Louis pasteur demonstrated the people could be vaccinated against smallpox through exposure of cowpox

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.