Signup and view all the answers

Why do most zygotes divide only after a certain amount of endosperm is formed?

To provide nutrition to the developing embryo Signup and view all the answers

Which part of a dicotyledonous embryo terminates at its lower end with the radicle or root tip?

Hypocotyl Signup and view all the answers

What covers the root tip of a dicotyledonous embryo?

Root cap Signup and view all the answers