Neural Control and Coordination

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.

Match List-I with List-II Choose the correct answer from the options given below:

1. A-III, B-I, C-IV, D-II
2. A-I, B-IV, C-II, D-III
3. A-IV, B-III, C-II, D-I
4. A-II, B-III, C-I, D-IV

The parts of human brain that help in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:

1. Corpora quadrigemina and hippocampus
2. Brain stem and epithalamus
3. Corpus callosum and thalamus
4. Limbic system and hypothalamus

Match List I with List II with respect to human eye.

1. A-IV, B-III, C-II, D-I
2. A-I, B-IV, C-III, D-II
3. A-II, B-I, C-III, D-IV
4. A-III, B-I, C-IV, D-II

Select the incorrect statement regarding synapses :

1. The membranes of presynaptic and postsynaptic neurons are in close proximity in an electrical synapse.
2. Electrical current can flow directly from one neuron into the other across the electrical synapse.
3. Chemical synapses use neurotransmitters.
4. Impulse transmission across a chemical synapse is always faster than that across an electrical synapse.

Match List-I with List-II : Choose the correct answer from the options given below :

1. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
3. (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
4. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

Match the following columns and select the correct option.

1. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
3. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Which part of the brain is responsible for thermoregulation?

1. Corpus callosum
2. Medulla oblongata
3. Cerebrum
4. Hypothalamus

Which of the following statements is correct?

1. Cornea is convex, transparent layer which is highly vascularised
2. Cornea consists of dense matrix of collagen and is the most sensitive portion of the eye.
3. Cornea is an external, transparent and protective proteinaceous covering of the eye-ball
4. Cornea consists of dense connective tissue of elastin and can repair itself.

Nissl's bodies are mainly composed of

1. free ribosomes and RER
2. proteins and lipids
3. DNA and RNA
4. nucleic acids and SER