RBC

Q.

A person with type AB blood is considered universal recipient would have __(i)___ antigens on red blood cells, and __(ii)____ antibodies in the plasma.

1. (i) A and B, (ii) B; neither anti-A nor anti-B

2. (i) B, (ii) anti-A

3. (i) Neither A nor B; (ii)both anti-A and anti-B

4. (i) A, (ii) anti-B

Q. The reason behind why mature human RBCs cannot divide or metabolise is

1. because they carry oxygen
2. because they are present in blood stream
3. because they lack nucleus
4. because they are biconcave in shape

Q.

The process of formation of RBCs is called

1. Leucopoiesis

2. None of the above

3. Poikegenesis

4. Erythropoiesis

Q.

Haematopoiesis is the process of

1. Destruction of RBCs in spleen

2. Production and maturation of blood cells in bone marrow

3. None of the above

4. Oxygenation of blood in Lungs

Q.

What will be the effect of mountain climbing on your RBCs?

1. Increase in size

2. Decrease in size

3. Increase in number

4. Decrease in number

Q.

Haematopoiesis is the process of

1. Production and maturation of blood cells in bone marrow

2. None of the above

3. Oxygenation of blood in Lungs

4. Destruction of RBCs in spleen

Q. __________ are the most abundant blood cells in human blood.

1. B cells
2. Platelets
3. White blood cells
4. Red blood cells

Q.

Choose the correct statement about human RBC.

1. They carry about 20-25 percent of $C{O}_2$.

2. They transport about 80% oxygen and the rest 20% is transported in dissolved state in plasma.

3. They transport 99.5% oxygen.

4. They do not carry CO2 at all.

Q.

if o blood group has no antigens isnt it rh-ve?

Q. Which two of the following changes (i - iv) usually tend to occur in the plain dwellers when they move to high altitudes (3, 500 m or more)?
(i) Increase in red blood cell size
(ii) Increase in red blood cell production
(iii) Increase breathing rate
(iv) Increase in thrombocyte count.
Changes occurring are

1. (ii) and (iii)
2. (iii) and (iv)
3. (i) and (iv)
4. (i) and (ii)

Q. Match column-I with column-II and select the correct option.

$\begin{array}{cccc}& \text{Column-I}& & \text{Column-II}\\ \text{a.}& \text{Monocytes}& \text{(i)}& \text{20-25\% of total WBCs, large rounded nucleus}\\ \text{b.}& \text{Eosinophils}& \text{(ii)}& \text{Nucleus bean shaped, largest of all leucocytes}\\ \text{c.}& \text{Neutrophils}& \text{(iii)}& \text{Bilobed nucleus}\\ \text{d.}& \text{Lymphocytes}& \text{(iv)}& \text{Most abundant leucocytes, many lobed nucleus}\end{array}$

1. a(ii), b(iii), c(iv), d(i)
2. a(i), b(ii), c(iii), d(iv)
3. a(i), b(iii), c(iv), d(ii)
4. a(ii), b(iv), c(iii), d(i)

Q.

why we call RBC, Platelets, WBC formed elements?