Tag: blood and lymph

Questions Related to blood and lymph

How blood helps in the transport of heat ?

  1. It transports heat from alimentary canal to different body parts.

  2. Export heat from endocrine glands to the places of use.

  3. Allows transfer of heat from deeper tissues to the surface of the body where it can be lost.

  4. All of the above


Correct Option: C
Explanation:

Blood allows heat transfer of heat from deeper tissues to the surface of the body where it can be lost. Hormones are carried by blood from endocrine glands to place of use, Also glucose and other nutrients are transported from alimentary canal through blood to different cells in the body.

How blood maintains the physiological co-operation of the body?

  1. By changing the temperature of the body

  2. By producing nutrients

  3. By circulating from one part to other

  4. All of the above


Correct Option: C
Explanation:

The main function of the cardiovascular system is, therefore, to maintain blood flow to all parts of the body, to allow it to survive. Veins deliver used blood from the body back to the heart. In the lungs, the blood picks up oxygen that we breathe in and gets rid of carbon dioxide, which we breathe out.


So, the correct option is 'By circulating from one part to other'.

Which of the following is a function of blood?
(a) Transport of food materials.
(b) Transport of hormones.
(c) Transport of heat.

  1. One statement is correct.

  2. Two statements are correct.

  3. All statements are correct.

  4. No statement is correct.


Correct Option: C
Explanation:

Blood transports the digested food from the alimentary canal to the tissue. Blood also distribute hormones secreted by the endocrine glands. The blood helps in keeping the temperature of the body uniform by distributing heat. Thus option C is the correct answer. 

Blood protects the body from infections and diseases with the help of

  1. WBCs

  2. RBC

  3. Platelets

  4. None of the above


Correct Option: A
Explanation:

Blood performs the important task of protecting the body from the infections and disease-causing bacteria. The white blood cells found in blood are responsible for safeguarding the different organs of the body by producing antibodies and proteins which are capable of fighting off and killing the germs and viruses that cause serious damage to the body cells. The platelets present in blood handle the task of limiting blood loss in the wake of an injury by helping the blood to clot quickly. 

Lymph contains

  1. Only leucocytes

  2. 99% lymphocytes, no RBCs and other leucocytes

  3. 50% leucocytes and 50% erythrocytes

  4. 99% erythrocytes and 1% small lymphocytes


Correct Option: B
Explanation:

Lymph has no RBCs but about 99% are lymphocytes usually of the small type, the remaining 1% is made up of leucocytes.

Blood of insects

is colourless



Reason : The blood

of insect does not play any role in transport of oxygen.






  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion

  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion

  3. If the assertion is true but the reason is false

  4. If both the assertion and reason are false

  5. If the assertion is false but reason is true


Correct Option: B
Explanation:

(b) Blood is colourless in insects. insects have tracheal respiration. It is carried on by an extensive system of inter-communicating tubes called trachea.





Normal glucose level of blood is

  1. 10 gm/litre (1%)

  2. 1 gm/litre (0.1%)

  3. 100 gm/litre (10%)

  4. 0.1 gm/litre (0.01%).


Correct Option: B

The pH of the avian blood is maintained by ______________.

  1. $HCO{ _3}{^-}$

  2. $H _2PO{ _4}{^ _}$

  3. $CH _3COO^-$

  4. $Cl^-$


Correct Option: A

Normal blood glucose level is

  1. 50-80 mg/I00 ml

  2. 50-100 m/1000 ml

  3. 80-100 mg/100 ml

  4. 80-300 mg/1000 ml.


Correct Option: C

Normal blood level of calcium in adults is

  1. 20-30 mg/dl

  2. 15.5-20.0 mg/dl

  3. 8.5-10.5 mg/dl

  4. 5 mg/dl.


Correct Option: C