Which of the following is a function of the cell membrane?

Controlling the movement of substances in and out of the cell

Which of the following best explains why the structure of a protein is important for its function?

The structure allows the protein to interact with specific molecules.

The structure determines the protein's color.

The structure makes the protein water-soluble.

The structure increases the protein's size.

How does the structure of the mitochondria support its function in the cell?

Its folded inner membrane increases surface area for ATP production.

Its smooth outer membrane allows for easy transport of proteins.

Its rigid structure protects the cell from toxins.

Its large size stores more DNA.

Why are enzymes considered specific in their action?

Their active site fits only specific substrates.

They can catalyze any reaction.

They are only found in animal cells.

How does the structure of DNA allow it to store genetic information?

Its double helix structure provides stability and allows for base pairing.

Its circular shape allows for rapid movement.

Its single-stranded form is easily replicated.

Its lipid composition protects it from enzymes.

Which statement best compares prokaryotic and eukaryotic cells?

Only eukaryotic cells have a nucleus.

Both have membrane-bound organelles.

Only prokaryotic cells have mitochondria.

Both have a cell wall made of cellulose.

What would most likely happen to an enzyme if the pH of its environment changes drastically?

Its structure could change, reducing its activity.

It would become more efficient.

Its substrate would change shape.

How does the structure of phospholipids in the cell membrane contribute to its function?

The hydrophilic heads face outward, allowing interaction with water.

The hydrophobic tails prevent water from entering the cell.

The rigid structure prevents any movement.

The protein channels block all substances.

Why is the sequence of amino acids important in a protein?

It determines the protein's function and shape.

It makes the protein more acidic.

It increases the protein's solubility.

It allows the protein to store energy.

A student adds an enzyme to a solution containing its substrate. Which observation would best indicate that the enzyme is acting as a catalyst?

The reaction occurs faster than without the enzyme.

The enzyme is used up in the reaction.

The temperature of the solution decreases.

Which of the following best explains how RNA is involved in protein synthesis?

RNA carries the genetic code from DNA to ribosomes.

RNA stores genetic information.

RNA provides energy for the cell.

A scientist wants to investigate how temperature affects enzyme activity. Which experimental design would best test this?

Measure enzyme activity at different temperatures while keeping all other variables constant.

Use different enzymes at the same temperature.

Change the pH and measure enzyme activity.

Use different substrates with the same enzyme.

A mutation changes the sequence of bases in a DNA molecule. What is the most likely result?

The protein produced may have a different amino acid sequence.

The DNA will become an RNA molecule.

The cell will become a prokaryote.

A student observes that a certain enzyme works best at pH 7. What would most likely happen if the pH is changed to 3?

The enzyme activity would decrease.

The enzyme activity would increase.

The enzyme would become a carbohydrate.

A researcher compares the rate of a biochemical reaction with and without an enzyme. The reaction with the enzyme is much faster. What does this demonstrate about enzymes?

Enzymes lower the activation energy required for reactions.

Enzymes are used up in reactions.

Enzymes increase the temperature of reactions.

Enzymes change the products of reactions.

Given a diagram of a eukaryotic cell, how would you determine which organelle is responsible for energy production?

Identify the organelle with a double membrane and folded inner membrane.

Look for the largest organelle in the cell.

Find the organelle near the cell membrane.

Identify the organelle with ribosomes attached.

A student is given two unknown cells. One has a nucleus and membrane-bound organelles, and the other does not. How should the student classify these cells?

The cell with a nucleus is eukaryotic; the other is prokaryotic.

The cell without a nucleus is eukaryotic; the other is prokaryotic.

A scientist wants to model how the structure of an enzyme determines its function. Which approach would best illustrate this relationship?

Build a 3D model showing the enzyme's active site and how it binds to a specific substrate.

List the types of enzymes found in the body.

Measure the mass of the enzyme.

A mutation in the DNA sequence leads to a change in the mRNA produced. How could this affect the protein synthesized?

The protein may have a different sequence of amino acids, altering its function.

The protein will always be shorter.

The protein will not be affected.

The protein will become a carbohydrate.

Macromolecules and Cells

Authored by Dakota Federico

Science

11th Grade

NGSS covered

Used 4+ times

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30 questions

Show all answers

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Which of the following is a major macromolecule essential for life?

Glucose

Protein

Oxygen

Carbon dioxide

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

What is the primary function of ribosomes in a cell?

Energy production

Protein synthesis

DNA replication

Lipid storage

Tags

NGSS.HS-LS1-1

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Which organelle is responsible for photosynthesis in plant cells?

Mitochondria

Chloroplast

Nucleus

Golgi apparatus

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Which type of cell lacks a nucleus?

Eukaryotic cell

Prokaryotic cell

Plant cell

Animal cell

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

What is the monomer unit of nucleic acids?

Amino acid

Nucleotide

Fatty acid

Monosaccharide

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Which macromolecule is primarily responsible for storing genetic information?

Carbohydrate

Lipid

Nucleic acid

Protein

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

MULTIPLE CHOICE QUESTION

30 mins • 1 pt

Which of the following best describes the function of enzymes?

They provide structural support to cells.

They act as catalysts to speed up biochemical reactions.

They store genetic information.

They transport oxygen in the blood.

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Macromolecules and Cells

Which of the following is a major macromolecule essential for life?

What is the primary function of ribosomes in a cell?

Which organelle is responsible for photosynthesis in plant cells?

Which type of cell lacks a nucleus?

What is the monomer unit of nucleic acids?

Which macromolecule is primarily responsible for storing genetic information?

Which of the following best describes the function of enzymes?

Which organelle is responsible for packaging and modifying proteins?

Which of the following is a function of the cell membrane?

Which macromolecule is made up of amino acids?

Access all questions and much more by creating a free account

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