Biology 1525 MCQs [All-Courses]

Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

Under resting membrane potentials:

A Outer surface of neuron is more positive

B Inner surface of neuron is more positive

C Both of these surfaces are equally positive

D none of these.

Review Detailed Answer

Correct Answer: Outer surface of neuron is more positive

What is the function of synapse________________?

A To allow nerve impulse to move in backward direction

B To decrease the speed of nerve impulse

C To stop the nerve impulse

D To provide cytoplasmic connection between neurons.

Review Detailed Answer

Correct Answer: To decrease the speed of nerve impulse

Microscopic gaps between the neuron endings are called__________?

A Transmitters

B Synapses

C Pores

D Nodes

Review Detailed Answer

Correct Answer: Synapses

Which of the following cytoplasmic extensions carry the message toward the cell body___________?

A Dendrites

B Axon

C Both of these

D none of these

Review Detailed Answer

Correct Answer: Dendrites

Which of the following neuron has a single long dendron?

A Sensory neuron

B Motor neuron

C Associative neuron

D none of these.

Review Detailed Answer

Correct Answer: Sensory neuron

In which of the following neurons length of dendrite is greater than axon_______________?

A Sensory neuron

B Motor neuron

C Associative neuron

D none of these.

Review Detailed Answer

Correct Answer: Sensory neuron

Which of the following transmits nerve impulse from receptors to central nervous system?

A Sensory neuron

B Motor neuron

C Associative neuron

D none of these.

Review Detailed Answer

Correct Answer: Sensory neuron

Which of the followings is missing from the nervous system of planaria_____________?

A Ganglia

B Longitudinal nerves

C Lateral nerves

D none of these

Review Detailed Answer

Correct Answer: none of these

Co-ordination in man is brought about by___________?

A Nervous system

B Endocrine system

C Both of these

D none of these.

Review Detailed Answer

Correct Answer: Both of these

Hydra has___________?

A Brain

B Nerves

C Neuron-cells

D All of these

Review Detailed Answer

Correct Answer: Neuron-cells

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Biology 1525 MCQs [All-Courses]

All Topics 1525

All Topics 1525

Under resting membrane potentials:

What is the function of synapse________________?

Microscopic gaps between the neuron endings are called__________?

Which of the following cytoplasmic extensions carry the message toward the cell body___________?

Which of the following neuron has a single long dendron?

In which of the following neurons length of dendrite is greater than axon_______________?

Which of the following transmits nerve impulse from receptors to central nervous system?

Which of the followings is missing from the nervous system of planaria_____________?

Co-ordination in man is brought about by___________?

Hydra has___________?