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L3 Protein Biosynthesis

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

What Proteins act as catalysts

a)

Enzymes

b)

Hormones

c)

Antibodies

d)

Channel Proteins

2.

All amino acids have a ...

a)

ether group & carboxyl group

b)

amino group & hydroxide group

c)

amino group & carboxyl group

d)

ether group & hydroxide group

3.

Fibrous Proteins are classified as elongated and ..?.. proteins

a)

Acidic

b)

Soluble

c)

Basic

d)

Insoluble

4.

How many amino acids are there?

a)

10

b)

15

c)

20

d)

25

5.

If a amino acid is Non-polar it is

a)

Hydrophobic

b)

Hydrophilic

6.

The basic bond between amino acids (Peptide bonds) are

a)

Ionic

b)

Covalent

c)

Di-sulphide

d)

Hydrogen bonds

7.

A basic pH, means ..?.. H, and a nett ..?.. charge for an amino acid.

a)

less, postive

b)

more, positive

c)

less, negative

d)

more, negative

8.

If pH < pI then there will be a

a)

Positive charge

b)

Negative charge

9.

If pH> pI then there will be a

a)

Positive charge

b)

Negative charge

10.

pI or isoelectric point is the....

a)

net charge of the protein at which it is equal to its surroundings

b)

pH of a protein when it is equal to the surrounding pH

c)

net charge on the protein at which the pH of a protein is neutral

d)

pH at which the net charge on the protein is zero