🧡 Unit 3: Major Macromolecules - Proteins

Question 1

Protein

Answer 1

made of amino acids, account for 20% of body weight

Question 2

Amino Acids

Answer 2

• Made of C,H,O,N sometimes S
• Only 20 needed for human function
• Source of energy

Question 3

Amino Acid Structure

Answer 3

central carbon attached to amino group (NH2), carboxyl group (COOH), and R-group

Question 4

Functions of a Protein

Answer 4

• Support
• Movement
• Transport
• Defense
• Energy
• Metabolic Regulation

Question 5

What’s the primary function of a protein?

Answer 5

to build structures

Question 6

Protein Hormones

Answer 6

influence metabolic activity or organ function

Question 7

Protein Receptors

Answer 7

allow a hormone to bind and exert its effect on a cell (in cell membrane)

Question 8

Protein Channels

Answer 8

allow for movement of substances in and out of cell (in cell membrane)

Question 9

Keratin

Answer 9

protein that makes skin cells water resistant

Question 10

Clotting Proteins

Answer 10

reduce blood loss

Question 11

Enzyme

Answer 11

speeds up chemical reactions

Question 12

Peptide Bond

Answer 12

links individual amino acids together (covalent bond)
- Carboxyl Group —-> Amino Group

Question 13

What process form peptide bonds?

Answer 13

Dehydration Synthesis