Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

biology-topic 01: biological molecules > 1.24 - Proteins > Flashcards

1.24 - Proteins Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards
1
Q

What are proteins made up from?

A

Amino acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the basic structure of amino acids?

A
  • Amino group(-NH2)
  • Carboxyl group(-COOH)
  • R group(variable)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What effects can the R group have?

A

The way the amino acid bonds with others and if the acid is polar or not

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What groups of an amino acid react to form a bond?

A

The amino group(-NH2) and carboxyl group(-COOH)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What type of bond is formed between amino acids?

A

Peptide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a molecule of two amino acids called?

A

Dipeptide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is a polymer of amino acids called?

A

A polypeptide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What bonds can form within a protein?

A

Hydrogen bonds, disulfide bonds and ionic bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where do disulfide bonds form?

A

Between two sulfur containing R groups

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

How many protein structures are there?

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the primary structure?

A

The sequence of amino acids that make up the polypeptide chain, held together by peptide bonds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the secondary structure?

A

The arrangement of the polypeptide chain into a regular repeating pattern

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What to forms can the secondary structure take?

A

Alpha helix or Beta sheet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the tertiary structure?

A

Further folding of the secondary structure into more complicated shapes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the quaternary structure?

A

The fitting together of several chains of the tertiary structure into a complex 3D shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the two types of protein?

A

Fibrous(strands) and globular(spherical)

17
Q

What is collagen?

A

A fibrous protein that gives strength to tendons, muscles, bones and skin

18
Q

What shape does collagen make?

A

Triple helix

19
Q

What is the test for proteins?

A

Biuret test

20
Q

Explain the Biuret test

A
  • Test solution must be alkaline
  • Add sodium hydroxide solution
  • Add dilute copper(II) solution
  • Positive test shows a change of colour from blue to purple

biology-topic 01: biological molecules (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions