Question

plant propagation
worksheet 1
key concept: propagation of plants through seeds and structure of a seed
i. multiple choice questions
darken the bubble next to each correct option.

1. a seed will still continue to grow in the absence of ---

a. water
b. air
c. warmth
d. carbon dioxide
2 new plants can be grown from ---
a. seeds
b. anthers
c. ovules
d. pollens

1. which of these is not a part of a seed?

a. embryo
b. seed leaves
c ovary
d. seed coat

1. the seed has a baby plant sleeping inside it called ---

a. embryo
b. seed leaves
c seed coat
d. roots

1. the tough covering of a seed is called ---

a. cotyledons
b. bark
c seed coat
d. embryo

1. among many benefits, plants provide us with ---

a. water
b. soil
c light
d. medicine

Explanation:

1. Seeds need water, air, and warmth to germinate. Carbon - dioxide is not essential for the initial growth of a seed.
2. Seeds are a common way to grow new plants. Anthers produce pollen, ovules are part of the female reproductive structure in flowers, and pollen is involved in fertilization but not a direct source for growing new plants like seeds.
3. The embryo, seed leaves (cotyledons), and seed coat are parts of a seed. The ovary is part of the flower's female reproductive organ and not part of the seed.
4. The embryo is the baby plant inside the seed. Seed leaves provide nutrients, the seed coat is a protective layer, and roots develop from the embryo after germination.
5. The tough covering of a seed is the seed coat. Cotyledons are seed leaves, bark is on trees, and the embryo is the young plant inside.
6. Plants provide us with medicine. They do not provide water, soil, or light in the sense of being a source of these elements.

Answer:

1. d. carbon dioxide
2. a. seeds
3. c. ovary
4. a. embryo
5. c. seed coat
6. d. medicine