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Question 21(Multiple Choice Worth 4 points)

(02.05 LC)

What molecule stores the energy that is produced during cellular respiration?

H2O
NADH
ATP
Glucose
Question 22(Multiple Choice Worth 4 points)
(02.01 MC)

One of water's unique properties is that it has strong surface tension. What do you predict would happen if water had weak surface tension?

Insects would not be able to land on or walk on water.
Plants would not be able to draw water from the ground through their roots.
Water molecules would attract each other.
Water would only be able to dissolve nonpolar substances.
Question 23(Multiple Choice Worth 4 points)
(02.02 MC)

Which of the following best explains how a dissecting microscope differs from a compound light microscope?

A compound light microscope has much greater magnification power than a dissecting microscope.
Unlike a compound light microscope, a dissecting microscope does not require a light source.
Unlike a dissecting microscope, a compound light microscope can produce a three-dimensional image.
A dissecting microscope has much greater resolution than a compound light microscope.
Question 24(Multiple Choice Worth 4 points)
(02.03 MC)

All eukaryotic cells have a cytoskeleton, including plant cells, which have cell walls as well. What does the cytoskeleton in a plant cell do that the cell wall cannot?

It acts as a framework inside the endoplasmic reticulum and keeps it from collapsing.
It helps keep the organelles in place and directs their movement as needed.
It provides energy and helps to move molecules throughout the cell.
It keeps the DNA safely enclosed in the nucleus and holds the nucleus together.
Question 25(Multiple Choice Worth 4 points)
(02.01 MC)

Which statement correctly compares the pH of water to that of other substances?

The pH of water increases as its temperature increases, while other substances have a stable pH.
The pH of water is neutral; it is higher than the pH of acids and lower than the pH of bases.
Water contains more hydrogen ions than most other substances, giving it a higher pH.
Water is neutral and has a pH of 0; acids have a pH greater than 0, and bases have a pH less than 0.

1 answer

Here are the correct answers to your questions:

Question 21: What molecule stores the energy that is produced during cellular respiration?

  • Answer: ATP

Question 22: One of water's unique properties is that it has strong surface tension. What do you predict would happen if water had weak surface tension?

  • Answer: Insects would not be able to land on or walk on water.

Question 23: Which of the following best explains how a dissecting microscope differs from a compound light microscope?

  • Answer: A compound light microscope has much greater magnification power than a dissecting microscope.

Question 24: All eukaryotic cells have a cytoskeleton, including plant cells, which have cell walls as well. What does the cytoskeleton in a plant cell do that the cell wall cannot?

  • Answer: It helps keep the organelles in place and directs their movement as needed.

Question 25: Which statement correctly compares the pH of water to that of other substances?

  • Answer: The pH of water is neutral; it is higher than the pH of acids and lower than the pH of bases.

Let me know if you need help with anything else!