Radioisotopes are frequently used to label molecules in a cell. The fate of atoms and molecules in a 18) ce'll can then be followed. Assume Saccharomyces cerevisiae is grown in a nutrient medium containing the radioisotope 3% After a 48-hour incubatir, the 35S would most likely be found in the S. cerevisiae's:.
A) nucleic acids.
B) proteins
C) carbohydrates
D) water
E) lipids

B) Proteins  

Explanation:

[³⁵S] is usually supplied as [³⁵S]methionine and [³⁵S]cysteine. These amino acids are incorporated into proteins.

A is wrong. Nucleic acids do not have sulfur in their molecules.  

C and E wrong. The carbohydrates and lipids in S. cerevisiae have no sulfur.

D is wrong. Water has only H and O in its molecules.

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.