Tag: biology

Questions Related to biology

Vagus nerve is

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Parasympathetic nerve

  2. Sympathetic nerve

  3. X cranial nerve

  4. V cranial nerve

Show answer
Correct Option: C

Ratio of N$a^+$ and $K^+$ ions across nerve membrane is

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. 50: 40

  2. 60 : 30

  3. 30 : 10

  4. 10 : 35

Show answer
Correct Option: D

In an axon, nerve impulse travels

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Away from cyton

  2. Towards cyton

  3. Both away and towards cyton

  4. Not known

Show answer
Correct Option: A

Depolarisation of nerve cell involves

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Influx of $K^+$

  2. Influx of N$a^+$

  3. Influx of C$a^{2+}$ and Cl

  4. Efflux of N$a^{2+}$

  5. Efflux of C$a^{2+}$ and Cl

Show answer
Correct Option: B

In resting stage of neuron, diffusion due to concentration gradient will drive

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. $K^+$ into cell

  2. $K^+$and N$a^+$ out of cell

  3. N$a^+$ into cell

  4. N$a^+$ out of cell

Show answer
Correct Option: C

Nerve impulse travels as

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Mechanical impulse

  2. Chemical impulse

  3. Electrical impulse

  4. Magnetic impulse

Show answer
Correct Option: C

At resting stage nerve cell has

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Low $K^+$ outside and high N$a^+$ inside

  2. High $K^+$ inside and high N$a^+$ outside

  3. High $K^+$ inside and low N$a^+$ outside

  4. High $K^+$ outside and low N$a^+$ inside

Show answer
Correct Option: B

Nerve axon takes part in

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Receiving impulse

  2. Transformation of energy

  3. Conduction of impulse

  4. Providing energy for impulse transmission

Show answer
Correct Option: C

A polarised neuron is the one that is

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. Conducting stimulus

  2. At resting potential

  3. Having action potential

  4. None of the above

Show answer
Correct Option: B

During conduction of nerve impulse

biology coordination generation and conduction of nerve impulse generation of nerve impulse neurons and synapses

  1. N$a^+$ moves out of axoplasm

  2. N$a^+$ moves into axoplasm

  3. $K^+$ moves into axoplasm

  4. C$a^{2+}$ moves into axoplasm

Show answer
Correct Option: B