Table of Contents
- 1 Why are nerve cells elongated in shape?
- 2 Is nerve cell elongated in shape?
- 3 Why are nerve cells long and why these cells have projections?
- 4 Which cell is elongated branched?
- 5 Which cells are long and branched?
- 6 Why do neurons have different shapes and sizes?
- 7 Why do nerve cells have elongated shape?
- 8 Why do nerve cells have branches and chloroplasts?
Why are nerve cells elongated in shape?
The major function of nerve cells is to transfer messages in the form of electrical impulses to different parts of the body. Nerve cells are long and have branches because they need more surface area to pass the signals to cell by cell.
Why are nerve cells so narrow and elongated?
Electron microscopy confirms the concept of dendrites as extensions of the cell body. The same types of intracellular substructures that characterize the cell body of a neuron are also present in dendrites. Many types of neurons have dendrites with a special form of synaptic connection, dendritic spines.
Is nerve cell elongated in shape?
Nerve cells have a star-shaped body and have long messages.
Are nerve cells branched and elongated?
Nerve cells are usually very long and branched so that it helps in transmission of signals or electrical impulses over all parts of the body.
Why are nerve cells long and why these cells have projections?
Nerve cells are as usually long and have projection because of the need to transmit information between various parts of the body. It is a key unit of nervous system and also help in carrying impulses from the body.
Why is the nerve cell that shape?
Nerve cell shapes vary according to the number, branching and disposition of their projections or dendrites, collectively known as arborization. This determines their capacity for interacting with their environment and with other nerve cells or neurons, hence their computational ability and roles.
Which cell is elongated branched?
Branched and elongated: Nerve Cells.
Why are nerve cells long for Class 8?
Cell Structure and Functions Class 8 Science NCERT Textbook Questions. What function do nerve cells perform? Answer: Function of nerve cells: The function of the nerve cell is to receive and transfer messages, it helps to control and coordinate the working of different parts of the body.
Which cells are long and branched?
The nerve cell or a Neuron is long and branched. Nerve cell helps to transmit messages within our body.
What is the size of nerve cell?
They vary in size from 4 microns (. 004 mm) to 100 microns (. 1 mm) in diameter. Their length varies from a fraction of an inch to several feet.
Why do neurons have different shapes and sizes?
Like blood, liver, muscle, and other body cells, neurons have an outer membrane, a nucleus, and smaller structures called organelles that perform important functions. The intricate branches, or arbors, of these extensions are what give neurons their beautifully strange and varied shapes.
What are elongated cells?
The term elongation will be used for any permanent enlargement of cells already formed by differentiation. As the size of a plant cell is determined by the extent of the surface of its wall, cell elongation may be defined also as any permanent increase in the surface of the cell wall.
Why do nerve cells have elongated shape?
The nerve cells are elongated as their main task is to transmit impulses over long distances.Nerves pick up electrical impulses from all over the body, and these impulses must travel along an unbroken path to reach the brain.And for the same reason,nerve cells do not divide. I deem that this is one…
What is the main function of nerve cells Quizlet?
Expert Answer: The major function of nerve cells is to transfer messages in the form of electrical impulses to different parts of the body. Nerve cells are long and have branches because they need more surface area to pass the signals to cell by cell.
Why do nerve cells have branches and chloroplasts?
Nerve cells are long and have branches because they need more surface area to pass the signals to cell by cell. Their branches structure helps them to receive and transfer messages, thereby helping to control and coordinate the working of different parts of the body. This video explains why chloroplasts are present only in plant cells.