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Concept 5.3: Lipids
What makes something a lipid?
Fats: Constructed from 2 molecules:
What is a triglycerol?
How are saturated fats different from unsaturated fats?
What is the purpose of fats?
Sketch and explain the regions of a phospholipid:
Why are they important to cells?
What makes something a steroid?
Why are human sex hormones considered to be lipids?
Concept 5.4: Proteins
What are proteins used for?
Explain the role of enzymes in living systems:
What is a polypeptide? Why is it called that?
What are amino acids? Sketch a generic one and label all the parts:
Explain a peptide bond and show how one is formed:
What makes one protein different from another?
A protein’s function is determined by
There are 4 basic levels of protein structure. Explain each, make a sketch to clarify each
step, and be sure to include the forces at work on each of the levels of structure:
(1)
(2)
(3)
(4)
What is denaturation, and what does it have to do with protein shape?
Why does a denatured protein no longer function normally?
A genetic mutation can change a protein’s primary structure. How can this destroy the
protein’s function?
Egg white is made of protein. Explain why the appearance of an egg changes when you
fry it:
Explain the protein-folding problem: