BIOBEYIND ENERGY CHALLENGE RESPIRATION UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS VERIFIED 2027 EDITION
1. Cellular respiration in a eukaryotic cell
Increasing, increasing, decreasing, not present, increasing, decreasing
2. Glycolysis in a eukaryotic cell
Not present, increasing, decreasing, not present, increasing, not present
3. Were these molecules inputs, outputs, or not involved in glycolysis? Select all that apply:
ATP - In and Out Carbon Dioxide - not involved Glucose - in NAD+ - in NADH - out Oxygen - not involved
Pyruvate - out Water - not involved
4. How many of each of these molecules were used or made at the end of a single round of glycolysis?
Use net numbers (that is, if 10 were made but 3 were used, enter 7). Enter your response as a whole
number.
ATP - 2 - produced Glucose - 1 - consumed NADH - 2 - produced Pyruvate - 2 - produced
5. What do you think is responsible for the points on the graph where you see a small decrease in the
number of ATP?
ATP is being used in the first step of glycolysis, but then more ATPs are being produced in the second step
of glycolysis
6. Which is the smallest molecule shown on this screen?
Pyruvate
7. What type of biological macromolecule is glucose?
carbohydrate
8. To continue, enter the symbol of the element that carries the positive charge in NAD+
N
9. What is the major difference between ADP and ATP?
one phosphate
10. What is the total charge on the phosphate ion? Enter the charge as the symbol and then the value.
(ex: +2)
-3
11. Kerbs Cycle
increasing, decreasing, not present, not present, increasing, not present
12. Taking that into consideration, what must occur before the Krebs Cycle can run? Choose the best
answer below:
Pyruvate or acetyl-CoA must be transported from the cytoplasm to the mitochondria
13. Were these molecules inputs, outputs, or not involved in the Krebs Cycle? Select all that apply:
ATP - out Co2 - out FAD - in FADH2 - out NAD+ -in NADH - out O2 - not involved Pyruvate - in
14. Electron carriers are critical to the energy process, and produced in several places along the way.
How many electron carriers have been produced so far? Enter your answers as whole numbers
2, 5, 10, 12, 24
1
QUESTIONS AND CORRECT ANSWERS VERIFIED 2027 EDITION
1. Cellular respiration in a eukaryotic cell
Increasing, increasing, decreasing, not present, increasing, decreasing
2. Glycolysis in a eukaryotic cell
Not present, increasing, decreasing, not present, increasing, not present
3. Were these molecules inputs, outputs, or not involved in glycolysis? Select all that apply:
ATP - In and Out Carbon Dioxide - not involved Glucose - in NAD+ - in NADH - out Oxygen - not involved
Pyruvate - out Water - not involved
4. How many of each of these molecules were used or made at the end of a single round of glycolysis?
Use net numbers (that is, if 10 were made but 3 were used, enter 7). Enter your response as a whole
number.
ATP - 2 - produced Glucose - 1 - consumed NADH - 2 - produced Pyruvate - 2 - produced
5. What do you think is responsible for the points on the graph where you see a small decrease in the
number of ATP?
ATP is being used in the first step of glycolysis, but then more ATPs are being produced in the second step
of glycolysis
6. Which is the smallest molecule shown on this screen?
Pyruvate
7. What type of biological macromolecule is glucose?
carbohydrate
8. To continue, enter the symbol of the element that carries the positive charge in NAD+
N
9. What is the major difference between ADP and ATP?
one phosphate
10. What is the total charge on the phosphate ion? Enter the charge as the symbol and then the value.
(ex: +2)
-3
11. Kerbs Cycle
increasing, decreasing, not present, not present, increasing, not present
12. Taking that into consideration, what must occur before the Krebs Cycle can run? Choose the best
answer below:
Pyruvate or acetyl-CoA must be transported from the cytoplasm to the mitochondria
13. Were these molecules inputs, outputs, or not involved in the Krebs Cycle? Select all that apply:
ATP - out Co2 - out FAD - in FADH2 - out NAD+ -in NADH - out O2 - not involved Pyruvate - in
14. Electron carriers are critical to the energy process, and produced in several places along the way.
How many electron carriers have been produced so far? Enter your answers as whole numbers
2, 5, 10, 12, 24
1
