Brainscape's Knowledge GenomeTM

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


See full index

A/ H Chemistry: Unit 2 > Section F > Flashcards

Section F Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

What are two functions of amino acids?

A
  • Major structural material e.g. muscle, skin

* Maintenance- enzymes, hormones, haemoglobin

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

What compound are proteins made of?

A

Amino acids

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

What two functional groups are in amino acids?

A

Carboxylic acid and amine group

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

What link is formed when amino acids join together?

A

Peptide link or amide link

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

What does a peptide link look like?

A

C=O
|
N-H

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

What reaction occurs when amino acids are joined together?

A

Condensation reaction

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

What happens to the structural formula when the mink acids react together?

A

The NH2 on one amino acid joins to the COOH on the other amino acid and a water is lost when the peptide link is formed

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

How are different proteins made?

A

Amino acids are joined in a different order or different amino acids are used

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

How is the body supplied with the amino acids it needs?

A

It makes some itself but those it can’t make it gets from protein foods

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

What is an essential amino acid?

A

The amino acids the body needs but cannot make

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

What happens to proteins during digestion?

A

Proteins are hydrolysed to form amino acids that are used by the body

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

What reaction occurs during digestion?

A

Hydrolysis of proteins

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

What is an enzyme?

A

Proteins that act as biological catalysts

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

What role do enzymes play in digestion?

A

They catalyse the hydrolysis of proteins

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

What three shapes can a protein form?

A
  • wind round to form complex shapes
  • fold to form sheets
  • twist to form spirals
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What holds a long chain protein together in particular shapes?

A

Hydrogen bonds that form between the hydrogen of one amide link and the oxygen of another amide link
Or intermolecular bonds can also form between the side chains of the amino acids that make up the protein

17
Q

What causes a protein to be denatured?

A

Temperature and pH

18
Q

What structural change occurs when a protein is denatured?

A

It changes shape

19
Q

How does denaturing change food?

A

Cooking proteins breaks the intermolecular bonds/hydrogen bonds that hold the protein molecule in a particular shape which denatured the proteins and this changes both the texture and appearance of the protein

A/ H Chemistry: Unit 2 (9 decks)

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