Facilitated diffusion of substances crossing the cell (plasma) membrane takes place with the help of proteins such as channel proteins and carrier proteins.
I think the answer is 47 because 42-8 is 34 then 34+13 is 47
Hydroelectric energy would not be a good alternative energy source for a small island country like Great Britain. The UK has a large population of about 60-65 million people and a large industrial, so electricity consumption would be a problem. A lot of hydroelectric dams would be needed to serve the large population, and UK does not have a lot of major rivers that are suitable for dams
Answer:
C. Succinate is the substrate, and fumarate is the product.
Explanation:
Succinate is the substrate of the enzyme Succinate dehydrogenase, and as a product is obtained fumarate. In this scenario, malonic acid plays the role of a competitive inhibitor because its structure resembles the succinate's, so they compete for the active site of the enzyme. So, A option is wrong because fumarate is not the product. B option is wrong too because malonic acid is an inhibitor, not the substrate. Also, D is incorrect because malonic acid is a COMPETITIVE inhibitor, not a noncompetitive one. Finally, E can´t be true because malonic acid is not product and fumarate is the product, not an inhibitor.
