50 Questions
Where does glycolysis take place?
Cytoplasm
What is the primary goal of cellular respiration?
Produce adenosine triphosphate (ATP)
Which stage of respiration converts glucose into two molecules of pyruvate?
Glycolysis
What is the net gain of ATP molecules from one molecule of glucose in glycolysis?
Two
Which type of respiration involves the Krebs Cycle?
Aerobic Respiration
What is the purpose of oxidative phosphorylation in aerobic respiration?
Produce ATP using electron transport chain
Which molecule is NOT produced during glycolysis?
FADH2
Where does the Krebs Cycle take place?
Mitochondrial Matrix
What is the starting molecule for the Krebs Cycle?
Pyruvate
Which molecule is fully oxidized to carbon dioxide in the Krebs Cycle?
Acetyl CoA
How many ATP molecules are produced per glucose molecule in the Krebs Cycle?
2 ATP
Where does Oxidative Phosphorylation take place?
Inner Mitochondrial Membrane
What drives the synthesis of ATP in Oxidative Phosphorylation?
Proton Gradient
How many ATP molecules are approximately obtained from Oxidative Phosphorylation?
34 ATP
What is the total ATP yield per glucose molecule in aerobic respiration?
38 ATP
Which stage of cellular respiration converts glucose into pyruvate?
Glycolysis
In which cellular component does glycolysis occur?
Cytoplasm
What is the primary product of the Krebs Cycle?
CO2
Which stage of aerobic respiration requires oxygen?
Oxidative Phosphorylation
What is the function of oxidative phosphorylation in cellular respiration?
Generates the majority of ATP
Which molecules are produced during glycolysis?
Pyruvate and NADH
Where does oxidative phosphorylation take place in a eukaryotic cell?
Mitochondria
What molecules enter the Krebs Cycle after being oxidized from glycolysis?
Pyruvate
In oxidative phosphorylation, what is the role of redox reactions?
Pump electrons across the mitochondrial membrane
What is the primary function of the electron transport chain in cellular respiration?
Transfer electrons to oxygen
During cellular respiration, what drives the synthesis of ATP?
Proton gradient across the mitochondrial membrane
Which statement is true about the efficiency of aerobic respiration compared to anaerobic processes?
Efficiency of aerobic respiration is higher
What is the total ATP yield per glucose molecule after completing both the Krebs Cycle and Oxidative Phosphorylation?
38 ATP
Which part of the cell houses the electron transport chain during oxidative phosphorylation?
Inner Mitochondrial Membrane
What is the final product when acetyl CoA is fully oxidized in the Krebs Cycle?
Carbon Dioxide
What is the net gain of NADH molecules from one molecule of glucose in glycolysis?
2
Where specifically does the Krebs Cycle (Citric Acid Cycle) occur within the cell?
Mitochondrial matrix
Which process involves the conversion of one molecule of glucose into two molecules of pyruvate?
Glycolysis
During cellular respiration, what is the primary function of converting biochemical energy from nutrients?
Release of ATP
What is the total number of ATP molecules produced from one molecule of glucose after completing both the Krebs Cycle and Oxidative Phosphorylation?
36-38
Which stage of aerobic respiration is known for producing the most ATP molecules from one molecule of glucose?
Oxidative Phosphorylation
Where does the process of oxidative phosphorylation primarily occur within the cell?
Mitochondrial inner membrane
What is the role of NADH in cellular respiration?
Accepting electrons in the Krebs cycle
Which part of the cell membrane is responsible for creating a proton gradient during oxidative phosphorylation?
Inner Mitochondrial Membrane
What is the purpose of FADH2 in cellular respiration?
Donating electrons in oxidative phosphorylation
Where does chemiosmosis occur in cellular respiration?
Intermembrane Space
Which statement accurately describes the relationship between glycolysis and the Krebs cycle?
The products of glycolysis directly enter the Krebs cycle
During cellular respiration, where are high-energy electrons carried by NADH and FADH2 ultimately used?
In redox reactions of the electron transport chain
What is the main function of ATP synthase in cellular respiration?
To catalyze the synthesis of ATP from ADP and Pi
Which statement correctly describes the relationship between aerobic respiration and anaerobic processes?
Aerobic respiration yields more energy per glucose molecule than anaerobic processes
What is the total ATP yield per glucose molecule in aerobic respiration?
38 ATP
Where does the energy released during redox reactions in the electron transport chain drive the pumping of protons?
Into the intermembrane space
What is the primary role of the Krebs cycle in cellular respiration?
Oxidizing pyruvate to acetyl CoA
Where does chemiosmosis occur in oxidative phosphorylation?
In the mitochondrial intermembrane space
What is the main function of the electron transport chain during cellular respiration?
Proton pumping
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