Shape of RBC

Q. Examination of the blood of a person suspected of having anemia shows large, immature, nucleated erythrocytes without hemoglobin. supplementing his diet with which of the following is likely to alleviate his symptoms?

1. Riboflavin
2. Iron compounds
3. Thiamine
4. Folic acid and cobalamin

Q. Which of the following vector was used in the first clinical treatment of adenosine deaminase (ADA) deficiency through gene therapy?

1. Bacteriophage
2. Lamda phage
3. Plasmid vector
4. Retroviral vector

Q.

Which of the following type of cells lack nucleus in hormones ?
(a) RBC (b) Neutrophils
(c) Eosinophils (d) Erythrocytes

Q. Does RBC have nucleus?

Q.

Assertion (A) – RBCs are circular and biconcave in shape lacking all cell organelles.

Reason (R) - Circular and biconcave shape increase the surface area for oxygen binding and the lack of organelles results in no self-utilisation of the oxygen being carried.

1. A is correct but R is wrong

2. A is wrong but R is correct

3. Both A and R are correct and R is the correct explanation of A.

4. Both A and R are wrong

Q. Low Ca²⁺ in the body fluid may be the cause of

1. tetany
2. anaemia
3. angina pectoris
4. gout

Q. Adult human RBCs are enucleated. Which of the following statement(s) is/are appropriate explanation for this feature?

1. They do not need to reproduce
2. They are somatic cells
3. They do not metabolize
4. All their internal space is available for oxygen

Q. Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?
(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen transport

1. only (d)
2. only (a)
3. (a), (c) and (d)
4. (b) and (c)

Q. Examination of the blood of a person suspected of having anemia shows large, immature, nucleated erythrocytes without hemoglobin. supplementing his diet with which of the following is likely to alleviate his symptoms?

1. Thiamine
2. Folic acid and cobalamin
3. Riboflavin
4. Iron compounds

Q.

What is the difference in amino acid sequence in amino acid sequence in the B - chain of haemoglobin in a normal person and a sickle cell anaemia person?

Q. Sickle cell anemia is due to

1. Change of amino acid in both alpha and beta chain of hemoglobin
2. Change of amino acid either alpha or beta chain of hemoglobin
3. Change of amino acid in alpha chain of hemoglobin
   
4. Change of the amino acid in beta chain of hemoglobin

Q. Which of the following is correct-

1. Blood = Plasma + RBC +WBC + Platelets
2. Serum = Blood + Fibrinogen
3. Serum = Plasma - Clotting factors
4. Both a and c

Q. Why active tissues have low pCO₂ and high pO₂?

Q. Identify the incorrect match between protein and its role.

1. Keratin - Structural component of hair
2. Immunoglobins - Protection of body against diseases
3. Haemoglobin - Transport of oxygen in muscles
4. Thrombin - Blood clotting

Q. A woman suffering from weakness, fatigue and bruising, got her blood report with increased haemoglobin level (greater than 16.5 g/dL). She was diagnosed with

1. Thrombocytopenia
2. Cardiac arrest
3. Anaemia
4. Polycythemia

Q.
The deficiency of haemoglobin causes

1. Blood cancer
2. Anaemia
3. Weakness
4. Flow blood

Q. Adult human RBCs are enucleated. Which of the following statement(s) is/are the most appropriate explanation for this feature?
(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolise
(d) All their internal space is available for oxygen transport

1. Only (a)
2. (a), (c) and (d)
3. (b) and (c)
4. only (d)