6. this diagram shows two groups of plant cells, one with rhizome and one without the bacteria. label which is which, and explain the obvious size difference, using observations from part c of the lab in your answer.

I would say the bacteria containing rhizobium is the bigger one and the one without the bacteria is the smaller one. In the document, in section C, you observed the two. You can clearly see that rhizobium has bigger chunks than the one without it. The smaller one contains regular bacteria which makes it really small compared to the other

Here's some context I got from this website, it should help :)
"This is because when the bacteria enters the cells and begins to reproduce, the cells expand to make room for the growth of the Rhizobium colony and, therefore, become larger than their neighboring cells that do not have Rhizobium." (https://docslide.us/documents/biosem2516.html)

Hope this makes sense, good luck
-K12 student ;)

Answer:

it provides an alternative energy pathway for the reaction to proceed.

explanation:

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.