Answer the following question given this paragraph: pH values for several common materials are listed. Q: What can be used to speed up biochemical reactions? A:
OPTIONS:
- proteins
- hormones
- carbohydrates
- enzymes

Answer: enzymes

Answer the following question given this paragraph: Plants are multicellular and eukaryotic, meaning their cells have a nucleus and membrane-bound organelles. Q: Plants are described by what term, meaning their cells have a nucleus and membrane-bound organelles? A:
OPTIONS:
- complex
- prokaryotic
- walled
- eukaryotic

Answer: eukaryotic

Answer the following question given this paragraph: A: The weakest acid on the scale is milk, which has a pH value between 6.5 and 6.8. The strongest base on the scale is liquid drain cleaner, which has a pH of 14. Q: Is an acid lower or higher than 7 on the ph scale? A:
OPTIONS:
- exactly 7
- higher than 7
- twice as much as 7
- lower than 7

Answer:
lower than 7