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Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

Interstitial fluid resembles

  1. Fresh water

  2. Ground water

  3. Sea water

  4. None of the above.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Interstitial fluid is the fluid that surrounds cells in the body. It is often compared to ground water because it fills the spaces between cells, similar to how ground water fills the spaces between soil particles.

Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

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

  1. Fibrinogen

  2. Platelets

  3. Calcium

  4. Prothrombin.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

According to the classic physiology text by Best and Taylor, platelets are considered to be involved in the formation of the platelet plug, but they are distinct from the chemical clotting factors like fibrinogen, prothrombin, and calcium that form the fibrin mesh.

Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

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

  1. Blood platelets

  2. Eosinophils

  3. Neutrophils

  4. Lymphocytes.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When a blood vessel is injured, blood platelets aggregate at the site and release thromboplastin, which initiates the extrinsic pathway of the blood clotting cascade.

Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

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.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thrombocytes (platelets) are essential for blood coagulation. A deficiency in their number, known as thrombocytopenia, impairs the clotting mechanism and can lead to excessive bleeding.

Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

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
Reveal answer Fill a bubble to check yourself
D Correct answer
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.

Multiple choice biology blood circulatory system of human blood clotting platelets and their function defence against infectious disease

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.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nutrients absorbed via blood capillaries follow the hepatic portal system route to the liver before reaching the heart. Glucose, galactose, L-amino acids, D-amino acids, and fructose all take this route, whereas long-chain fatty acids are absorbed into lacteals and enter the lymphatic system first. Thus, five of the listed nutrients follow this specific venous pathway.