PLANT STRUCTURE AND THEIR FUNCTIONS SEEDS

Question 1

Embryo

Answer 1

Inside the seed is an embryo, which starts the new generation. The
protection afforded to the embryo by the tissues of the seed and
fruit increases the probability of survival of progenies.

Question 2

Testa

Answer 2

It is the outer coat of
the seed that protects
the embryonic plant.

Question 3

Micropyle

Answer 3

It is a tiny pore in
the testa that lies on the
opposite of the tip of the
radicle. It permits water to
enter the embryo before
active germination.

Question 4

Cotyledon

Answer 4

they are the leaves
of the embryo that provide
nourishment to the developing
plant..

Question 5

Radicle

Answer 5

This is the embryonic
root which will develop into the
primary root of the plant. It is
usually the first part of the
embryo to push its way out of the
seed during germination.

Question 6

Monocot Seeds

Answer 6

• Monocot seeds have a single
  cotyledon
• The cotyledon in monocot seeds
  are thin and small
• The endosperm is present
  which stores a large amount of
  food for the embryo

Question 7

Dicot Seeds

Answer 7

• Dicot seeds have two distinct
  cotyledons.
• The cotyledons in dicot seeds
  are fleshy and store food
  materials.
• The endosperm is reduced or
  even absent.

Question 8

Monocot

Answer 8

Seed- one cotyledon
Root- Fibrous roots
Vascular- Scattered
Leaf- Parallel veins
Flower- Multiples of 3

Question 9

Dicot

Answer 9

Seed- two cotyledon
Root- Taproots
Vascular- Ringed
Leaf- Net-like veins
Flower- 4 or 5