Tag: soldiers of defense

Questions Related to soldiers of defense

Clotting of blood is brought about by

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. RBCs

  2. WBCs

  3. Platelets

  4. Plasma

Show answer
Correct Option: C
Explanation:

Platelets are tiny components in blood that initiate blood clots by releasing thromboplastin at the site of injury. Thromboplastin initiates the process of blood clotting. Thus, the correct answer is option C.

Coagulation of blood in vessels is prevented during normal circulation by

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Heparin

  2. Prothrombin

  3. Plasminogen

  4. Thromplastin

Show answer
Correct Option: A
Explanation:

Heparin is a natural anticoagulant of the body produced in the liver. It is normally found circulating through the bloodstream. It prevents the blood clotting in veins and arteries during normal circulation.

Thus, the correct answer is option A.

Haemophilia is a condition where there is 

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. A failure in the clotting mechanism of blood

  2. A delay in the clotting of blood

  3. No production of haemoglobin in the blood

  4. No production of melanin in the skin

Show answer
Correct Option: A
Explanation:

  • Haemophilia is a group of hereditary genetic disorders in which the body's blood clotting ability fails to stop bleeding if any cut happens.
  • Thus, it is also known as bleeder's disease. One type of haemophilia called haemophilia A happens due to the deficiency of blood clotting factor VIII. 
Therefore, the correct answer is option A.

Which of the metallic ions is essential for blood clotting?

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Na$^+$

  2. Ca$^{++}$

  3. K$^+$

  4. Fe$^{++}$

Show answer
Correct Option: B
Explanation:
Calcium ions along with vitamin K are essential for clotting process as all the reaction in the clotting process take place in the presence of calcium ions. It is very important for the conversion reaction of prothrombin into the thrombin.
Therefore, the correct answer is option B.

Thrombin occurs in vertebrates in 

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. The blood and gives it red colour

  2. The blood and is important for clotting

  3. The liver and is important for bile secretion

  4. The stomach and digests proteins

Show answer
Correct Option: B
Explanation:
Thrombin is a substance formed in one of the steps of clotting process from prothrombin. Thrombin, in turn, converts fibrinogen into fibrin which ultimately forms a clot. 
Thus, the correct answer is option B. 

In human, the prothrombin required for blood clotting is produced in 

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Liver

  2. Stomach

  3. Pancreas

  4. Spleen

Show answer
Correct Option: A
Explanation:

In human, the prothrombin required for blood clotting is produced in the liver in the presence of vitamin K. It gets converted into thrombin in the presence of thromboplastin and thus forms an essential step in the clotting process. 

Therefore, the correct answer is option A.

Heparin in blood is released from  

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Clumped platelets

  2. Mast-cell granules

  3. Non-granulocytes

  4. Granulocytes

Show answer
Correct Option: B
Explanation:
Mast-cell is a type of granulocyte. It contains basophil granules that secrete heparin and histamine in blood. They play important role in wound healing. 
Therefore, the correct answer is option B.

The blood component essential for blood coagulation is

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Albumin

  2. Globulin

  3. Fibrinogen

  4. Vitamins

Show answer
Correct Option: C
Explanation:

Coagulation or clotting is a process where the blood in liquid form turns into a gel. The mechanism involves activation, adhesion and aggregation of platelets and deposition of fibrinogen. Though this is an inactive clotting factor, it helps to clot by the formation of insoluble fibrin.

Therefore, the correct answer is option C.

The function of vitamin K is in 

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Regulation of calcium and phosphorus metabolism

  2. Blood clotting

  3. Respiration

  4. Carbohydrate metabolism

Show answer
Correct Option: B
Explanation:
Vitamin K plays an important role in blood clotting. It is required by the body for the synthesis of prothrombin by the liver. Prothrombin is a plasma protein which gets converted into thrombin during the clotting process and thus helps in clotting mechanism. 
Thus, the correct answer is option B. 

Blood clot inside a blood vessel is known as  

biology soldiers of defense blood clotting and healing of wounds coagulation of blood blood clotting

  1. Thrombosis

  2. Agglutinin

  3. Clot

  4. Thrombus

Show answer
Correct Option: D
Explanation:

A blood clot that forms inside one of your veins or arteries is called a thrombus. A thrombus may also form in your heart. A thrombus that breaks loose and travels from one location in the body to another is called an embolus.

So, the correct option is 'Thrombus'.