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Biology 1610 > Chapter 5 - Proteins > Flashcards

Chapter 5 - Proteins Flashcards

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1
Q

Define: Proteins

A

Makes up 50% of dry mass of most cells

Polymers of Amino acids - Polypeptides

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2
Q

What is the function of an enzymatic protein? What is an example?

A

Function: selective acceleration of chemical reactions

Ex. digestive enzymes catalyze the hydrolysis of bonds in food

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3
Q

What is the function of storage proteins? What is an example?

A

Function: Storage of amino acids

Ex. Casein an ovalbumin

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4
Q

What is the function of hormonal proteins? What is an example?

A

Function: coordination of an organisms activities

Ex. Insulin

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5
Q

What is the function of contractile and motor proteins? What is an example?

A

Function: movement

Ex. Actin and myosin
Myosin fibers are strongly attracted to actin.
Muscles

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6
Q

What is the function of defensive proteins? What is an example?

A

Function: protect against disease

Ex. Antibodies

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7
Q

What is the function of transport proteins? What is an example?

A

Function: transport of substances

Ex. Hemoglobin and proteins found in cell membrane

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8
Q

What is the function of receptor proteins? An example?

A

Function: response of cell to chemical stimuli

Ex. Receptors in a nerve cell

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9
Q

What is the function of structural proteins? What is an example?

A

Function: support

Ex. Keratin and collagen

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10
Q

Amino Acid Monomers consist of?

A

Amino Acid Monomers will always consist of Amino group, alpha carbon, and Carbonyl group.

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11
Q

Non-polar side chains are which of the following?

A) hydrophobic
B) hydrophilic

A

Hydrophobic

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12
Q

Polar side chains are which of the following?

A) hydrophobic
B) hydrophilic

A

Hydrophilic

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13
Q

Electrically charged side chains are which of the following?

A) hydrophobic
B) hydrophilic

A

B) hydrophilic

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14
Q

What is a primary structure of Amino acids?

A

One long line of Amino acids.

Always goes from primary to secondary that are put together by hydrogen bonds

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15
Q

What is a secondary structure?

A

Makes a helix

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16
Q

What is a tertiary structure?

A

It has a bunch of Amino acids inside (might have a few alpha-helix, pleated sheets)

17
Q

What is a quaternary structure?

A

Putting a bunch of proteins together to make certain structure (ex. Hemoglobin)

Biology 1610 (20 decks)

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