What effect does an inhibitor has on the enzyme-substrate reaction?

inhibitor prevents substrate from binding the enzyme

inhibitor increases the chance that the substrate will bind to the substrate

The "lock and key hypothesis" attempts to explain the mechanism of?

Enzyme are specific to a substrate

Which of the following conclusions can be drawn from this graph?

The optimum pH of the enzyme is 6.6.

The optimum pH of the enzyme is 3.8

The enzyme’s activity increases as pH increases 5.0 to 9.0

The enzyme’s activity is greater around pH of 8.0 .

When a piece of liver is dropped into hydrogen peroxide, the peroxide bubbles vigorously as the hydrogen peroxide (H 2 O 2 ) decomposes into water (H 2 O) and oxygen (O 2 ). This rapid change in reaction rate suggests

the liver contains an enzyme that breaks down hydrogen peroxide

that liver contains lots of germs

enzyme increased the energy needed

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

increasing the temperature of the cell

increasing the concentration of reactants

Which 2 molecules pertain to energy?

Carbohydrates and Nucleic Acids

What will most likely happen if an appropriate enzyme is added to a chemical reaction?

The reaction rate will increase.

The equilibrium of the reaction will be maintained.

The reaction rate will decrease.

As food travels through the digestive system, it is exposed to a variety of pH levels. Pepsin works best at pH of 2 due to the presence of HCL. What happens to pepsin as it enters the small intestine that has a pH of 9.

It's activity increases to digest more proteins.

Which of the following will provide you with readily available energy with fewest calories possible?

Apple; 50 Calories - Fat (0 g), Protein (0 g), Carbohydrate (22 g)

Chips; 350 Calories - Fat (20 g), Protein (1 g), Carbohydrate (7 g)

Fish; 82 Calories - Fat (1g), Protein (14g), Carbohydrate (0 g)

Which of the following food option will provide you with the most amount of energy?

Chips - Lipid (20 g), Protein (1 g), Carbohydrate (7 g)

Avacado - Lipid (10 g), Protein (0 g), Carbohydrate (22 g)

Fish - Lipid (1g), Protein (14g), Carbohydrate (0 g)

Biomolecule & Enzyme Review

Authored by Tehreem Shad

Biology

9th - 10th Grade

NGSS covered

Used 108+ times

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23 questions

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MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which biomolecule is made up of amino acid?

protein

lipid

carbohydrate

nucleic acid

Which biomolecule is made up of monosaccharide?

lipid

carbohydrate

protein

nucleic acid

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which biomolecule provides the MOST amount of energy?

Carbohydrate

Protein

Lipid

Nucleic Acid

Which biomolecule will bear use during hibernation?

carbohydrate

nucleic acid

protein

lipid

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which biomolecule will you eat before running a mile?

lipid

carbohydrate

nucleic acid

protein

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which biomolecule increases the rate of reaction?

protein

carbohydrate

lipid

nucleic acid

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which biomolecule is needed for muscle development?

carbohydrate

nucleic acid

lipid

protein

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Biomolecule & Enzyme Review

Which biomolecule is made up of amino acid?

Which biomolecule is made up of monosaccharide?

Which biomolecule provides the MOST amount of energy?

Which biomolecule will bear use during hibernation?

Which biomolecule will you eat before running a mile?

Which biomolecule increases the rate of reaction?

Which biomolecule is needed for muscle development?

Which biomolecule provides insulation?

Lipids function in short term energy storage while carbohydrates(sugar) function in long term energy storage.

Lipids and carbohydrates are similar because they both provide cell with

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