Week 3

What happens to the surface area surrounding the cell if the volume is too large?

The surface area surrounding the cell reduces.

Why is it important for cells to have a high surface area?

A high surface area allows for efficient movement of materials in and out of the cell.

What can occur if volume increases faster than surface area?

Problems in exchanging materials with the environment may arise.

What is a disadvantage of larger cells with a smaller surface area to volume ratio?

Diffusion becomes too slow to supply the center of the cell.

How does a smaller size advantage cellular diffusion efficiency?

Diffusion pathways are shorter, making the process more efficient.

Why might small, warm-blooded mammals need to eat constantly?

They lose heat quickly due to their large surface area to volume ratio.

What is one way that surface area to volume ratio can be maximized in cells?

By increasing folds to enhance gas exchange efficiency.

What is the definition of surface area to volume ratio?

The ratio between the surface area of a single cell and its volume.

Why do cells divide instead of growing very large?

To maintain efficient transport processes and prevent waste buildup or overheating.

Give an example of a structure that maximizes surface area for absorption in organisms.

Intestines fold to maximize the surface area for food molecule absorption.