When trying to exchange materials like nutirents into or out

When trying to exchange materials (like nutirents) into or out of cells most efficiently, what relationship between surface area and volume is most beneficial? Maximize surface area and minimize volume. Keep surface area and volume equal. Minimize surface area and maximize volume. None of these answers are correct. Which is NOT consistent with what you know about changes in surface to volume ratios? Numerous branches in the lungs and intestines increase the organs\' surface to volume ratio Smaller cells are more efficient at accessing nutrients and expelling waste products than larger cells Spherical cells have a lower surface area to volume ratio than elongated cells of the same volume Microvilli on an epithelial cell of the small intestine increase the cell\'s surface area to volume ratio As surface area increases, volume increases at the same rate

Solution

1.The relationship that is beneficial is to minimize surface area and maximize volume.

In single celled organisms this relationship works perfectly as the organism is made up of only one cell and the requirement is less and whatever is absorbed can be diffused efficiently, but in multicellular organisms this relationship is surface to volume ratio decreases and hence the rate of diffusion also decreases in order to over come this these organisms have evolved tissues and tissue systems to maximize absorption.

2.As surface area increases volume increases at the same rate. This statement is not true as the cell surface area increases at a slower rate than its volume.