Types of Seeds and Seed Germination

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Questions and Answers

What is the primary function of the seed coat?

To protect the seed from physical damage (correct)

To produce leaves

To absorb water

To provide food to the embryo

Cotyledons are modified roots.

False

What is the baby plant inside the seed called?

Embryo

The tiny opening on the seed coat that absorbs water is called the ___________________.

Hilum Signup and view all the answers

Match the following seed parts with their functions:

Seed Coat = Protects the seed from physical damage Hilum = Absorbs water Cotyledons = Provides food to the growing embryo Embryo = The baby plant inside the seed Signup and view all the answers

The ___________________ develops into the roots of the plant.

Radicle Signup and view all the answers

What is the function of cotyledons?

To provide food to the growing embryo Signup and view all the answers

All seeds are round in shape.

False Signup and view all the answers

What is the role of radicle in the embryo of a seed?

Develops into the root of the baby plant Signup and view all the answers

All seeds have two seed leaves.

False Signup and view all the answers

What is the term for the seed leaves of a plant?

Cotyledons Signup and view all the answers

Seeds can be classified into two main types based on the number of _______________ they have.

seed leaves Signup and view all the answers

Match the following seeds with their types:

Wheat = Monocotyledonous Mango = Dicotyledonous Bajra = Monocotyledonous Pea = Dicotyledonous Signup and view all the answers

What is the function of the plumule in the embryo of a seed?

Develops into the shoot of the baby plant Signup and view all the answers

What is the characteristic of orchid seeds?

They are the size of a speck of dust Signup and view all the answers

What is the main difference between monocot and dicot seeds?

Number of cotyledons Signup and view all the answers

Monocot seeds have two cotyledons.

False Signup and view all the answers

The plumule is located in the ______________ of the embryo.

upper Signup and view all the answers

Which part of the embryo grows into the root of the plant?

Radicle Signup and view all the answers

Match the following seed types with their characteristics:

Monocot = One cotyledon Dicot = Two cotyledons Orchid = Seeds are very large Signup and view all the answers

The hilum is the scar where the seed was ______________ to the parent plant.

attached Signup and view all the answers

The seed coat is the outermost layer of the seed.

True Signup and view all the answers

Study Notes

Seed Structure

A seed has three main parts: seed coat, cotyledons, and embryo
Seed coat: protects the seed from physical and temperature-related damage
Hilum: a tiny opening in the seed coat that absorbs water
Cotyledons: fleshy parts or seed leaves that provide food for the growing embryo
Embryo: the baby plant inside the seed, consists of radicle (roots) and plumule (shoot of the plant)

Types of Seeds

There are two types of seeds: monocotyledonous and dicotyledonous
Monocotyledonous seeds have one seed leaf (e.g., wheat, bajra, maize, and rice)
Dicotyledonous seeds have two seed leaves (e.g., mango, gram, and pea)

Radicle and Plumule

Radicle develops into the roots of the baby plant
Plumule develops into the shoot of the baby plant

Fun Facts

Orchids have the smallest seeds, each seed is the size of a speck of dust!

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Description

Learn about the two main parts of an embryo in a seed, the process of germination, and the differences between monocotyledonous and dicotyledonous seeds.