Question

summary of tissues class 9th ncert

Answer 1

Olá User.
Here's ur answer.
HOPE IT HELPS.
@Charlie16.

Answer 2

1. Tissue is a group of cells having similar origin, structure & function. Study of tissues is

called Histology

2. In unicellular organism (Amoeba), single cell performs all basic functions, whereas in

multi-cellular organisms (Plants and Animals) shows division of labour as Plant tissue &

Animal tissues.

3. Plant tissues are two types: Meristems & Permanent tissues.

4. Meristems: The Meristems are the tissues having the power of cell division. It is found on

those region of the plant which grows.

Types of Meristems;

1. The Apical meristems – It is present at the growing tip of the stem and roots and

increases the length.

2. The lateral meristems - present at the lateral side of stem anf root (cambium) and

increases the girth.

3. The intercalary meristems - present at internodes or base of the leaves and increases the

length between the nodes.

Permanent tissues: Two types such as Simple permanent tissues & Complex permanent

tissues.

a) Simple permanent tissues: subdivided as

(i): Parenchyma: Tissues provide the support to plants.They are loosly packed and has large

intracellular space.

Parenchyma with chlorophyll which performs photosynthesis is called as1. Tissue is a group of cells having similar origin, structure & function. Study of tissues is

called Histology

2. In unicellular organism (Amoeba), single cell performs all basic functions, whereas in

multi-cellular organisms (Plants and Animals) shows division of labour as Plant tissue &

Animal tissues.

3. Plant tissues are two types: Meristems & Permanent tissues.

4. Meristems: The Meristems are the tissues having the power of cell division. It is found on

those region of the plant which grows.

Types of Meristems;

1. The Apical meristems – It is present at the growing tip of the stem and roots and

increases the length.

2. The lateral meristems - present at the lateral side of stem anf root (cambium) and

increases the girth.

3. The intercalary meristems - present at internodes or base of the leaves and increases the

length between the nodes.

Permanent tissues: Two types such as Simple permanent tissues & Complex permanent

tissues.

a) Simple permanent tissues: subdivided as

(i): Parenchyma: Tissues provide the support to plants.They are loosly packed and has large

intracellular space.

Parenchyma with chlorophyll which performs photosynthesis is called as1. Tissue is a group of cells having similar origin, structure & function. Study of tissues is

called Histology

2. In unicellular organism (Amoeba), single cell performs all basic functions, whereas in

multi-cellular organisms (Plants and Animals) shows division of labour as Plant tissue &

Animal tissues.

3. Plant tissues are two types: Meristems & Permanent tissues.

4. Meristems: The Meristems are the tissues having the power of cell division. It is found on

those region of the plant which grows.

Types of Meristems;

1. The Apical meristems – It is present at the growing tip of the stem and roots and

increases the length.

2. The lateral meristems - present at the lateral side of stem anf root (cambium) and

increases the girth.

3. The intercalary meristems - present at internodes or base of the leaves and increases the

length between the nodes.

Permanent tissues: Two types such as Simple permanent tissues & Complex permanent

tissues.

a) Simple permanent tissues: subdivided as

(i): Parenchyma: Tissues provide the support to plants.They are loosly packed and has large

intracellular space.

Parenchyma with chlorophyll which performs photosynthesis is called as