Food chem: proteins and vitamins

Question 1

Essential Amino Acid

Answer 1

amino acid that cannot be synthesised by the human body

Question 2

Primary Structure

Answer 2

linear sequence of amino acids in a polypeptide

Question 3

Secondary Structure

Answer 3

arrangement of a primary protein structure in a way that results in a α-helix or β-pleated sheet

Question 4

Tertiary Structure

Answer 4

overall three-dimensional structure of a protein

Question 5

Quaternary Structure

Answer 5

 combination of multiple polypeptide chains known as subunits

Question 6

Lock and Key Model

Answer 6

 theory of enzyme activity where the substrate perfectly fits the active site of the enzyme

Question 7

Induced Fit Model

Answer 7

 theory of enzyme activity where the active site slightly changes shape to bind to the substrate

Question 8

Coenzyme

Answer 8

 organic molecule that attaches to the active site of an enzyme and changes the surface shape to enable the substrate to bind

Question 9

Vitamin

Answer 9

organic molecules needed in small quantities for normal bodily functions