Biology Lab Final Exam Review

Which tool should be used to measure the distance traveled by a pill bug?

• ruler
• triple-beam balance
• electronic balance
• microscope

Which tool should be used to determine whether an organism is prokaryotic or eukaryotic?

• meter stick
• microscope
• electronic balance
• respirometer

Which tool should be used to measure the mass of water a plant lost during transpiration?

• ruler
• triple-beam balance
• microscope
• respirometer

If you spill acid on your hand, what should you do?

• Rinse it off at the sink.
• Cry.
• Rinse it off at the sink, and then inform your instructor.
• Wipe it off with a paper towel.

You place a potted plant on a small electronic balance and see that the plant registers the maximum mass the balance can measure.  What should you do?

• Record the mass of the plant.
• Add 10 grams to the mass of the plant to account for inaccuracy of the balance at its maximum mass.
• Subtract 10 grams from the mass of the plant to account for inaccuracy of the balance at its maximum mass.
• Weigh the plant again, this time using a balance with a larger maximum mass.

During a lab investigation designed to measure the amount of oxygen produced by a water plant during photosynthesis, you measured a decrease in the volume of gas present.  Which of the following hypotheses best accounts for this decrease?

• The volume of gas decreased because oxygen was produced by photosynthesis.
• The volume of gas decreased because carbon dioxide was produced by cellular respiration.
• The volume of gas decreased because oxygen was consumed by cellular respiration.
• The volume of gas decreased because oxygen was consumed by photosynthesis.

Which of the following sentences would be the most appropriate to use in the conclusion of a laboratory report?

• Our hypothesis was proven correct.
• Our hypothesis was not supported.
• Our results differed from what we expected because we messed up.
• Our theory was proven true.

Which of the following is the most important reason why scientists publish their results in peer-reviewed journals?

• Scientists like to brag.
• Other scientists need to repeat their experiments in order to confirm their results.
• Scientists need to prove that they are actually doing work.
• Scientists have too much free time.

Which sentence would be the most appropriate to use in describing these results?

• The population of tadpoles grew consistently from 1990 to 1999.
• The population of tadpoles was stable over time.
• The population of tadpoles grew steadily and rapidly, except for 1993, when many died
• The population of tadpoles grew rapidly from 1990 to 1992, declined rapidly from 1992 to 1993, and remained relatively stable from 1993 through 1999.

This cell is most likely a/an:

• prokaryote
• eukaryote
• plant
• prokaryotic plant