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

• 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

• Fats are storage molecules, while enzymes are catalytic molecules

Which statements explain the primary difference between the structure of a nucleic acid and the structure of a protein?

• A nucleic acid has alternating base pairs. A protein has alternating peptides

• Nitrogen bases form the backbone of a nucleic acid.. Peptides form the backbone of a protein

• Nucleotides link together to form a nucleic acid. Amino acid link together to form a protein

• A nucleic acid is held together by the sugar-phosphate complex. A protein is held together by the carbon-carbon bonds

Which image correctly represents a strand of human DNA?

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• 
• 

Answer explanation

DNA must be double stranded. Complementary Nitrogen bases should align (A-T, C-G)

Why is approximately 50% of any individual's DNA inherited from that individual's father?

• It was passed to the individual by a gamete from the father.

• It was passed to the individual by a somatic cell from the father.

• Half of the individual’s cells descend from the father’s gamete.

• Half of the individual’s nuclei descend from the nucleus of the father’s gamete.

Reteplase, a blood thinner, is a recombinant protein made by E. Coli. What does the word recombinant indicate about this protein?

• It is made by blending two different proteins.

• It is made by blending the nucleotides of two genes.

• It is made by splicing human genes into E. coli DNA.

• It is made by giving E. Coli nutrients it would not get naturally.

Nucleotides are subunits of _________________ which code for _________________ in a sequence that makes up __________________.

• DNA, AMINO ACIDS, PROTEIN

• DNA, PROTEIN, AMINO ACIDS

• AMINO ACIDS, DNA, PROTEINS

• PROTEINS, DNA, AMINO ACIDS

Living cells synthesize long chains of amino acids called proteins. Which substance provides the information needed to correctly sequence the amino acids during protein synthesis?

• ATP

• mRNA

• tRNA

• DNA

The following statements describe events in the life cycle of a rabbit. Which of the events describes a trait of the rabbit that is most likely passed on to future generations?

• A young rabbit develops a bacterial infection and lives long enough to produce three litters.

• A young rabbit constantly outruns predators and lives long enough to produce three litters.

• A young rabbit survives freezing winter temperatures and digs a burrow in the spring.

• A young rabbit migrates to find a better food supply and establishes a new territory.

Answer explanation

The only answer option that emphasizes the PASSING ON a beneficial trait or characteristic to offspring is "outrunning predators and lives long enough to produce three litters"

Which condition must be fulfilled in order for a virus to reproduce?

• A virus must have completed internal replication of its DNA

• A virus must be absorbed by a living cell

• A virus must store a surplus of tRNA and amino acids

• A virus must have taken over the protein production resources of a cell

Answer explanation

In order for something to be "living" or survive, it must be able to produce proteins

Biology is the study of life. Over the course of a biology class you will cover: Cells as a System, Biological Evolution, Heredity, Ecology, Energy Transfer. What unit are we currently covering in Biology?

• Energy Transfer

• Ecology

• Biological Evolution

• Cells as a System