Tag: biology

Questions Related to biology

Platelets are given in case of

  1. Anaemia

  2. Polycythemia

  3. Thrombocytopenia

  4. Leukemia.


Correct Option: C

Cell fragments of megakaryotes yield

  1. Erythrocytes

  2. Granulocytes

  3. Agranularcytes

  4. Blood platelets/thrombocytes.


Correct Option: D

Interstitial fluid resembles

  1. Fresh water

  2. Ground water

  3. Sea water

  4. None of the above.


Correct Option: B

Which does not play any role in blood clotting according to Best and Taylor

  1. Fibrinogen

  2. Platelets

  3. Calcium

  4. Prothrombin.


Correct Option: B

Life span of blood platelets is

  1. 1 - 2 days

  2. 2 - 3 days

  3. 3 - 4 days

  4. 5 - 9 days.


Correct Option: D

Which one takes part in blood clotting

  1. RBC

  2. WBC

  3. Thrombocytes

  4. Lymphocytes.


Correct Option: C

Thromboplastin required for blood clotting at the place of injury is released by

  1. Blood platelets

  2. Eosinophils

  3. Neutrophils

  4. Lymphocytes.


Correct Option: A

Name the blood cells whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body

  1. Thrombocytes

  2. Erythrocytes

  3. Leucocytes

  4. Neutrophils.


Correct Option: A

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body

  1. Erythrocytes

  2. Leucocytes

  3. Neutrophills

  4. Thrombocytes


Correct Option: D
Explanation:

Thrombocytes are also called Platelets. They are the vital component of blood. It's basic function is to stop bleeding by clumping and clotting blood vessel injuries. Its main function is to contribute to hemostasis that is the process of stop bleeding by adhesion. Reduction in the number of platelets causes clotting disorder and thus loss of blood from the body.

Hence, the correct option is D.

How many of the following nutrients, follow fol-lowing route of absorption
Blood capillaries $\rightarrow$ Mesentric vein $\rightarrow$ Hepatic portal vein $\rightarrow$ Liver $\rightarrow$ Hepatic vein $\rightarrow$ IVC $\rightarrow$ Heart $\rightarrow$ Body
(i) Glucose
(ii) Galactose
(iii) Fructose
(iv) L-amino acids
(v) D-amino acids
(vi) Long chain fatty acids.

  1. Six

  2. Five

  3. Only one

  4. Three.


Correct Option: A