Question

Which of the following statements is incorrect?

• A. Organism with large body size always has all the cells of larger size
• B. The number and size of cells have no relation to the body size
• C. The number of cells in a multicellular organism increase as development proceeds
• D. The size of cell is related to the function it performs.

Answer 1

Answer: (A)

(A) Smaller the size of the cell, larger the surface area per unit volume.
As a result, the larger the surface area of the cell in relation to its volume causes greater diffusion thus, size is related to its functions.
(B) Large animals have more cells than smaller ones, but cell is always microscopic in nature.

(C) As an organism develops from a single-celled zygote to a fully developed animal the number of cells increases.

The incorrect statement is OPTION B.