Cell Structure and Functions– 4

Why plant cells need cell walls?OrWhat is the function of cell wall in a plant cell? What is the first statement of this audio clip?

• Cell membrane gives shape to the cell.

• In addition to the cell membrane, there is an outer thick layer in cells of plants called cell wall.

• This additional layer surrounding the cell membrane is required by the plants for protection.

• Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc.

• They are exposed to these variations because they cannot move.

Why plant cells need cell walls?OrWhat is the function of cell wall in a plant cell? What is the second statement of this audio clip?

• Cell membrane gives shape to the cell.

• In addition to the cell membrane, there is an outer thick layer in cells of plants called cell wall.

• This additional layer surrounding the cell membrane is required by the plants for protection.

• Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc.

• They are exposed to these variations because they cannot move.

Why plant cells need cell walls?OrWhat is the function of cell wall in a plant cell? What is the third statement of this audio clip?

• Cell membrane gives shape to the cell.

• In addition to the cell membrane, there is an outer thick layer in cells of plants called cell wall.

• This additional layer surrounding the cell membrane is required by the plants for protection.

• Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc.

• They are exposed to these variations because they cannot move.

Why plant cells need cell walls?OrWhat is the function of cell wall in a plant cell? What is the fourth statement of this audio clip?

• Cell membrane gives shape to the cell.

• In addition to the cell membrane, there is an outer thick layer in cells of plants called cell wall.

• This additional layer surrounding the cell membrane is required by the plants for protection.

• Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc.

• They are exposed to these variations because they cannot move.

Why plant cells need cell walls?OrWhat is the function of cell wall in a plant cell? What is the fifth statement of this audio clip?

• Cell membrane gives shape to the cell.

• In addition to the cell membrane, there is an outer thick layer in cells of plants called cell wall.

• This additional layer surrounding the cell membrane is required by the plants for protection.

• Plant cells need protection against variations in temperature, high wind speed, atmospheric moisture, etc.

• They are exposed to these variations because they cannot move.

What are the functions of the cell membrane? What is the first statement of this audio clip?

• The cytoplasm and nucleus are enclosed within the cell membrane, also called the plasma membrane.

• The membrane separates cells from one another and also the cell from the surrounding medium.

• The plasma membrane is porous and allows the movement of substances or materials both inward and outward.

What are the functions of the cell membrane? What is the second statement of this audio clip?

• The cytoplasm and nucleus are enclosed within the cell membrane, also called the plasma membrane.

• The membrane separates cells from one another and also the cell from the surrounding medium.

• The plasma membrane is porous and allows the movement of substances or materials both inward and outward.

What are the functions of the cell membrane? What is the third statement of this audio clip?

• The cytoplasm and nucleus are enclosed within the cell membrane, also called the plasma membrane.

• The membrane separates cells from one another and also the cell from the surrounding medium.

• The plasma membrane is porous and allows the movement of substances or materials both inward and outward.

State the difference between eukaryotes and prokaryotes. What is the first statement of this audio clip?

• Prokaryotes : The cells having nuclear material without nuclear membrane are termed prokaryotic cells.

• The organisms with these kinds of cells are called prokaryotes.

• Examples of Prokaryotes: blue-green algae, bacteria and mycoplasma.

• Eukaryotes :The cells, like onion cells and cheek cells having well organised nucleus with a nuclear membrane are designated as eukaryotic cells.

• All organisms other than bacteria and blue green algae are called eukaryotes.

State the difference between eukaryotes and prokaryotes. What is the second statement of this audio clip?

• Prokaryotes: The cells having nuclear material without nuclear membrane are termed prokaryotic cells.

• The organisms with these kinds of cells are called prokaryotes.

• Examples of Prokaryotes: blue-green algae, bacteria and mycoplasma.

• Eukaryotes:The cells, like onion cells and cheek cells having well organised nucleus with a nuclear membrane are designated as eukaryotic cells.

• All organisms other than bacteria and blue green algae are called eukaryotes.