Proteins

What is an example of a protein?

• Strawberries
• Bread
• Pasta
• Steak

How many different amino acids are there?

• 15
• 20
• 25
• 30

Enyzmes are a very important type of protein used to

• Build bones in skeleton
• Send hormonal signals throughout body
• Speed up chemical reactions
• Photosynthesize glucose in plants

Which of the following is NOT a function of proteins

• Assist in blood clotting
• Fight infections and diseases
• Assist in the processing of glucose
• None of the above

This is one job proteins do NOT have in the body

• storing genetic information
• structure
• speed up chemical reactions
• transport things through cell membrane

What is the monomer of proteins?

• amino acids
• polypeptides
• nucleotides
• monosaccharides

Which macromolecule is this?

• carbohydrate
• lipid
• protein
• nucleic acid

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

Which analogy best describes the role enzymes play in cells?

• Like walls in buildings, enzymes provide structural support for the cell
• Like the person who helps you bag your groceries, enzymes speed up processes in cells
• Like books in libraries, enzymes store information that can be used by the cell when needed
• Like the fence around a yard, enzymes act as a barrier preventing entry to the cell.

What is a protein: 

• A polymer composed of many sugars.
• A polymer composed of many amino acids. 
• A polymer composed of fatty acids. 
• A polymer composed of nucleotides.