Tag: role of blood in transport

Questions Related to role of blood in transport

Select the correct option:

Read the following statements and select the correct option:
(i) Blood cells secrete fibres of structural proteins called collagen and elastin.
(ii) Neuroglial cells protect and support the nephrons.
(iii) Osteocytes are present in spaces called lacunae.
(iv) Straited muscle fibres are bundled together in a parallel fashion.
(v) Biceps are involuntary and striated

  1. Statements (iii) and (iv) are incorrect

  2. Statement (ii) and (iv) are incorrect

  3. Statement (i) and (iii) are incorrect

  4. Statement (i), (ii) and (v) are incorrect


Correct Option: D
Explanation:

The structural proteins collagen and elastin are present in white collagen fibres and yellow elastic fibres respectively, which are connective tissue fibres. Neuroglial cells are specialised cells found in the brain and spinal cord supporting the neurons and their firbres. The muscles of biceps are voluntary and striated.

The least abundant cells in the human blood among the following are

  1. Neutrophils

  2. Monocytes

  3. Erythrocytes

  4. Eosinophils


Correct Option: A

Most carbon dioxide in blood is in the form of

  1. carbon dioxide

  2. carbonic acid

  3. carbon monoxide

  4. hydrogencarbonate


Correct Option: D
Explanation:

Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in solution; (ii) buffered with bicarbonate and (iii) bound to proteins, particularly haemoglobin. Majority of the carbon dioxide in the blood is carried by means of a bicarbonate buffer system. So, the correct option is 'hydrogen carbonate'.

The function of blood is to

  1. Absorb nutrients

  2. Transport gases

  3. Produce food

  4. Both B and C


Correct Option: B
Explanation:

Blood performs many important functions within the body. These functions include the supply of oxygen to tissues (bound to hemoglobin, which is carried in red cells), the supply of nutrients such as glucose, amino acids, and fatty acids (dissolved in the blood or bound to plasma proteins e.g., blood lipids), transport of gases etc.

Therefore, the correct answer is option B.

By what name is the liquid medium of blood Known as?

  1. waste (excretory) substance

  2. Blood particle

  3. plasma

  4. Waste material


Correct Option: A

How blood maintains water balance in the body ?

  1. By regulating the pH of the body

  2. By bringing constant exchange of water between circulating blood and tissue fluid

  3. By transporting the excretory material

  4. All of the above


Correct Option: B
Explanation:

Blood maintains water balance in the body by bringing constant exchange of water between circulating blood and tissue fluid. Regulating pH and transportation of excretory material are other functions performed by blood.

Blood carries

  1. Oxygen

  2. Waste

  3. Food

  4. All of the above


Correct Option: D
Explanation:
The blood transports oxygen from the lungs to the cells of the body, where it is needed for metabolism. Blood also provides the cells with nutrients, transports hormones and removes waste products
So, the correct answer is 'All of the above'

What fraction of your body is water? 

  1. 1/4

  2. 2/3

  3. 1/2

  4. 1/3


Correct Option: B
Explanation:

About 2/3 of the average human body is water, mostly within the cells. The amount of water in the human body ranges from 50-75%. The average adult human body is 50-65% water, averaging around 57-60%. The percentage of water in infants is much higher, typically around 75-78% water, dropping to 65% by one year of age. Thus, option B is correct.

Substances transported by blood are..............

  1. Food materials

  2. Excretory materials

  3. Hormones

  4. All of the above


Correct Option: D
Explanation:
Blood Is an important fluid connective tissue which circulates throughout the body. It transports food, waste, hormones, oxygen etc. throughout the body.

Which of the following is not a function of blood ?

  1. Transport of food materials

  2. Transport of oxygen

  3. Transport of excretory materials

  4. None of these


Correct Option: D
Explanation:

Blood Is an important fluid connective tissue which circulates throughout the body. It performs some very important functions like transport of oxygen from lungs to the cells, transport of food material, Transport of excretory material, Transport of other substances and Transport of cell wreckage. etc.