MHTCET 18 Apr 2026 Shift 1 Paper

Concept:The size of biological structures increases progressively from antibodies to cancer cells.Explanation:Antibodies are protein molecules with a size of about $10-15\ \text{nm}$.Viruses are larger than antibodies, typically ranging from $20-300\ \text{nm}$.Bacteria are much larger, usually measuring $0.5-5\ \mu\text{m}$ in size.Cancer cells are animal cells, generally around $10-30\ \mu\text{m}$ or even larger.So, the correct increasing size order is:$$\text{Antibody} < \text{Virus} < \text{Bacteria} < \text{Cancer cell}$$Among the given options, the cancer cell has the largest size.Answer:Option D: Cancer cell.