CELLULAR RESPIRATION Flashcards
Week 4
What is cellular respiration?
The process by which organic molecules, taken in as food, are broken down in the cells to release energy for the cell’s activity.
What type of reaction is cellular respiration?
A catabolic reaction
What is cellular respiration used for?
The movement of the cell, uptake of materials from surroundings or production and secretion of new chemical compounds.
What is the worded equation for cellular respiration?
Glucose + Oxygen - Water + Carbon Dioxide + Energy (ATP)
Where does the first stage of cellular respiration take place?
The anaerobic stage takes place in the cytoplasm.
What are the three steps in cellular respiration?
- Glycolysis
- Krebs Cycle
- Electron Transport System
What is the first step of glycolysis?
Requires no oxygen and breaks down one molecule of glucose to produce two molecules of ATP
What is the Krebs Cycle?
During aerobic respiration in the inner membrane of the mitochondria (cristae) and produces 2 more ATP
What is the electron transport system?
The only stage that uses oxygen. Electrons are passed between molecules, resulting in oxygen molecules forming water. It produces 26-34 ATP
What is aerobic respiration?
Respiration requiring oxygen
What is anaerobic respiration?
Respiration that does not require oxygen.
