Chapter 2: Chemical Principles

Question 1

What are proteins?

Answer 1

Amino acids that are linked together

Question 2

What is DNA composed of?

Answer 2

1. A base (purine = Adenine or guanine) (pyrimidine = thymine or cytosine)
2. Deoxy-ribos-sugar
3. Phosphate

Question 3

What is RNA composed of?

Answer 3

1. Full ribose sugar
2. Single helix
3. Uracil instead of thymine

Question 4

What are the three types of RNA?

Answer 4

1. mRNA (coded)
2. tRNA (train)
3. rRNA (every ribosome has its own RNA)