Plumbing System

Q.

Exchange of gases between the blood and the tissues of the body takes place by which of the following mechanisms?

1. Breathing

2. Diffusion

3. Active transport

4. Counter-current exchange

Q.

Choose the odd one out.
diffusion, respiratory gases, alveoli, capillary network.

Q.

The major role of the circulatory system is

1. To break down food so that it can be used by the body.

2. To give the body shape and support.

3. To provide a medium for transportation, elimination of waste and maintain homeostasis.

4. To help in the absorption of the digested food.

Q.

Which of the following forms the circulatory system?

1. Blood vessels

2. Heart

3. Blood

4. Nephron

Q.

Exchange of gases between the blood and the tissues of the body takes place by which of the following mechanism?

1. Breathing

2. Diffusion

3. Active transport

4. Counter-current exchange

Q.

Name a waste product of plants which is used as medicine.

Q.

The major role of the circulatory system is

1. to break down food so that it can be used by the body.

2. to provide a medium for transportation, elimination of waste and maintaining homeostasis.

3. to give the body shape and support.

4. to help in the absorption of digested food.

Q. What is the function of the blood vessels and capillaries?
They pump blood to the heart.
They filter impurities from the blood.
They carry blood to all parts of the body.
They carry messages from the brain to the muscles.

Q.

Animals do NOT excrete waste in which of the following forms?

1. Uric acid

2. Urea

3. Ammonia

4. Hydrochloric acid

Q. Which animal does not require blood for transportation?

1. Human
2. Fish
3. Hydra
4. Bird

Q. Which of the following organ is responsible for enriching the blood with oxygen?

1. Heart
2. Kidneys
3. Lungs
4. Brain

Q. Exchange of gases between the blood and the tissues of the body takes place by which of the following mechanism?

1. Breathing
2. Diffusion
3. Active transport
4. Counter-current exchange