Cellular Respiration Quiz Flashcards
What is cellular respiration?
The process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.
True or False: Cellular respiration occurs in both plants and animals.
True
What are the three main stages of cellular respiration?
Glycolysis, Krebs cycle, and Electron Transport Chain.
Fill in the blank: Glycolysis takes place in the _______.
cytoplasm
What is the primary purpose of glycolysis?
To break down glucose into pyruvate and produce ATP.
Which molecule is produced at the end of glycolysis?
Pyruvate
True or False: The Krebs cycle occurs in the mitochondria.
True
What is the main product of the Krebs cycle?
NADH, FADH2, and ATP
Which gas is released as a byproduct of the Krebs cycle?
Carbon dioxide
What role do NADH and FADH2 play in cellular respiration?
They carry electrons to the Electron Transport Chain.
Fill in the blank: The Electron Transport Chain is located in the _______.
inner mitochondrial membrane
What is the final electron acceptor in the Electron Transport Chain?
Oxygen
True or False: ATP is produced during glycolysis.
True
What is the net gain of ATP from glycolysis?
2 ATP
How many ATP molecules are produced from one glucose molecule during cellular respiration?
Up to 38 ATP under optimal conditions.
What is fermentation?
An anaerobic process that allows for the production of energy without oxygen.
Fill in the blank: Lactic acid fermentation occurs in _______ cells.
muscle
What is the main product of alcoholic fermentation?
Ethanol and carbon dioxide.
True or False: Cellular respiration is an exothermic reaction.
True
What is the energy currency of the cell?
ATP
What is the role of oxygen in cellular respiration?
It acts as the final electron acceptor in the Electron Transport Chain.
Fill in the blank: The process of converting glucose into energy is called _______.
cellular respiration
What are the two types of anaerobic respiration?
Lactic acid fermentation and alcoholic fermentation.
What is produced during the transition reaction before the Krebs cycle?
Acetyl-CoA and carbon dioxide.
What is oxidative phosphorylation?
The process of generating ATP using the energy from the Electron Transport Chain.
True or False: Glucose is the only molecule that can undergo cellular respiration.
False
