Types of Coordination – 25 Most Important and Repeated MCQs with Answers

Coordination in living organisms is very important to maintain balance, control, and communication between different organs. In humans, coordination mainly occurs through two systems:

  • Nervous coordination → Fast and short-lived, controlled by neurons.

  • Chemical (hormonal) coordination → Slow but long-lasting, controlled by hormones.

Below are the 25 most important and repeated MCQs on types of coordination, very helpful for MDCAT, CSS, PMS, and other entry tests.

MCQs on Types of Coordination

1. Coordination in organisms is mainly carried out by:
A) Skeletal system
B) Circulatory system
C) Nervous and endocrine system
D) Excretory system
Answer: C) Nervous and endocrine system

2. Nervous coordination is based on:
A) Hormones
B) Neurons
C) Blood vessels
D) Glands
Answer: B) Neurons

3. Chemical coordination is mainly controlled by:
A) Neurons
B) Muscles
C) Hormones
D) Receptors
Answer: C) Hormones

4. The unit of nervous coordination is:
A) Nephron
B) Neuron
C) Hormone
D) Synapse
Answer: B) Neuron

5. The unit of chemical coordination is:
A) Neuron
B) Hormone
C) Axon
D) Synapse
Answer: B) Hormone

6. Coordination between different parts of the body is necessary for:
A) Growth
B) Homeostasis
C) Excretion
D) Reproduction
Answer: B) Homeostasis

7. Nervous coordination is:
A) Fast and short-lived
B) Slow and long-lasting
C) Both A and B
D) None
Answer: A) Fast and short-lived

8. Hormonal coordination is:
A) Fast and short-lived
B) Slow and long-lasting
C) Fast and long-lasting
D) None
Answer: B) Slow and long-lasting

9. Which of the following acts as both exocrine and endocrine gland?
A) Thyroid
B) Adrenal
C) Pancreas
D) Liver
Answer: C) Pancreas

10. The structural and functional unit of the nervous system is:
A) Synapse
B) Neuron
C) Dendrite
D) Nerve
Answer: B) Neuron

11. Which of the following coordinates voluntary actions?
A) Spinal cord
B) Cerebrum
C) Medulla
D) Hypothalamus
Answer: B) Cerebrum

12. Reflex actions are controlled by:
A) Brain
B) Spinal cord
C) Cerebrum
D) Endocrine glands
Answer: B) Spinal cord

13. Which system controls involuntary actions like heartbeat and breathing?
A) Sympathetic nervous system
B) Somatic nervous system
C) Skeletal system
D) Endocrine system
Answer: A) Sympathetic nervous system

14. Hormones are secreted directly into:
A) Ducts
B) Blood
C) Lymph
D) Neurons
Answer: B) Blood

15. Which of the following is not a hormone?
A) Insulin
B) Thyroxine
C) Adrenaline
D) Pepsin
Answer: D) Pepsin

16. Which gland is called the "master gland"?
A) Thyroid
B) Adrenal
C) Pituitary
D) Pancreas
Answer: C) Pituitary

17. Nervous system uses _______ signals for coordination.
A) Chemical
B) Electrical
C) Mechanical
D) Hormonal
Answer: B) Electrical

18. Chemical coordination is more important for:
A) Quick response
B) Long-term changes like growth
C) Reflex actions
D) Nerve impulse conduction
Answer: B) Long-term changes like growth

19. Which hormone controls blood sugar level?
A) Thyroxine
B) Insulin
C) Adrenaline
D) Cortisol
Answer: B) Insulin

20. Which part of the brain controls coordination and balance?
A) Cerebrum
B) Cerebellum
C) Medulla
D) Thalamus
Answer: B) Cerebellum

21. Endocrine glands are also called:
A) Ductless glands
B) Duct glands
C) Nerve glands
D) Reflex glands
Answer: A) Ductless glands

22. Which of the following hormones is secreted during stress?
A) Thyroxine
B) Adrenaline
C) Insulin
D) Glucagon
Answer: B) Adrenaline

23. Nervous coordination is transmitted in the form of:
A) Hormones
B) Electrical impulses
C) Plasma
D) Enzymes
Answer: B) Electrical impulses

24. Coordination in plants is mainly achieved by:
A) Nervous system
B) Hormones (plant hormones)
C) Enzymes
D) Leaves
Answer: B) Hormones (plant hormones)

25. Which hormone is responsible for “fight or flight” response?
A) Thyroxine
B) Insulin
C) Adrenaline
D) Glucagon
Answer: C) Adrenaline

Conclusion

Coordination in living organisms is essential for survival and proper functioning of the body. The nervous system provides quick and short-term responses, while the endocrine system provides slow but long-term regulation through hormones. Understanding these MCQs will help you prepare effectively for biology exams and entry tests.

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