U1/ U3 Test

Why is the structure/order of proteins important?

• A change in structure causes a change in the function

• The order of proteins is not important

• The order determines the effectiveness of the protein

• The structure of proteins determines the structure of carbohydrates

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What is this enzymes optimal temperature?

• 10*C

• 40*C

• 50*C

• 70*C

Which claim is best supported by this graph?

• This enzyme has an optimal pH of 13

• The enzyme prefers more of an acidic environment

• The optimum pH for this enzyme is 4 and denatures at a pH of 9

• The optimum pH for this enzyme is 9 but it denatures at a pH of 4

Tags

NGSS.HS-PS1-5

A noncompetitive inhibitor binds to an enzyme and changes its shape. What effect does this have on the enzyme?

• The enzyme can not be reused after the reaction is complete

• The function of the enzyme is changed

• The substrate changes shape to fit the enzyme

• There is no change in the enzymes function

Which molecule reacts with itself to form this polypeptide chain?

• amino acids

• glucose

• starch

• nucleotide

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which is a function of a protein?

• Fat storage

• To provide the body with fast energy

• Makes up the cell membrane

• To catalyze chemical reactions

The structure labeled E represents-

• Products

• Enzyme

• Substrate

• Reactants

Tags

NGSS.HS-LS2-3

Which of the following lines shows the presence of an enzyme?

• Black

• Red

Tags

NGSS.HS-LS1-7

Which pair of answers correctly matches the monomer and the polymer?

• Glucose- Protein

• Amino Acid- Nucleic Acid

• Nucleotide - Nucleic Acid

• Fatty Acid- DNA

What is the function of an enzyme?

• Dehydration Synthesis

• Producing disaccharides from monosaccharides

• Slowing down the rate of chemical reactions

• Catalyze chemical reactions by lowering the activation energy