Monocytes

Q. Macrophages are phagocytic cells which are derived from

1. lymphocytes
2. basophils
3. monocytes
4. eosinophils

Q. Some mature cells even lack nuclei, e.g., erythrocytes of many mammals and sieve tube cells of vascular plants. Would you consider these cells as ‘living’?

Q. Some mature cells even lack nuclei, e.g., erythrocytes of many mammals and sieve tube cells of vascular plants. Would you consider these cells as ‘living’?

Q. Macrophages are phagocytic cells which are derived from

1. lymphocytes
2. basophils
3. eosinophils
4. monocytes

Q. Certain types of leukocytes (WBCs) like polymorphonuclear leukocytes (PMNL - neutrophils) and natural killer cells in the blood are cellular barriers, which provide innate immunity in humans.

Q. Plasma cells are

1. inactive T-cells carried in the plasma
2. B-cells that are actively secreting antibody
3. formed from blood plasma
4. the same as memory cells

Q. Consider the following statement with two blanks as A and B.

“______A_______ is a cellular barrier which directly kills _____B______ cells.

The correct option is

1. 
   A - RBCs, B - viral
   
2. A - Natural killer cells, B - bacterial
3. A - Thrombocyte, B - bacterial
4. A - Basophil, B - cancer

Q. The life span of human granulocytic WBC is approximately

1. Between 2 to 3 months
2. More than 4 months
3. Less than 10 days
4. Between 13 to 20 days

Q. T-cells in lymph nodes

1. occur predominantly in the medullary region
2. are only of the cytotoxic type
3. are phagocytic
4. are absent in Di George syndrome

Q. Memory cells are formed from

1. T-lymphocytes
2. Erythropoietic stem cells
3. B-lymphocytes
4. Monocytes

Q.

_______________ fights against infections.

1. RBC

2. WBC

3. Platelets

4. none

Q.

What are bursa lymphocytes?

1. B-Lymphocyte

2. T-Lymphocyte

3. RBC

4. Neutrophils

Q. Consider the following statement with two blanks as A and B.

“______A_______ is a cellular barrier which directly kills _____B______ cells.

The correct option is

1. A - Thrombocyte, B - bacterial
2. 
   A - RBCs, B - viral
   
3. A - Basophil, B - cancer
4. A - Natural killer cells, B - bacterial

Q. Lifespan of leukocytes (WBCs) is found to be

1. 24 hours
2. 2 weeks
3. Lifetime
4. 125 days

Q. A monocyte has

1. A bean-shaped nucleus and is a large cell
2. A bean-shaped nucleus and is a small cell
3. A lobed nucleus and blue cytoplasm
   
4. A lobed nucleus and red cytoplasm
   

Q. A monocyte has

1. A bean-shaped nucleus and is a small cell
2. A lobed nucleus and blue cytoplasm
   
3. A lobed nucleus and red cytoplasm
   
4. A bean-shaped nucleus and is a large cell

Q. RBCs are

1. Undifferentiated cells.
2. Dead cells.
3. Dedifferentiated cells.
4. Differentiated cells.

Q. Macrophages are phagocytic cells which are derived from

1. lymphocytes
2. basophils
3. eosinophils
4. monocytes