Question

Both cell organelles namely nucleus and lysosomes are absent in ______________.

• A. Paramoecium
• B. R.B.Cs. of camel
• C. mature human R.B.Cs.
• D. vertebrate liver cells

Hint:

Absence of nucleus increases oxygen-carrying efficiency of human RBCs.

Answer 1

The Correct Option is C

Step 1: Understanding mature human RBCs.
Mature human red blood cells are specialized for oxygen transport.
Step 2: Structural modifications in RBCs.
During maturation, human RBCs lose their nucleus and most organelles, including lysosomes, to maximize space for haemoglobin.
Step 3: Elimination of incorrect options.
Paramoecium and liver cells possess nucleus and lysosomes.
Camel RBCs retain nucleus during certain stages.
Step 4: Conclusion.
Mature human RBCs lack both nucleus and lysosomes.