#2 the second molecule is something that kinda is important it is lipids they are fatty acids.
No not fat like fat from a person but similar the lipids are wax and they keep us warm for a while and to store energy and protection and cellular communication lipids are basically used to water. These fatty parts chain together and make lipids and form actually random different lipids and when those come together they make more and more.
How are lipids different then carbohydrates? They are made of c.h.o.n right? Well they have different structures see the fatty acids have bigger structure and carbohydrates have one tiny square while lipids have a large square. The lipids also are in things like unsaturated plants and animals. Lipids also contain oil. Resources:notes and a little bit of the molecules of life doucement.
#3 the third one is a thing that keeps the human body going for a good amount of time. the third one is proteins i know you think of asparagus or broccoli no proteins are to keep your body growing. The mane building blocks are amino acids like how you're acids are in your stomach when your food goes into your digestive system and go into the acids and burn the