Proteins

Question 0

Define colloidal systems

Answer 0

Too large dissolve but too small settle out of solution therefore remain suspended in solution

Question 1

What are proteins?

Answer 1

Polymers that form colloidal systems

Question 2

What joins amino acids together?

Answer 2

Peptide bonds

Question 3

What happens when two amino acids are joined by a peptide bond

Answer 3

Dipeptide is formed

Question 4

What affects the protein structure?

Answer 4

Extremely high temperatures

The wrong pH

Question 5

What is denaturing?

Answer 5

When the protein structure changes its shape making it impossible to perform its proper function

Question 6

List five biological importance of proteins

Answer 6

1. Some act as enzymes, antibodies or protective proteins
2. Serve as a source of energy only after primary energy has been used
3. Some proteins are hormones that control pH of body’s processes
4. Act as respiratory pigments (hemoglobin in blood and myoglobin in muscles)
5. Proteins main building materials and provide structural framework for cells