Three features of cardiac muscles are: (i) Cardiac muscles are involuntary muscles that contract rapidly, but do not get fatigued. (ii) The cells of cardiac muscles are cylindrical, branched, and uninucleate. (iii) They control the contraction and relaxation of the heart. For more answers visit to wRead more
Three features of cardiac muscles are:
(i) Cardiac muscles are involuntary muscles that contract rapidly, but do not get fatigued.
(ii) The cells of cardiac muscles are cylindrical, branched, and uninucleate.
(iii) They control the contraction and relaxation of the heart.
A neuron consists of a cell body with a nucleus and cytoplasm. It has two important extensions known as the axon and dendrites. An axon is a long thread-like extension of nerve cells that transmits impulses away from the cell body. Dendrites, on the other hand, are thread-like extensions of cell bodRead more
A neuron consists of a cell body with a nucleus and cytoplasm. It has two important extensions known as the axon and dendrites. An axon is a long thread-like extension of nerve cells that transmits impulses away from the cell body. Dendrites, on the other hand, are thread-like extensions of cell body that receive nerve impulses. Thus, the axon transmits impulses away from the cell body, whereas the dendrite receives nerve impulses. This coordinated function helps in transmitting impulses very quickly.
The muscular tissue is responsible for movement in our body. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
The muscular tissue is responsible for movement in our body.
Phloem is the food conducting tissue in plants. It is made up of four components: (i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Phloem is the food conducting tissue in plants. It is made up of four components:
(i) Sieve tubes
(ii) Companion cells
(iii) Phloem parenchyma
(iv) Phloem fibres
The husk of a coconut is made up of sclerenchyma tissue. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
The husk of a coconut is made up of sclerenchyma tissue.
Apical meristem is present at the growing tips of stems and roots. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Apical meristem is present at the growing tips of stems and roots. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots.
Simple permanent tissues are of three types: Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma tissue is of further two types - aerenchyma and chlorenchyma. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Simple permanent tissues are of three types: Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma tissue is of further two types – aerenchyma and chlorenchyma.
In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc. But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body. ForRead more
In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc.
But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body. For example, the muscle cells form muscular tissues which helps in movement, nerve cells form the nervous tissue which helps in transmission of messages. This is known as division of labour in multicellular organisms. It is because of this division of labour that multicellular organisms are able to perform all functions efficiently.
Tissue is a group of cells that are similar in structure and are organised together to perform a specific task. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Tissue is a group of cells that are similar in structure and are organised together to perform a specific task.
Ribosomes are the site for protein synthesis. Ribosomes are very small structures found either in a free state, suspended in the cytoplasm, or attached to the surface of the endoplasmic reticulum. They are composed of ribonucleic acids and proteins. For more answers visit to website: https://www.tiwRead more
Ribosomes are the site for protein synthesis. Ribosomes are very small structures found either in a free state, suspended in the cytoplasm, or attached to the surface of the endoplasmic reticulum. They are composed of ribonucleic acids and proteins.
Give three features of cardiac muscles.
Three features of cardiac muscles are: (i) Cardiac muscles are involuntary muscles that contract rapidly, but do not get fatigued. (ii) The cells of cardiac muscles are cylindrical, branched, and uninucleate. (iii) They control the contraction and relaxation of the heart. For more answers visit to wRead more
Three features of cardiac muscles are:
(i) Cardiac muscles are involuntary muscles that contract rapidly, but do not get fatigued.
(ii) The cells of cardiac muscles are cylindrical, branched, and uninucleate.
(iii) They control the contraction and relaxation of the heart.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What does a neuron look like?
A neuron consists of a cell body with a nucleus and cytoplasm. It has two important extensions known as the axon and dendrites. An axon is a long thread-like extension of nerve cells that transmits impulses away from the cell body. Dendrites, on the other hand, are thread-like extensions of cell bodRead more
A neuron consists of a cell body with a nucleus and cytoplasm. It has two important extensions known as the axon and dendrites. An axon is a long thread-like extension of nerve cells that transmits impulses away from the cell body. Dendrites, on the other hand, are thread-like extensions of cell body that receive nerve impulses. Thus, the axon transmits impulses away from the cell body, whereas the dendrite receives nerve impulses. This coordinated function helps in transmitting impulses very quickly.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Name the tissue responsible for movement in our body.
The muscular tissue is responsible for movement in our body. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
The muscular tissue is responsible for movement in our body.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What are the constituents of phloem?
Phloem is the food conducting tissue in plants. It is made up of four components: (i) Sieve tubes (ii) Companion cells (iii) Phloem parenchyma (iv) Phloem fibres For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Phloem is the food conducting tissue in plants. It is made up of four components:
(i) Sieve tubes
(ii) Companion cells
(iii) Phloem parenchyma
(iv) Phloem fibres
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Which tissue makes up the husk of coconut?
The husk of a coconut is made up of sclerenchyma tissue. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
The husk of a coconut is made up of sclerenchyma tissue.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Where is apical meristem found?
Apical meristem is present at the growing tips of stems and roots. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Apical meristem is present at the growing tips of stems and roots. Their main function is to initiate growth in new cells of seedlings, at the tip of roots, and shoots.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Name types of simple tissues.
Simple permanent tissues are of three types: Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma tissue is of further two types - aerenchyma and chlorenchyma. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Simple permanent tissues are of three types: Parenchyma, Collenchyma, and Sclerenchyma. Parenchyma tissue is of further two types – aerenchyma and chlorenchyma.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What is the utility of tissues in multi-cellular organisms?
In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc. But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body. ForRead more
In unicellular organisms, a single cell performs all the basic functions such as respiration, movement, excretion, digestion, etc.
But in multicellular organisms, cells are grouped to form tissues. These tissues are specialised to carry out a particular function at a definite place in the body. For example, the muscle cells form muscular tissues which helps in movement, nerve cells form the nervous tissue which helps in transmission of messages. This is known as division of labour in multicellular organisms. It is because of this division of labour that multicellular organisms are able to perform all functions efficiently.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
What is a tissue?
Tissue is a group of cells that are similar in structure and are organised together to perform a specific task. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Tissue is a group of cells that are similar in structure and are organised together to perform a specific task.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-6/
Where are proteins synthesized inside the cell?
Ribosomes are the site for protein synthesis. Ribosomes are very small structures found either in a free state, suspended in the cytoplasm, or attached to the surface of the endoplasmic reticulum. They are composed of ribonucleic acids and proteins. For more answers visit to website: https://www.tiwRead more
Ribosomes are the site for protein synthesis. Ribosomes are very small structures found either in a free state, suspended in the cytoplasm, or attached to the surface of the endoplasmic reticulum. They are composed of ribonucleic acids and proteins.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-5/