Jamb Biology Questions - The components and functions of the peripheral nervous systems
Question 1:
In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the
- A Movement of auxins away from the region of curvature
- B Even distribution of auxins in all parts of the coleoptile
- C Inhibition of growth by auxins in the region f smaller curvature
- D Concentration of auxins in the region of curvature
- E Absence of auxins in the coleoptile
Question 2:
The response of plants to external stimuli in a non-directional manner is known as
- A Tactic movement
- B Phototropism
- C Geotropism
- D Nastic movement
Question 3:
Which of the following is a homostatic response in humans?
- A Withdrawing the hand from a hot object
- B The mouth getting watery when food is sighted
- C Yawning owing to tiredness
- D Shivering in a cold environment
Question 4:
The transmission of impulses along a nerve fibre is characterized by
- A Hormonal and temperature changes
- B Electrical and ionic changes
- C Hormonal and changes
- D Electrostatic changes
Question 5:
The autonomic nervous system consists of neurons that control the
- A Voluntary muscles
- B Heart beat
- C Tongue
- D Hands