A digestive enzyme that is released into the small intestines by the pancreas is used to break down proteins. Data from a chemical reaction with the digestive enzyme are shown in the graph below. According to the graph, which conclusion can be made about this digestive enzyme?

It functions most efficiently from pH 7.0 to pH 9.0.

It will work best if pH levels increase above pH 10.0.

It breaks down the most proteins between pH 1.0 and pH 5.0.

It is effective at breaking down proteins from pH 1.0 to pH 10.0.

The effect of temperature on the relative rate of enzyme activity is shown. Which statement is a valid conclusion based on the information in the graph?

Temperature can influence the action of an enzyme.

The maximum rate of human respiration occurs at about 57°C.

The maximum rate of human digestion occurs at about 45°C.

Growth can be controlled by the action of an enzyme.

Which of the following statements can be attributed to water's versatility as a SOLVENT?

Nutrients from food can dissolve into blood.

Frozen water floats on top of liquid water.

Blood is able to flow through small vessels.

An air bladder allows fish to regulate buoyancy in the water.

As water freezes, it expands and its density decreases.

As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

What are the four types of biological macromolecules?

carbohydrates, lipids, nucleic acids, proteins

carbohydrates, nucleotides, lipids, amino acids

nucleic acids, monosaccharides, proteins, lipids

carbohydrates, amino acids, water, proteins

If this property of a protein is changed, the protein will denature and will no longer function properly

Number of carbon and hydrogen atoms

What is the function of enzymes?

all of these answers are correct

they speed up chemical reactions

they help break polymers into monomers

the help build monomers into polymers

What is the difference between saturated and unsaturated fat?

in unsaturated fats, the fatty acids have double bonds between the carbon atoms

in saturated fats, the fatty acids have double bonds between the carbon atoms

Which statement is true about biomolecules, also known as macromolecules?

they are very large and made of hundreds to thousands of atoms

they are very small and made of very few atoms

Biochemistry

Authored by Candice Tupajic

Biology

9th - 12th Grade

NGSS covered

Used 4+ times

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60 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which major macromolecule is being represented in this image?

carbohydrate

lipid

protein

nucleic acid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following contains the genetic code for protein synthesis?

carbohydrate

lipid

protein

nucleic acid

What type of macromolecule is being represented in this image?

carbohydrate

lipid

protein

nucleic acid

What are the building blocks of proteins?

amino acid

fatty acid

nucleotide

lipid

What are the single sugars that are the building blocks of carbohydrates?

monosaccharides

disaccharides

polysaccharides

amino acid

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are lipids insoluble in water?

lipids are polar

lipids are non-polar

lipids have a negative charge

lipids are building blocks of protiens

MULTIPLE CHOICE QUESTION

30 sec • 12 pts

Which is an example of a lipid

fat

starch

glucose

hemoglobin

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Biochemistry

Which major macromolecule is being represented in this image?

Which of the following contains the genetic code for protein synthesis?

What type of macromolecule is being represented in this image?

What are the building blocks of proteins?

What are the single sugars that are the building blocks of carbohydrates?

Why are lipids insoluble in water?

Which is an example of a lipid

Glucose (sugar) is an example of a

Which is a Carbohydrate's monomer?

I am responsible for long term energy storage in mammals.

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