Calories give your body energy
Answer:
E. Large molecules
Explanation:
Large molecules cannot pass through the membrane without help they are too big. This is because the membrane is very selective with what it let enters.
left is metal (except for hydrogen), there is a line that separates metal and non-metal and in between those, that are hugging the line are metalloids
Key is to Lock as Substrate is to Enzyme
A substrate is a necessary component for an enzyme to become active. It is a specific shape that fits perfectly into an Active Site on the enzyme.
