What is the difference in hydrogen bonding between an $\alpha$ helix and a $\beta$-pleated sheet?

Examine the $\alpha-$helix conformation. Are amino acid side chains arranged all inside the helix, all outside the helix, or randomly?

Explain the $\alpha$-helix structure and the $\beta$-pleated sheet structure.

Which statements are true? Explain why or why not. Each strand in a $\beta$ sheet is a helix with two amino acids per turn.

Is the primary, secondary, or tertiary structure of a protein changed by denaturation?

What are some differences between each of the following pairs? $\alpha$ helix and $\beta$-pleated sheet

What does secondary protein structure refer to? What kinds of interactions maintain secondary protein structure?

a. What does the peptide bond have to do with the secondary structure of a protein?
b. What type of bonding maintains the tertiary structure of a protein?

Explain why DNA's structure is called "the double helix."

The $\alpha$ helix and the $\beta$-pleated sheet are part of which protein structure? a. primary, b. secondary, c. tertiary, d. quaternary.

The four protein chains of an LDH isozyme are an example of what level of protein structure?
(a) primary
(b) secondary
(c) tertiary
(d) quaternary

How is the secondary structure of a protein molecule established? How does this differ from the way the tertiary structure is established?

The order or sequences of amino acids in the protein chain is called the

A. primary structure.
B. secondary structure.
C. tertiary structure.
D. polypeptide.

is carbonate polar or nonpolar?