Chapter 2- Biochemistry

Water is a _ molecule.

• nonpolar

• polar

Tags

NGSS.HS-PS1-3

Water _ heat when it evaporates.

• absorbs

• releases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Water molecules are

• cohesive

• adhesive

• nonpolar

• fatty

Tags

NGSS.HS-ESS2-5

Which pair is incorrect?

• carbohydrates - provide energy

• lipids - provide insulation

• nucleic acids - store hereditary information

• proteins - provide energy

Which is the strongest acid?

• ph of 1

• ph of 4

• ph of 7

• ph of 9

Which is the strongest base?

• ph of 1

• ph of 4

• ph of 7

• ph of 9

Which is false?

• Enzymes bind to a substrate.

• Enzymes slow down chemical reactions.

• Enzymes lower the activation energy.

• Enzymes are affected by temperature and pH.

Tags

NGSS.HS-PS1-5

Enzymes _ activation energy

• raise

• lower

Because enzymes speed up chemical reactions, they are called

• catalysts

• metabolism

• viruses

• living

Tags

NGSS.HS-PS1-5

Which is the wrong polymer/monomer pair?

• nucleic acids : nucleotides

• lipids: monosaccharides

• carbohydrates: monosaccharides

• proteins : amino acids