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Q1 (UPPCS/2025) Science & Technology › Basic Science (Physics, Chemistry, Biology)

Which of the following statements with reference to 'blood' is/are correct ?
1. Blood is composed of plasma and different types of cells.
2. The presence of haemoglobin makes blood appear red.
Select the correct answer from the code given below :
Code :

Result
Your answer: —  Â·  Correct: D

Explanation

Both statements are correct based on basic biological principles of the human circulatory system.

  • Statement 1: Blood is a fluid connective tissue consisting of a fluid matrix called plasma (about 55%) and formed elements (about 45%). The formed elements include different types of cells: Red Blood Cells (RBCs/Erythrocytes), White Blood Cells (WBCs/Leukocytes), and Platelets (Thrombocytes).
  • Statement 2: RBCs contain a red-colored, iron-rich complex protein called haemoglobin. When haemoglobin binds with oxygen, it gives blood its characteristic bright red color. The interaction between iron in the haemoglobin molecule and oxygen is responsible for this pigmentation.
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SIMILAR QUESTIONS

IAS · 2002 · Q26 Relevance score: 3.64

With reference to the blood in a normal person, which one of the following statements is correct?

CGS · 2026 · Q54 Relevance score: 2.97

Consider the following statements :

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II. Blood of 'AB' group has both 'A' and 'B' antigens in RBCs.
III. Blood of 'AB' group cannot be given to a person having 'A' blood group.
IV. Blood of 'O' group does not possess any antibody in plasma.

Which of the statements given above are correct?

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Which one of the following statements about blood elements is correct?

CDS-I · 2003 · Q112 Relevance score: 1.35

With reference to a normal human being consider the following statements : I. Sugar appears in the urine if blood sugar exceeds 180 mg per 100 ml. II. Liver synthesises cholesterol and secretes it into blood. III. Blood plasma contains 92 per cent water and 8 per cent solids. IV. The total number of erythrocytes per microlitre of blood in adult male human beings averages 5-million. Which of these statements are correct?

CDS-II · 2014 · Q15 Relevance score: 0.73

Which of the following statements is/are correct ? 1. Coronary artery supplies blood to heart muscles. 2. Pulmonary vein supplies blood to lungs. 3. Hepatic art^y supplies blood to kidneys. 4. Renal vein supplies blood to kidneys. Select the correct answer using the code given below: