Mastering Control and Coordination
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Questions and Answers

Draw a neat diagram of a neuron and label (i) dendrite and (ii) axon.

The diagram of a neuron should show the cell body, dendrites, axon, and synaptic terminals. The dendrites receive signals from other neurons, while the axon transmits signals to other neurons.

Which part of the human brain is responsible for maintaining the posture and balance of the body?

The cerebellum, which is part of the hindbrain, is responsible for maintaining the posture and balance of the body.

What are the two types of movements seen in plants?

The two types of movements seen in plants are nastic movements and tropic movements.

Give an example of a nastic movement in plants.

<p>An example of a nastic movement in plants is the closing of leaves in response to touch stimulus in the 'touch me not' plant.</p> Signup and view all the answers

What are plant hormones?

<p>Plant hormones, or phytohormones, are chemical substances produced naturally in plants that regulate various physiological processes.</p> Signup and view all the answers

Study Notes

Neuron Structure

  • A neuron consists of multiple parts including dendrites and axons.
  • Dendrites: Branch-like structures that receive signals from other neurons.
  • Axon: A long, thin structure that transmits signals away from the cell body to other neurons or muscles.

Human Brain Functions

  • Forebrain: The main thinking part of the brain, encompassing the cerebrum and olfactory lobes.
  • Cerebellum: Part of the hindbrain, responsible for maintaining posture and balance throughout the body.

Plant Movements

  • Nastic Movements:
    • Non-directional and fast movements independent of growth.
    • Example: Closing of leaves in response to touch in the 'touch me not' plant.
  • Tropic Movements (Tropism):
    • Directional and slow movements due to growth.
    • Example: Movement of plant parts in response to light.

Plant Hormones

  • Plant hormones, or phytohormones, are naturally occurring chemical substances in plants that regulate growth and development.

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Description

Test your knowledge on control and coordination with this quiz! Learn about the structure of a neuron and identify its different parts. Discover which part of the human brain is responsible for thinking and maintaining posture. Explore the types of movements seen in plants and provide examples. Challenge yourself and improve your understanding of control and coordination in living organisms.

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