Proteins: Structure of Amino Acids

Question 1

Are proteins organic molecules

Answer 1

yes

Question 2

What are the roles of the proteins in the body?

Answer 2

• Structural roles
• Metabolic roles
  -Transport roles

Question 3

What are examples of structures proteins build in the body?

Answer 3

Muscles
Tendons

Question 4

What is an example of a metabolic role of proteins?

Answer 4

Produce enzymes

Question 5

What do enzymes do ?

Answer 5

Have an active site complementary to substrate and bind to catalyse the reactions in the body.

Question 6

What are examples of transport roles of proteins in the body ?

Answer 6

• Haemoglobin for oxygen transport in red blood cell

Question 7

What elements are present in all three of Proteins, Carbohydrates, and Lipids?

Answer 7

Carbon, Hydrogen, Oxygen

Question 8

What other elements are present in proteins?

Answer 8

Nitrogen and sometimes sulphur and phosphorus

Question 9

What are amino acids?

Answer 9

The monomers and the building blocks used to build protein molecules.

Question 10

Match the following
MONOMER/POLYMER
PROTEIN/ AMINO ACIDS

Answer 10

Monomer –> Amino acids
Polymer –> Proteins

Question 11

All amino acids (regardless of which one) have all the same basic structure [ TRUE/FALSE ]

Answer 11

TRUE

Question 12

What is the basic structure of amino acids?

Answer 12

A central Carbon atom bonded to a carboxyl group, an amino group, a hydrogen atom and a R group.

Question 13

How many naturally occurring amino acids exist? What is the difference between them?

Answer 13

20
They each have a different R group

Question 14

How can R groups vary?

Answer 14

• size
• polarity (polar/non polar molecules at the end of the group)
• charge

Question 15

what is the result of the difference between amino acid R groups?

Answer 15

Result in a wide variety of amino acids to make many different proteins