Heat Regulation

Q.

What are poikilotherms and homeotherms?

Q.

Where is the principal heat-regulating centre of the body located?

1. Skin

2. Hypothalamus

3. Hair

4. Sabeceous gland

Q.

Which animal has no heart and brain?

Q.

What happens to the working of enzymes in the body when the temperature is lowered?

1. The enzymes will be destroyed.

2. Speed up the working of enzymes.

3. slow down the working of enzymes.

4. None of the above.

Q.

Differentiate between : Thalamus and Hypothalamus.

Q.

Are humans endothermic?

Q.

Sweat contains water and ___.

Q.

In which of the following parts of the human body are sweat glands absent?

1. Scalp

2. Armpits

3. Lips

4. Palms

Q.

Explain how skin helps in thermoregulation.

Q. Where is the principal heat-regulating centre located?

1. Skin
2. Hypothalamus
3. Sabeceous gland.
4. Hair

Q.

Which one of these is a homeotherm?

1. Lizards

2. Frogs

3. Human beings

4. Snakes

Q.

What are the precautions that we must take to fight against heat stroke?

1. Taking a little more of salt in food

2. Reduce salt intake

3. Both A & B

4. Drinking lot of water

Q.

Give an example of human homeostatic mechanisms.

Q.

What is the normal body temperature of a healthy person?

Q.

What is Neuroscience all about and how I can learn more about it ?

Q.

Name the gland which secretes sweat.

Q. The statements given below have some parts printed in bold face. In case these parts are incorrect, rewrite these in correct form.
(f) Increased body heat causes vasoconstriction.

Q.

what are enzymes ??

Q.

When is a body said to be in homeostasis?

Q.

Which part of the brain is involved in thermoregulation?

Q.

What happens to the working efficiency of enzymes at very low temperature?

1. Enzyme action slows down

2. Enzymes get destroyed completely

3. Enzymes get denatured

4. All of these

Q.

___ is the property by which biological systems maintain a stable internal environment.

Q.

Mammals and birds have an internal heat producing mechanism. Hence, they are called ___.

Q. Name the property by which biological systems maintain a stable internal environment.

1. Homeostasis
2. Metastasis
3. Apoptosis
4. Biogenesis

Q.

What is homeostasis?How does a cell maintain it?

Q.

Define homeostasis

Q. Assertion :Skin is the sensory organ for touch and is also the largest sense organ Reason: Our sense of touch is associated with general sensation of contact, pressure, heat, cold and pain.

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. Both Assertion and Reason are incorrect

Q.

An organism that is dependent on external sources of body heat is called___.

Q. Where do you find the largest number of sweat glands in man ?

Q. Name the principal body heat regulating centre in our brain. <!--td {border: 1px solid #cccccc;}br {mso-data-placement:same-cell;}--> [Review Questions - Pg No.134 - VSAQ - 1]