True or False statements

Question

The surface area of a cell is determined by the surface area of the plasma membrane, the selective boundary through which materials enter and exit the cell. Blank
target 1 of 5
As a cell increases in size, the surface area increases proportionately more than the volume. Blank
target 2 of 5
A cell's growth is limited by its surface area to volume ratio. Blank
target 3 of 5
A small surface area to volume ratio is desirable for the cell to transport enough nutrients and waste across the plasma membrane to meet its metabolic needs. Blanktarget 4 of 5
Multicellularity in large organisms results in more, smaller cells and thus a higher surface area to volume ratio. Blank

Answer 1

Here are the answers to your True or False statements:

1. The surface area of a cell is determined by the surface area of the plasma membrane, the selective boundary through which materials enter and exit the cell.
   True

2. As a cell increases in size, the surface area increases proportionately more than the volume.
   False
   (As a cell increases in size, the volume increases at a faster rate than the surface area, leading to a decrease in the surface area to volume ratio.)

3. A cell's growth is limited by its surface area to volume ratio.
   True
   (A low surface area to volume ratio means that a cell may not be able to transport enough materials to meet its metabolic needs as it grows larger.)

4. A small surface area to volume ratio is desirable for the cell to transport enough nutrients and waste across the plasma membrane to meet its metabolic needs.
   False
   (A large surface area to volume ratio is desirable because it allows for more efficient transport of nutrients and waste.)

5. Multicellularity in large organisms results in more, smaller cells and thus a higher surface area to volume ratio.
   True
   (Multicellular organisms consist of many smaller cells, which collectively provide a higher surface area to volume ratio compared to a single large cell.)