2.5 Seeds

Question 1

The seed (fertilized ovule) contains three parts: _, _ and _.

Answer 1

the seed embryo, cotyledon/endosperm (reserve food) and seed coat

Question 2

In _, the seed is additionally covered by the fruit.

Answer 2

Angiosperms

Question 3

_ is called covered seed as opposed to the naked seed of _.

Answer 3

Angiosperm, gymnosperm

Question 4

_ has nothing on except its own seed coat.

Answer 4

A naked seed

Question 5

The seed embryo, in turn, consists of the _ (_), _, and the _ ().

Answer 5

radicle (future root), epicotyl, hypocotyl, plumule (future shoot)

Question 6

_ and _ are food storing tissues, essential for the seed embryo (future plant) until it forms leaf and starts manufacturing its own food.

Answer 6

Cotyledon and endosperm

Question 7

A seed of _ may have one cotyledon (monocot) or two cotyledons (dicot).

Answer 7

angiosperm

Question 8

List the d/f b/n dicot and monocot

Answer 8

Dicot seed
- Two cotyledons are present in the embryo
- Cotyledons are fleshy and store food materials
- Endosperm is absent
- Primary root produced from the radicle bears many lateral roots.

Monocot seed
- Only one cotyledon present
- Cotyledon is very thin and lacks food materials
- Endosperm is large and well
developed
- Primary root formed from radicle is replaced by adventitious fibrous root

Question 9

An _ flower is _ flower, but an
_ flower may or may not be an _ flower.

Answer 9

imperfect, incomplete
incomplete, imperfect