Question

Which of the following cells is circular and biconcave in shape?

• A. RBC
• B. Bacillus
• C. Coccus
• D. Spirochetes

Answer 1

The correct option is A

RBC

The correct option is A.

Explanation of correct option:

1. RBC stands for red blood cells and is also called erythrocytes.
2. They are biconcave or disc-shaped.
3. They are responsible for the red color of blood.
4. They carry oxygen from the lungs to the cells and tissues of the body and carry carbon dioxide from the cells and tissues of the body to the lungs for exhalation.

Explanation of incorrect options:

Option B:

Bacillus is a rod-shaped bacteria.

Option C:

Coccus is spherical in shape.

Option D:

Spirochetes are slender and spiral-shaped.

Final answer: RBC is circular and biconcave in shape.