LS Bio 1.1

What is the basic building block of carbohydrates?

• Amino acids

• Monosaccharides

• Fatty acids

• Nucleotides

Which of the following is a primary function of proteins in the body?

• Energy storage

• Catalyzing biochemical reactions

• Genetic information storage

• Insulation

What role do lipids play in cell membranes?

• They provide genetic information.

• They act as enzymes.

• They form a barrier to protect the cell.

• They store energy.

Which macromolecule is primarily responsible for storing and transmitting genetic information?

• Carbohydrates

• Proteins

• Lipids

• Nucleic acids

Tags

NGSS.HS-LS3-1

How do carbohydrates and proteins interact in the body?

• Carbohydrates provide the structure for proteins.

• Proteins break down carbohydrates for energy.

• Carbohydrates and proteins do not interact.

• Proteins transport carbohydrates in the bloodstream.

Explain how the structure of a phospholipid contributes to its function in cell membranes.

• The hydrophobic tails repel water, forming a barrier.

• The hydrophilic heads attract water, allowing for fluidity.

• Both A and B

• Neither A nor B

Describe the relationship between the structure of DNA and its function in genetics.

• The double helix structure allows for easy replication.

• The single-stranded structure allows for easy replication.

• The circular structure allows for easy replication.

• The linear structure allows for easy replication.

Tags

NGSS.HS-LS1-1

Which of the following best describes the interaction between enzymes and substrates?

• Enzymes are permanently changed by substrates.

• Enzymes lower the activation energy of reactions with substrates.

• Enzymes increase the activation energy of reactions with substrates.

• Enzymes do not interact with substrates.

Analyze how a change in the sequence of nucleotides in DNA can affect protein function.

• It always results in a nonfunctional protein.

• It may change the amino acid sequence, altering protein function.

• It has no effect on protein function.

• It always enhances protein function.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Evaluate the impact of a high-fat diet on cell membrane structure and function.

• It strengthens the cell membrane.

• It makes the cell membrane more rigid.

• It has no impact on the cell membrane.

• It makes the cell membrane more fluid.