Cardiac muscles are involuntary muscles which show characteristics of both smooth and striated muscles. These muscles occur in the walls of the heart. Functions of Cardiac Muscles • Cardiac muscles contract and relax rapidly, rhythmically and tirelessly throughout life. They contract endlessly fromRead more
Cardiac muscles are involuntary muscles which show characteristics of both smooth and striated muscles. These muscles occur in the walls of the heart.
Functions of Cardiac Muscles
• Cardiac muscles contract and relax rapidly, rhythmically and tirelessly throughout life. They contract endlessly from early embryonic stage until death.
• The contraction and relaxation of heart muscles help to pump and distribute blood to various parts of body.
The small pores present in the epidermis of the leaf are stomata. Stomata are enclosed by two kidney shaped cells called guard cells. Functions of Stomata • Exchange of gases, particularly CO2 and O2, with atmosphere. • Loss of water in the form of vapour during transpiration. For more answers visitRead more
The small pores present in the epidermis of the leaf are stomata. Stomata are enclosed by two kidney shaped cells called guard cells.
Functions of Stomata
• Exchange of gases, particularly CO2 and O2, with atmosphere.
• Loss of water in the form of vapour during transpiration.
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in the following table: Parenchyma Collenchyma Sclerenchyma 1. Cell wall is primary 1. Cell wall is primary. 1. Cell wall is secondary. 2. Cells have thin walls and 2. Cell walls are thickened 2. Cell wall is veRead more
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in the following table:
Parenchyma Collenchyma Sclerenchyma
1. Cell wall is primary 1. Cell wall is primary. 1. Cell wall is secondary.
2. Cells have thin walls and 2. Cell walls are thickened 2. Cell wall is very thick
made up of cellulose. at the corners due to due to ligni deposition.
protein deposition.
Simple tissues are made up of one type of cells which coordinate to perform a common function. Complex tissues are made up of more than one type of cells. All these coordinate to perform a common function. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/scienRead more
Simple tissues are made up of one type of cells which coordinate to perform a common function.
Complex tissues are made up of more than one type of cells. All these coordinate to perform a common function.
Name tissue that forms the inner lining of our mouth.
(a) Squamous epithelium For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
(a) Squamous epithelium
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What is the specific function of the cardiac muscle?
Cardiac muscles are involuntary muscles which show characteristics of both smooth and striated muscles. These muscles occur in the walls of the heart. Functions of Cardiac Muscles • Cardiac muscles contract and relax rapidly, rhythmically and tirelessly throughout life. They contract endlessly fromRead more
Cardiac muscles are involuntary muscles which show characteristics of both smooth and striated muscles. These muscles occur in the walls of the heart.
Functions of Cardiac Muscles
• Cardiac muscles contract and relax rapidly, rhythmically and tirelessly throughout life. They contract endlessly from early embryonic stage until death.
• The contraction and relaxation of heart muscles help to pump and distribute blood to various parts of body.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What are the functions of the stomata?
The small pores present in the epidermis of the leaf are stomata. Stomata are enclosed by two kidney shaped cells called guard cells. Functions of Stomata • Exchange of gases, particularly CO2 and O2, with atmosphere. • Loss of water in the form of vapour during transpiration. For more answers visitRead more
The small pores present in the epidermis of the leaf are stomata. Stomata are enclosed by two kidney shaped cells called guard cells.
Functions of Stomata
• Exchange of gases, particularly CO2 and O2, with atmosphere.
• Loss of water in the form of vapour during transpiration.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Differentiate between parenchyma, collenchyma and sclerenchyma on the basis of their cell wall.
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in the following table: Parenchyma Collenchyma Sclerenchyma 1. Cell wall is primary 1. Cell wall is primary. 1. Cell wall is secondary. 2. Cells have thin walls and 2. Cell walls are thickened 2. Cell wall is veRead more
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in the following table:
Parenchyma Collenchyma Sclerenchyma
1. Cell wall is primary 1. Cell wall is primary. 1. Cell wall is secondary.
2. Cells have thin walls and 2. Cell walls are thickened 2. Cell wall is very thick
made up of cellulose. at the corners due to due to ligni deposition.
protein deposition.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
How are simple tissues different from complex tissues in plants?
Simple tissues are made up of one type of cells which coordinate to perform a common function. Complex tissues are made up of more than one type of cells. All these coordinate to perform a common function. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/scienRead more
Simple tissues are made up of one type of cells which coordinate to perform a common function.
Complex tissues are made up of more than one type of cells. All these coordinate to perform a common function.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/