29 Questions
What is the definition of catabolism?
The process of breaking down large nutrient molecules into smaller molecules with the concurrent production of energy.
Which process involves the conversion of glucose to Pyruvic Acid?
Glycolysis
What is the function of NAD+/NADH in cellular metabolism?
Transfer of electrons in biological oxidation-reduction reactions
Which compound is considered the most important in the transfer of phosphate groups in metabolism?
ATP
What does Coenzyme A (CoA) primarily facilitate the transfer of in metabolism?
Acetyl groups
In which process are two phosphoric anhydride bonds and one phosphoric ester bond found?
ATP synthesis
Which molecule is oxidized in step 7 of the citric acid cycle?
Fumarate
Which enzyme catalyzes the formation of succinyl CoA in the citric acid cycle?
α-Ketoglutarate dehydrogenase
What molecule is produced by the oxidation of succinate in the citric acid cycle?
Fumarate
What is the product when a phosphate group is transferred to ADP in the citric acid cycle?
ATP
Which compound is regenerated in the last step of the citric acid cycle?
Oxaloacetate
Where is the enzyme that carries out the oxidation of succinate to fumarate located?
Inner membrane of the mitochondrion
What is the function of acetyl CoA in cellular respiration?
Transport the acetyl group to the citric acid cycle
Which molecule is produced by the oxidation of the two-carbon molecule in pyruvate?
NADH
Where does the Krebs Cycle (TCA cycle) occur within the cell?
Mitochondrial matrix
What is the main purpose of the Krebs Cycle in cellular respiration?
Generate ATP
In the context of cellular respiration, what role does Coenzyme A (CoA) play?
Acts as an energy carrier
Which molecule is not directly involved in the production of ATP in the TCA cycle?
ADP
What is the role of NAD+ in cellular respiration?
Acts as an oxidizing agent
Which molecule is reduced to NADH?
NAD+
What is the function of Coenzyme A in cellular respiration?
Carries acetyl groups
Where does glycolysis occur in eukaryotic cells?
Cytoplasm
What is the net gain of ATP molecules from glycolysis?
Two ATP
What is the main function of the electron transport chain in cellular respiration?
To create an electrochemical gradient for the production of ATP
Which protein complex in the electron transport chain is responsible for pumping four hydrogen ions across the membrane?
Complex I
What is the role of flavin mononucleotide (FMN) in the electron transport chain?
To carry electrons to Complex I
Where specifically does the electron transport chain take place within the cell?
Mitochondria inner membrane
Which molecule is directly received by Complex II in the electron transport chain?
FADH2
What is a prosthetic group in the context of the electron transport chain?
A non-protein molecule required for a protein's activity
Learn about cellular metabolism, including the definition, pathways, catabolism, and anabolism. Understand the sum of all chemical reactions in a cell or organism that help maintain its dynamic state.
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