Growth in plants

?
Stem and root apices are divided into?
The region of cell division
The region of cell elongation
The region of cell maturation
1 of 10
Region of cell division
It is also known as the Apical meristem. it consists of meristematic cells.
2 of 10
What are meristematic cells
They are cells capable of active division.
3 of 10
Region of cell elongation
The cell are enlarged to their maximum size in this region. by stretching of their walls. This is done by the absorption of water and cellulose material in the cell.
4 of 10
Region of cell maturation
The cells in this region, have attained their permanent size and have become specialized to carry out certain functions.
5 of 10
Functions of the apical meristem
Brings about primary growth of plants.
Promotes growth in height of plants, gives rise to branches, leaves and flowers.
6 of 10
Factors affecting growth
1. External factors; i.e. availability of nutrients, humidity, light, temperature, pH, and accumulation of metabolic products

2. Internal factors; i.e. hormones
7 of 10
Hormones
These are organic catalysts usually proteinous in nature which speed up chemical changes in living cells but are not themselves used up in the process.
8 of 10
Types of plant hormones
Auxins
Gibberellins
Cytokinin
Abscisic acid
Ethylene
9 of 10
Auxins and Gibberellins
Auxins are produced in the apical meristem.
Gibberellins promote stem elongation, growth of fruits and leaves
10 of 10

Other cards in this set

Card 2

Front

It is also known as the Apical meristem. it consists of meristematic cells.

Back

Region of cell division

Card 3

Front

They are cells capable of active division.

Back

Preview of the back of card 3

Card 4

Front

The cell are enlarged to their maximum size in this region. by stretching of their walls. This is done by the absorption of water and cellulose material in the cell.

Back

Preview of the back of card 4

Card 5

Front

The cells in this region, have attained their permanent size and have become specialized to carry out certain functions.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Growth in plants resources »