Bio Ch 3.1 - 3.2 Quiz

Organic compounds:

• Must be synthesized by animal cells.

• Always contain carbon.

• Always contain oxygen.

• Always contain nitrogen.

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NGSS.HS-LS1-6

Which statement about hydrocarbons is false?

• Hydrocarbons can form straight, branched, or ringed structures.

• Hydrocarbons are inorganic compounds.

• Hydrocarbons contain only carbon and hydrogen atoms.

• Hydrocarbons consist of atoms linked by single or double bonds.

Propanol and isopropanol are isomers. This means that they have

• the same molecular formula but different chemical properties.

• the same molecular formula and the same chemical properties.

• different molecular formulas but the same chemical properties.

• the same molecular formula but represent different states of the compound.

A hydroxyl group is

• composed of two oxygen atoms.

• characteristic of alcohols.

• also called a carbonyl group.

• characteristic of proteins.

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NGSS.HS-LS1-6

Which of the following is a carboxyl group?

• -NH2

• -C-O

• -CO

• -COOH

Which of the following is an amino group?

• -CO

• -COOH

• -OH

• -NH2

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NGSS.HS-LS1-6

Which statement about the functional groups of organic compounds is false?

• Functional groups participate in chemical reactions.

• Functional groups may help make organic compounds hydrophilic.

• All functional groups include a carbon atom.

• Many biological molecules have two or more functional groups.

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NGSS.HS-LS1-6

Which molecule contains both a carboxyl and an amino group?

• fat

• sugar

• amino acid

• glucose

Which functional group is capable of regulating gene expression?

• -CO

• -COOH

• -OH

• -NH2

• -CH3

Carbon has the capacity to form single and double bonds.

• True

• False

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NGSS.HS-LS1-6