Question

The surface area/volume ratio is an important factor for one celled organisms. This is because _______________ is the primary method these cells use for material transport.
A) diffusion
B) active transport
C) transport protein
D) the endoplasmic reticulum

Answer 1

A) diffusion. This is because diffusion is the primary method theses cells use for material transport.

Answer 2

The correct answer is (a) diffusion.

The diffusion can be defined as the process by which materials are transported from a region of its higher concentration to a region of lower concentration. The surface area /volume ratio is very important for the process of diffusion. It is the primary method used by single celled organisms to transport material across the membrane. The single celled organisms use diffusion for the intake of food and removal of waste substances out of their body.