In no energy is used. which one needs a to get things
someone me out on this!

In DIFFUSION AND FACILITATED DIFFUSION no energy is used. The one that needs a helper to get thing across is FACILITATED DIFFUSION. Facilitated diffusion involves the diffusion of materials across the cell plasma membrane with the aid of membrane proteins such as carriers and channels. The process of diffusion does not need a carrier, the molecules to be transported just move on their own from the area of high concentration to the region of low concentration until the concentration in the space become uniform.

Ifound this on google “increases in temperature increase molecular activity, and can result in a higher rate of collisions between enzymes and substrates. if the temperature rises too high, however, the enzymes could become denatured, and the positive effects of the temperature increase could be nullified.” for more information go to the website below › i hope this you for what your looking for. can you plz mark me brainliest?

The answer is joseph is observing the colour of the reaction mixture to see whether proteins are present in the given solution.