Biology EOC Goal 4 Review

All organisms contain DNA and RNA. What are the subunits of DNA and RNA?

• simple sugars

• amino acids

• carbohydrates

• nucleotides

If in any organism a DNA molecule is 24% cytosine, how much adenine will that DNA molecule contain?

• 24%

• 26%

• 48%

• 52%

Which type of molecules combine to make up the protein portion of hemoglobin?

• fatty acids

• amino acids

• monosaccharides

• polysaccharides

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.

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Which group of organic molecules contain starch and glucose?

• lipids

• proteins

• nucleic acids

• carbohydrates

What are the subunits of DNA and their function?

• monosaccharides that provide quick energy for the cell

• lipids that store energy and provide insulation

• nucleotides that store information

• proteins that provide the building blocks for the structural components of organisms

If nucleic acids code for proteins, which is a function of proteins?

• to store hereditary information

• to store energy for long-term use

• to provide a quick supply of energy

• to provide structure and transport materials in cells

Which organic molecules are used for long-term energy storage?

• carbohydrates

• nucleic acids

• lipids

• proteins

While trying to identify molecules and compounds within a cell, a scientist stumbles upon a nucleic acid that contains the nitrogenous base uracil, the sugar ribose, and is single-stranded. Which nucleic acid has this scientist most likely found?

• DNA

• RNA

• amino acid

• chromosome

What is the significance of nucleic acids for cells?

• They generate energy for the cell.

• They restrict what enters and leaves the cell.

• They support and maintain the shape of the cell.

• They provide all instructions for cellular activities.