2561. Hydra has___________?
✅ C. Neuron-cells
Option A: Brain Option B: Nerves Option C: Neuron-cells Option D: All of these Correct Answer : Neuron-cells Read more
Author: Sheeraz Ahmed – Page 129
2562. Co-ordination in man is brought about by___________?
✅ C. Both of these
Option A: Nervous system Option B: Endocrine system Option C: Both of these Option D: none of these. Correct Answer : Both of these Read more
2563. Which of the followings is missing from the nervous system of planaria_____________?
✅ D. none of these
Option A: Ganglia Option B: Longitudinal nerves Option C: Lateral nerves Option D: none of these Correct Answer : none of these Read more
2564. Which of the following transmits nerve impulse from receptors to central nervous system?
✅ A. Sensory neuron
Option A: Sensory neuron Option B: Motor neuron Option C: Associative neuron Option D: none of these. Correct Answer : Sensory neuron Read more
2565. In which of the following neurons length of dendrite is greater than axon_______________?
✅ A. Sensory neuron
Option A: Sensory neuron Option B: Motor neuron Option C: Associative neuron Option D: none of these. Correct Answer : Sensory neuron Read more
2566. Which of the following neuron has a single long dendron?
✅ A. Sensory neuron
Option A: Sensory neuron Option B: Motor neuron Option C: Associative neuron Option D: none of these. Correct Answer : Sensory neuron Read more
2567. Which of the following cytoplasmic extensions carry the message toward the cell body___________?
✅ A. Dendrites
Option A: Dendrites Option B: Axon Option C: Both of these Option D: none of these Correct Answer : Dendrites Read more
2568. Microscopic gaps between the neuron endings are called__________?
✅ B. Synapses
Option A: Transmitters Option B: Synapses Option C: Pores Option D: Nodes Correct Answer : Synapses Read more
2569. What is the function of synapse________________?
✅ B. To decrease the speed of nerve impulse
Option A: To allow nerve impulse to move in backward direction Option B: To decrease the speed of nerve impulse Option C: To stop the nerve impulse Option D: To provide cytoplasmic connection between neurons. Correct Answer : To decrease the speed of nerve impulse Read more
2570. Under resting membrane potentials:
✅ A. Outer surface of neuron is more positive
Option A: Outer surface of neuron is more positive Option B: Inner surface of neuron is more positive Option C: Both of these surfaces are equally positive Option D: none of these. Correct Answer : Outer surface of neuron is more positive Read more