Per the transcript, state the numbers of NADH and FADH2 produced per glucose, and the approximate ATP yield from the electron transport chain.
6 NADH, 2 FADH2; ~34 ATP
What is the chemical formula for one molecule of glucose as stated?
C6H12O6
According to the transcript, glucose plus oxygen is converted into which products?
6 CO2, 6 H2O and ATP
Which three parts make up an ATP molecule?
Adenine, ribose, and three phosphates
Glycolysis yields ATP when converting one glucose to pyruvate. Which statement best gives the concise net ATP yield per glucose?
2 ATP per glucose
What is the net ATP and NADH produced by glycolysis per glucose?
2 ATP and 2 NADH
Explain the roles of NAD+ and FAD and why fermentation occurs without oxygen.
NAD+ and FAD accept electrons during metabolism, becoming NADH and FADH2 which shuttle electrons to the electron transport chain to drive ATP production; without oxygen the chain cannot accept electrons, so cells regenerate NAD+ by reducing pyruvate (fermentation) to keep glycolysis producing ATP.
What term does the transcript use for using water to break down ATP (water + lysis)?
Hydrolysis
Which statement best summarizes the overall aerobic respiration outcome for one glucose molecule?
Six CO2, six H2O, and ATP energy
DEFINE RESPIRATION
AN INTRACELLULAR OXIDATION PROCESS IN WHICH COMPLEX ORGANIC SUBSTANCES ARE BROKEN DOWN INTO SIMPLER SUBSTANCES WITH STEPWISE RELEASE OF ENERGY.
State the net number of ATP molecules produced by glycolysis per glucose.
2 ATP
Which statement best describes glycolysis?
C. Cytoplasmic conversion of glucose to two pyruvate, net 2 ATP
Which statement best explains why ATP releases energy when it becomes ADP?
Repulsion between terminal phosphates leads to hydrolysis and phosphate loss
Which statement best explains oxygen’s role in the electron transport chain?
Terminal electron acceptor
Which molecule enters the link reaction from glycolysis?
A. Glucose
B. Pyruvate
C. Acetyl-CoA
D. Citrate
B. Pyruvate
Define “oxidative phosphorylation.”
The synthesis of ATP using energy released from electron transport and proton gradient across the inner mitochondrial membrane.
How many NADH are produced per glucose molecule during glycolysis?
2 NADH
A student investigates respiration in germinating seeds using a respirometer. If the potassium hydroxide in the apparatus is removed, what result will they observe?
CO₂ produced will not be absorbed, so the fluid marker will not move, making it seem as if no oxygen was consumed.
Which enzyme catalyzes the phosphorylation of fructose-6-phosphate to fructose-1,6-bisphosphate?
A. Hexokinase
B. Pyruvate kinase
C. Phosphofructokinase
D. Dehydrogenase
C. Phosphofructokinase
Explain why anaerobic respiration is less efficient than aerobic respiration.
In anaerobic respiration, glucose is only partially oxidized to lactate or ethanol, producing 2 ATP per glucose instead of ~32 ATP in aerobic respiration.
The final electron acceptor in aerobic respiration is ________.
Oxygen
A mitochondrion is treated with a chemical that makes the inner membrane permeable to protons. Predict the effect on ATP production.
Proton gradient collapses; chemiosmosis cannot occur, so ATP synthesis stops.
Where does the Krebs cycle occur?
A. Cytoplasm
B. Mitochondrial matrix
C. Cristae
D. Intermembrane space
Mitochondria
Outline the main products of one turn of the Krebs cycle.
3 NADH, 1 FADH₂, 1 ATP (as GTP), 2 CO₂.
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MODULE 1- Energy Flow And Nutrient Cycling47
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MODULE 1- PHOTOSYNTHESIS47
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MODULE 1-RESPIRATION48
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MODULE 2- THE CIRCULATORY SYSTEM OF MAMMALS0
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MODULE 2- TRANSPIRATION120
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MODULE 3- HEALTH AND DISEASES80
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MODULE 3- IMMUNOLOGY0
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MODULE 3- SOCIAL AND PREVENTATIVE MEDICINE0
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MODULE 3- SUBSTANCE ABUSE0
