Class 10th Science MCQ Test – Class 10th Science Online Quiz with Score

Q1. The receptors for smell are located in the:

Q2. The primary difference between a reflex action and walking is that reflex action is:

Q3. The hormone insulin is secreted by the:

Q4. Which movement in plants is non-directional and independent of the direction of stimulus?

Q5. Which plant hormone delays the aging of leaves?

Q6. The quick, spontaneous, and involuntary response to a stimulus is called a:

Q7. Which plant hormone is responsible for breaking seed dormancy?

Q8. The control and coordination in plants is mainly achieved by:

Q9. Which of the following is an example of a reflex action?

Q10. The central nervous system (CNS) includes:

Q11. The role of effectors in the nervous system is to:

Q12. The part of the human brain that deals with emotions, learning, and memory is primarily the:

Q13. Which hormone is secreted by the adrenal glands?

Q14. A reflex action is an example of:

Q15. The feedback mechanism that regulates the secretion of hormones like thyroxine is typically:

Q16. What is the general direction of nerve impulse transmission within a neuron?

Q17. The gap between two neurons is called a:

Q18. Which plant hormone promotes cell elongation and is responsible for phototropism?

Q19. Which of the following is an example of an involuntary action controlled by the medulla?

Q20. What is the role of an olfactoreceptor?

Class 10th Science — MCQ Test