[03] Cellular Metabolism Flashcards
What does the term “cellular metabolism” refer to?
The set of chemical reactions occurring within cells to maintain life.
What are the two main categories of metabolic reactions?
- Anabolism
- Catabolism
Define “anabolism” in the context of cellular metabolism.
The process of building up or synthesizing complex molecules from simpler ones.
Provide an example of an anabolic process in cellular metabolism.
The synthesis of proteins from amino acids.
Define “catabolism” in the context of cellular metabolism.
The process of breaking down complex molecules into simpler ones.
Provide an example of a catabolic process in cellular metabolism.
The breakdown of glucose in the process of glycolysis.
What is the role of ATP in cellular metabolism?
ATP acts as the main energy currency for cells.
What is ATP?
Adenosine Triphosphate
Where is most ATP produced in a cell?
In the mitochondria.
What is the process called that produces ATP in the mitochondria?
Oxidative phosphorylation
What are the three stages of cellular respiration involved in ATP production?
- Glycolysis
- Krebs Cycle (Citric Acid Cycle)
- Oxidative Phosphorylation
Where does glycolysis occur in the cell?
In the cytoplasm
What is the main outcome of glycolysis?
The breakdown of glucose into pyruvate, producing a small amount of ATP.
Where does the Krebs Cycle occur in the cell?
In the mitochondrial matrix
What is the main outcome of the Krebs Cycle?
The breakdown of acetyl CoA (derived from pyruvate) into CO2 and high-energy electron carriers (NADH, FADH2).
