Nerve Impulse

Q. Difference between the NADP and NADPH2

Q.

What is motor end plate also known as?

Q. In a neuron, the electrical impulse is converted to chemical signals at the _________ .

1. nerve ending
2. cell body
3. dendrite
4. axon

Q.

Is epinephrine an amino acid derivative hormone?

Q. What is a neuromuscular junction?

1. A gap between two neurons
2. A gap between axons
3. The synapse between a sensory neuron and a skeletal muscle cell
4. The synapse between a motor neuron and a skeletal muscle cell

Q.

What are the short branches projecting out of the cell body and branching repeatedly called?

Q.

Is cortisol the same as adrenalin?

Q.

how HCl activates pepsinogen?

Q.

What is a natural reflex?

Q.

Acetylcholine is a chemical released when a neuron is stimulated by a sensory signal.

1. True

2. False

Q.

What cells secrete Epinephrine and Norepinephrine?

Q.

Which is not true of a synapse?

1. Neurotransmitters affect postsynaptic neurons

2. Two neurons may be involved

3. A synaptic cleft separates the neurons of the synapse

4. Neurotransmitters are released from dendrites

Q.

The message that travels along a neuron is called an __________.

Q.

Response to a stimulus is reflected by a receptor.

1. True
2. False

Q.

How does norepinephrine affect the body?

Q. Mention any one point of difference between Pepsin and Trypsin.

Q.

DifferDiff between Pepsin and trypsin.

Q.

What does troponin do in the resting state?

Q. The longest branch of a neurones is called?

Q. (a) What is a neuron? Draw a labelled diagram of a neuron.
(b) What is a synapse? What happens at the synapse between two neurons? How are the messages carried across a synapse? Explain with the help of a labelled diagram.

Q.

How do humans detect Stimuli?

Q.

What are any three disorders of the nervous system?

Q. The stomach is wired to the brain via the parasympathetic nervous system. Why do you believe is it essential for the brain to communicate with the stomach even though digestion is mostly an involuntary process?

Q. Explain the process of the transport and release of a neurotransmitter with help labelled diagram showing a complete neuron, axon terminal and synapse.

Q. if the nerve ending of one neuron is not connected to the dendrite of the other neuron then how will the impulse pass?

Q.

What is alimentary canal

Give example for plant Harmon which gives growth in plants

Sir/mam

Answer me soon

Q.

Classify the following actions as natural reflex or conditioned reflex:

Removing your hand suddenly when pricked by a thorn.

Q. Parkinsons disease (characterised by tremors and progressive regidity of limbs) is due to degeneration of brain neurons involved in movement control and make use of neurotransmitter

1. Acetylcholine
2. Norepinephrine
3. Dopamine
4. GABA

Q. Assertion :Transmission of the nerve impulse across a synapse is accomplished by neurotransmitters. Reason: Transmission across a synapse usually requires neurotransmitters, because there is small space, the synaptic cleft, that separates one neuron from another.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Assertion is incorrect but Reason is correct.

Q. Alzheimer disease is associated with deficiency of

1. Dopamine
2. Glutamic acid
3. GABA
4. Acetylcholine.