How does the action due to nervous tissue in animals is different from response to to the stimulus in plants?

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This is because in nervous tissues the actions are carried out through electical impulses but in plants it takes place by changing the water concentration .

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Answer

The Action due to Nervous Tissue in Animals versus the Response to Stimulus in Plants

1. Nervous Tissue in Animals

Nervous tissue is a specialized type of tissue found in animals, specifically in their nervous system. It is responsible for transmitting electrical signals and coordinating various functions of the body. The nervous tissue is made up of two main types of cells: neurons and neuroglia.

2. Neurons

Neurons are the functional units of the nervous system. They receive, process, and transmit information through electrical and chemical signals. Neurons have a unique structure, including a cell body, dendrites, and an axon. The dendrites receive incoming signals, while the axon transmits signals to other neurons or effector cells.

3. Nervous System

The nervous system in animals consists of the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS includes the brain and spinal cord, while the PNS consists of nerves that connect the CNS to other parts of the body.

4. Stimulus and Response in Animals

In animals, when a stimulus is detected by sensory receptors, it triggers a response through the nervous system. The sensory receptors convert the stimulus into electrical signals that are transmitted to the CNS. The CNS processes the information and generates an appropriate response, which is then transmitted through motor neurons to effector cells, such as muscles or glands.

5. Plants and their Response to Stimulus

Plants lack a centralized nervous system like animals. Instead, they have a decentralized system that allows them to respond to various stimuli. Plants possess specialized cells called receptor cells that can detect stimuli such as light, gravity, touch, and chemicals. These receptor cells are found in different parts of the plant, including the roots, stems, and leaves.

6. Plant Response Mechanisms

Plants respond to stimuli through various mechanisms, including tropisms, nastic movements, and growth responses. Tropisms are growth movements in response to a stimulus, such as phototropism (response to light) or gravitropism (response to gravity). Nastic movements are non-directional responses to stimuli, such as the opening and closing of flowers or leaves. Growth responses involve changes in growth patterns, such as the growth of tendrils to support climbing plants.

7. Differences between Animals and Plants

The action due to nervous tissue in animals is different from the response to stimulus in plants in several ways:

- Animals have a centralized nervous system, while plants have a decentralized system.
- Animals can generate specific and coordinated responses through the transmission of electrical signals along neurons, while plants exhibit more generalized and less coordinated responses.
- Animals have specialized sensory receptors that detect stimuli, while plants have receptor cells distributed throughout their tissues.
- Animals can exhibit complex behaviors and rapid responses, while plant responses are generally slower and less dynamic.
- Animals can learn and adapt their responses based on experience, while plants have limited ability to learn or modify their responses.

In conclusion, the action due to nervous tissue in animals is characterized by a centralized nervous system, specialized neurons, and coordinated responses. On the other hand, plant responses to stimuli are decentralized, involve specialized receptor cells, and result in tropisms,

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