Which organic molecule is paired with its function?

carbohydrate : to provide quick–release energy

proteins : to provide insulation

lipids : to regulate metabolic processes

Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How do the functions of fats and enzymes differ?

Fats are storage molecules, while enzymes are catalytic molecules.

Fats are structural building materials, while enzymes are transportation molecules.

Fats provide support for cells, while enzymes lower the pH of gastric fluids.

Fats regulate body functions, while enzymes denature invasive bacteria.

Which of these statements describes how monomers combine and create macromolecules?

Amino acids combine to make proteins.

Glucose molecules combine to make nucleic acids.

Nucleic acids combine to make starch.

Proteins combine to make glucose.

What is the significance of nucleic acids for cells?

They provide all instructions for cellular activities.

They generate energy for the cell.

They restrict what enters and leaves the cell.

They support and maintain the shape of the cell.

Which best describes the role of hemoglobin in red blood cells?

It transports oxygen to human body tissues.

It hydrates human body tissues.

It supplies support to human body tissues.

It increases the rate of reactions in body tissues.

In organisms, macromolecules are made up of subunits. Which of these pairs correctly describes how a macromolecule is constructed?

Protein is made up of amino acids.

DNA is made up of nucleic acids.

Nucleic acids are made up of DNA.

Amino acids are made up of protein.

Which best explains enzyme specificity?

An enzyme is able to react with only one substrate.

An enzyme reacts best at a certain pH.

An enzyme reacts best at a certain temperature.

An enzyme is able to react with many different substrates.

Why are enzymes essential to all multicellular organisms?

They catalyze metabolic reactions.

They contain genetic information.

Why is the “lock and key” analogy often used to describe enzyme function?

Each enzyme will fit with only one specific kind of substrate.

Each enzyme is the same as its substrate.

Each enzyme can only be used once in a reaction and cannot be used again.

Each enzyme has its own active site that will not fit with other active sites.

Which best describes how an enzyme affects the rate of a chemical reaction?

It lowers the activation energy of the reaction.

It increases the temperature of the reaction.

It changes the products created in the reaction.

It causes the reaction to proceed in an unfavorable direction.

Which best explains how the structure of enzymes is related to their function?

Enzymes’ unique active site allows it to fit with only one substrate molecule.

Enzyme structures release the energy in their substrates.

Enzyme structures react with their substrates.

Enzymes interact with their substrates like welders building a steel skyscraper.

Which best explains the purpose of the active site of an enzyme?

The active site is for the attachment of the substrate.

The active site changes to fit any available substrate.

The active site determines how many reactions will be catalyzed.

The active site determines how fast the reaction is allowed to occur.

Biochemistry

Authored by Delora Oxendine

Biology

11th Grade

NGSS covered

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which organic molecule is primarily used by cells as a source of energy?

Amino Acid

Fatty Acid

Glucose

Protein

Tags

NGSS.HS-LS1-7

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is true about the structure of starch molecules and protein
molecules?

Starches and proteins are both polymers.

Starches and proteins are both amino acids.

Starches and proteins are both built from simple sugars.

Starches and proteins are both built from nucleic acids.

Tags

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which organic compounds necessary for life are formed by a sugar bonded
to a phosphate group and a nitrogenous base?

lipids

proteins

nucleic acids

carbohydrates

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is a function of lipids?

to supply cells with quick–release energy

to provide the body with insulation

to store genetic information

to regulate cell processes

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which best explains the function of the sequence of nucleotides?

It provides energy.

It carries genetic information.

It allows DNA to be successfully copied.

It determines the shape of the DNA molecule.

Tags

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Proteins are compounds formed in the cells of plants and animals. Which element is included in every protein molecule?

calcium

carbon

fluorine

sodium

Tags

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is a least likely primary function of proteins?

to act as an organic catalyst

to supply short-term energy

to build and repair damaged cells

to defend against foreign invaders

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Biochemistry

Which organic molecule is primarily used by cells as a source of energy?

Which is true about the structure of starch molecules and proteinmolecules?

Which organic compounds necessary for life are formed by a sugar bondedto a phosphate group and a nitrogenous base?

Which is a function of lipids?

Which best explains the function of the sequence of nucleotides?

Proteins are compounds formed in the cells of plants and animals. Which element is included in every protein molecule?

Which is a least likely primary function of proteins?

Which organic molecule is paired with its function?

Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How dothe functions of fats and enzymes differ?

Which organic molecule serves as a catalyst?

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

Which is true about the structure of starch molecules and protein
molecules?

Which organic compounds necessary for life are formed by a sugar bonded
to a phosphate group and a nitrogenous base?

Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How do
the functions of fats and enzymes differ?