Platelets

Q.

What is the role of thromboplastin in blood clotting?

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

1. Neutrophils
2. Thrombocytes
3. Erythrocytes
4. Leucocytes

Q. Mention how the teriminal blood vessels are different from the other blood vessels.

Q.

Fill in the following chart with the correct option.

1. None of these

2. i- Eosinophils, ii- Monocytes, iii- Granulocytes

3. i- Granulocytes, ii- Monocytes, iii- Eosinophils

4. i- Granulocytes, ii- Eosinophils, iii- Monocytes

Q. Life span of blood platelets in mammals is about _______.

1. 3 days
2. 8 days
3. 1 month
4. 20 days

Q.

Fill in the following chart with the correct option.

1. i- Granulocytes, ii- Eosinophils, iii- Monocytes

2. None of these

3. i- Eosinophils, ii- Monocytes, iii- Granulocytes

4. i- Granulocytes, ii- Monocytes, iii- Eosinophils

Q. What will happen if there are no platelets in the blood?
[3 Marks]