Amino acids and Proteins Flashcards

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1
Q

What bond joins amino acids together?

A

peptide bond

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2
Q

What biological functions are proteins included in?

A

Structural uses
Membrane carriers and pores
All enzymes are proteins
Many hormones are proteins

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3
Q

what is the primary structure?

A

The sequence of amino acids that make up a protein.

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4
Q

What is the secondary structure?

A

Formation of a 3D structure when a chain of amino acids coil or folds.

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5
Q

What are the two secondary structure formed?

A

Beta pleated sheets and alpha helix

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6
Q

What is the quaternary structure?

A

When a protein polymerises and forms a bigger protein.

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7
Q

Where is collagen found?

A

Skin, mines, cartilage, tendons, teeth and the walls of blood vessel. Structural protein.

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8
Q

What is collagen made up of?

A

3 polypeptide chains, each in a shape of a helix. Form a rope. Contain cross-links which form fibrils.

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9
Q

What is haemoglobin made up of/

A

4 polypeptide bonds. Wrapped around a haem group.

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10
Q

What type of chains do haemoglobin contain?

A

two alpha chains and two beta chains.

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