Life Processes

Question 1

What is fertilisation in a flower?

Answer 1

Fertilisation in a flower occurs after pollination when the male gamete is relocated and is then moved to the female gamete. The two combine together forming a normal number of chromosomes, having half from both.

Question 2

What is seed dispersal?

Answer 2

Seed dispersal is when seeds are moved or are spread out into new places in order for a new site to germinate

Question 3

Define nutrition?

Answer 3

Nutrition is the process of providing or obtaining the food necessary for health and growth

Question 4

What are the 3 internal parts of a leaf?

Answer 4

Upper epidermis
Mesophyll (Top part: Palisade mesophyll)
Mesophyll (Lower part: Spongy mesophyll)
Lower epidermis

Question 5

What are the external parts of a leaf?

Answer 5

Petiole, Midrib, Veins, Blade & Waxy Cuticle

Question 6

What is pollination?

Answer 6

Pollination is when the male part of the flower (anther) is transferred to the female part (stigma) of another flower. The pollen is then moved from the stigma to the ovules.

Question 7

What is germination?

Answer 7

Germination is when the embryos within a seed starts to enlarge, followed by the seed coat breaking causing a root or radicle to emerge first. Then followed by the shoot or plumule that contain the leaves and stem.

Question 8

What is seed dispersal?

Answer 8

Seed dispersal is when seeds are moved or spread to other places for germination, usually away from the parent plant.

Question 9

Different types of see dispersal’s?

Answer 9

wind dispersal, animal dispersal, and water dispersal

Question 10

Internal parts of a seed?

Answer 10

Plumule, radicle, micropyle, cotyledon, and testa

Question 11

Function of the plumule?

Answer 11

The plumule is the embryonic shoot and appears as the bud, which will later give rise to a shoot and the remaining structures of the plant

Question 12

Function of the testa?

Answer 12

The testa is what protects the embryonic shoot, it serves as a outer shell

Question 13

Function of the radicle?

Answer 13

The radicle is embroynic root which will later on develop into the primary root of the plant

Question 14

Function of the cotyledon?

Answer 14

The cotyledon is what develops into the main food source for plants and usually contains starch

Question 15

Function of micropyle?

Answer 15

This is a tiny pore that allows water to enter the seed prior to germination.