The important functions of stomata are: (i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration. (ii) Transpiration, i.e., loss of water in the form of water vapour.
The important functions of stomata are:
(i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration.
(ii) Transpiration, i.e., loss of water in the form of water vapour.
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in following table: Parenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose. Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose. Sclerenchyma:Read more
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in following table:
Parenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose.
Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose.
Sclerenchyma: (i) Cell wall is secondary. (ii) Cell wall is very thick obliterating internal cellular space. Cell wall is thickened due to
Xylem is a complex tissue. It is made up of following four kinds of cells (= elements): (i) Tracheids; (ii) Vessels; (iii) Xylem parenchyma; (iv) Xylem fibres.
Xylem is a complex tissue. It is made up of following four kinds of cells (= elements): (i) Tracheids; (ii) Vessels; (iii) Xylem parenchyma; (iv) Xylem fibres.
A tissue is a group or collection of similar or disimilar cells which work together to achieve a particular function. Cells of a tissue have common origin
A tissue is a group or collection of similar or disimilar cells which work together to achieve a particular function. Cells of a tissue have common origin
(i) Cardiac muscles are involuntary. (ii) Cardiac muscle cells are cylindrical, branched and uninucleate. (iii) Cardiac muscles show rhythmic contraction and relaxation throughout the life.
(i) Cardiac muscles are involuntary.
(ii) Cardiac muscle cells are cylindrical, branched and uninucleate.
(iii) Cardiac muscles show rhythmic contraction and relaxation throughout the life.
Neuron or nerve cell is a unit of nervous tissue (brain, spinal cord and nerves) which serves to transmit messages in our body. A neuron consists of cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Usually, each neuron has a single long part called the axon, and maRead more
Neuron or nerve cell is a unit of nervous tissue (brain, spinal cord and nerves) which serves to transmit messages in our body. A neuron consists of cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Usually, each neuron has a single long part called the axon, and many short branched Processes (parts) called dendrites.
What is the specific function of the cardiac muscle?
Cardiac muscle is present in the heart. It contracts and relaxes rapidly and continuously with a rhythm, but it never gets fatigued
Cardiac muscle is present in the heart. It contracts and relaxes rapidly and continuously with a rhythm, but it never gets fatigued
See lessWhat are the functions of the stomata?
The important functions of stomata are: (i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration. (ii) Transpiration, i.e., loss of water in the form of water vapour.
The important functions of stomata are:
See less(i) Exchange of gases with atmosphere, e.g., entry of carbon dioxide for photosynthesis and of oxygen for respiration.
(ii) Transpiration, i.e., loss of water in the form of water vapour.
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 following table: Parenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose. Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose. Sclerenchyma:Read more
The differences between cell walls of parenchyma, collenchyma and sclerenchyma are given in following table:
See lessParenchyma: (1) Cell wall is primary. (ii) Cell walls thin and made up of cellulose.
Collenchyma:(1) Cell wall is primary. (ii) Cell wall has localised thickening of cellulose.
Sclerenchyma: (i) Cell wall is secondary. (ii) Cell wall is very thick obliterating internal cellular space. Cell wall is thickened due to
How are simple tissue different from complex tissue in plants?
A simple tissue is made up of only one type of cells where as complex tissue is made up of different types of cells.
A simple tissue is made up of only one type of cells where as complex tissue is made up of different types of cells.
See lessHow many types of elements together make up the xylem tissue? Name them.
Xylem is a complex tissue. It is made up of following four kinds of cells (= elements): (i) Tracheids; (ii) Vessels; (iii) Xylem parenchyma; (iv) Xylem fibres.
Xylem is a complex tissue. It is made up of following four kinds of cells (= elements): (i) Tracheids; (ii) Vessels; (iii) Xylem parenchyma; (iv) Xylem fibres.
See lessDefine the term “tissue”.
A tissue is a group or collection of similar or disimilar cells which work together to achieve a particular function. Cells of a tissue have common origin
A tissue is a group or collection of similar or disimilar cells which work together to achieve a particular function. Cells of a tissue have common origin
See lessWhat are functions of areolar tissue?
Areolar tissue is a connective tissue. It fills the space inside the organs, supports internal organs and helps in repair of tissues.
Areolar tissue is a connective tissue. It fills the space inside the organs, supports internal organs and helps in repair of tissues.
See lessGive three features of cardiac muscle.
(i) Cardiac muscles are involuntary. (ii) Cardiac muscle cells are cylindrical, branched and uninucleate. (iii) Cardiac muscles show rhythmic contraction and relaxation throughout the life.
(i) Cardiac muscles are involuntary.
See less(ii) Cardiac muscle cells are cylindrical, branched and uninucleate.
(iii) Cardiac muscles show rhythmic contraction and relaxation throughout the life.
What does a neuron look like?
Neuron or nerve cell is a unit of nervous tissue (brain, spinal cord and nerves) which serves to transmit messages in our body. A neuron consists of cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Usually, each neuron has a single long part called the axon, and maRead more
Neuron or nerve cell is a unit of nervous tissue (brain, spinal cord and nerves) which serves to transmit messages in our body. A neuron consists of cell body with a nucleus and cytoplasm, from which long thin hair-like parts arise. Usually, each neuron has a single long part called the axon, and many short branched Processes (parts) called dendrites.
See lessName the tissue responsible for movement in our body.
Muscular tissue
Muscular tissue
See less