What is the difference between the manner in which movement takes place in a sensitive plant and the movement in our legs?
Solution and Explanation
Movement in sensitive plants | Movement in our legs | ||
|---|---|---|---|
1. | The movement that takes place in a sensitive plant such as Mimosa pudica occurs in response to touch (stimulus). | 1. | Movement in our legs is an example of voluntary actions. |
2. | For this movement, the information is transmitted from cell to cell by electrochemical signals as plants do not have any specialized tissue for conduction of impulses. | 2. | The signal or messages for these actions are passed to the brain and hence are consciously controlled. |
3. | For this movement to occur, the plant cells change shape by changing the amount of water in them. | 3. | In animal muscle cells, some proteins are found which allow the movement to occur. |
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Concepts Used:
Human Nervous System
The human nervous system is responsible for controlling and coordinating all the activities of the human body.
The three major functions of the human nervous system are:
- Gathering or assembling sensory information from the body and external environment.
- Processing and interpreting the sensory information acquired.
- Conveying or transferring appropriate response to the sensory information acquired.
The nervous system is mainly divided into two, namely:
The Central Nervous System (CNS) comprises the brain and spinal cord.
- The brain is majorly involved in the perception and processing of sensory input. It also regulates or manages voluntary motor responses and homeostatic mechanisms.
- The spinal cord act as a pathway for the transmission of information between the brain and the peripheral nervous system. It also takes action on reflex actions.
The Peripheral Nervous System (PNS) comprises sensory/motor neurons and ganglion.