A substance that cannot be broken down into simpler substances is a(n)

• atom

• cell

• element

• compound

One molecule of water (H₂O) has _ atoms of hydrogen.

Tags

NGSS.MS-PS1-1

Most carbon-based compounds are classified as

• organic

• inorganic

• permeable

• nucleic

Which of the following compounds are organic? Select all that apply.

• carbohydrates

• lipids

• water

• proteins

• nucleic acids

DNA is an example of a

• carbohydate

• lipid

• protein

• nucleic acid

Starches and sugars are examples of

• carbohydrates

• lipids

• proteins

• nucleic acids

Enzymes are a group of _ that control the rate of chemical reactions in the cell.

• carbohydrates

• lipids

• proteins

• nucleic acids

Tags

NGSS.HS-LS1-1

Fats and oils are examples of

• carbohydrates

• lipids

• proteins

• nucleic acids

Which organic compounds are a source of immediate energy?

• carbohydrates

• lipids

• proteins

• nucleic acids

Which organic compounds store energy?

• carbohydrates

• lipids

• proteins

• nucleic acids