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- 1. Multiple Choice
Water is a _ molecule.
nonpolar
polar
- 2. Multiple Choice
Water _ heat when it evaporates.
absorbs
releases
- 3. Multiple Choice
Water molecules are
cohesive
adhesive
nonpolar
fatty
- 4. Multiple Choice
Which pair is incorrect?
carbohydrates - provide energy
lipids - provide insulation
nucleic acids - store hereditary information
proteins - provide energy
- 5. Multiple Choice
Which is the strongest acid?
ph of 1
ph of 4
ph of 7
ph of 9
- 6. Multiple Choice
Which is the strongest base?
ph of 1
ph of 4
ph of 7
ph of 9
- 7. Multiple Choice
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.
- 8. Multiple Choice
Enzymes _ activation energy
raise
lower
- 9. Multiple Choice
Because enzymes speed up chemical reactions, they are called
catalysts
metabolism
viruses
living
- 10. Multiple Choice
Which is the wrong polymer/monomer pair?
nucleic acids : nucleotides
lipids: monosaccharides
carbohydrates: monosaccharides
proteins : amino acids
- 11. Multiple Choice
Only proteins
provide energy
transport O2
build tissues
catalyze chemical reactions
- 12. Multiple Choice
Which elements are found in carbohydrates, lipids, proteins and nucleic acids (in that order)?
CHO 1:2:1, CHO, CHON, CHONP
CHO, CHO 1:2:1, CHON, CHONP
CHO 1:2:1, CHO, CHONP, CHON
CHO, CHO 1:2:1, CHONP, CHON
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