Cellular Respiration Flashcards
(33 cards)
What are the 3 main steps in Cellular Respiration?
Glycolysis
Citric acid cycle
Oxidative phosphorylation
What is the formula for Aerobic Cellular Respiration?
C6H12O6 + 6O2 → → → 6CO2 + 6H2O + ATP
What is Cellular Respiration?
Metabolic pathway that transforms the energy in glucose into ATP
How many ATP can be made from cellular respiration?
Up to 36
What is the formula for glucose?
C6H12O6
Where does glycolysis happen?
In the cytoplasm
What are the two parts of oxidative phosphorylation?
Electron transport and Chemiosmosis
Explain the mitochondrial structure.
It has a double membrane
It has an outer membrane and an inner membrane. The space between the two is called inter membrane space. The space inside the inner membrane is called the matrix
What are the 2 parts in Glycolysis?
The energy investment phase and the energy harvesting phase
What happens in the energy investment phase?
•Break one molecule of glucose into Carbons
•Use energy from 2 ATP (energy source) by turning it into 2 ADP
•Phosphorylate the 3 carbons (add one phosphate)
What happens in the first part of energy harvesting phase?
Add another phosphate to the carbon molecules
Harvest H atoms, turning NAD+ into NADH
What is produced in glycolysis?
2 pyruvate
4 ATP
2 NADH
What is the main sugar that is used in cellular respiration? Can other sugars be used?
The main sugar is glucose
Other sugars can be used but won’t work as well.
What happens in the second part of the energy harvest phase?
The 2 phosphates from the carbon molecule separate and bind with 2 ADP
Turning the 2 ADP into 2 ATP
The carbon molecule turns into a pyruvate molecule
What happens after glycolysis if we have oxygen and if we don’t have oxygen?
If we have oxygen, the aerobic cellular respiration proceeds
If we don’t, fermentation happens
When does the “prep” reaction start?What happens during the “prep” reaction?
It happens in the mitochondria after glycolysis
It prepares the pyruvate for the citrus acid cycle by adding 1 CO2 per pyruvate
What does the citric acid cycle start with?
A 6 carbon molecule (4 carbon and a 2 carbon)
What happens in the citric acid cycle?
A series of chemical reactions that harvested the energy in the pyruvate and H atoms are transferred to NADH and FADH2
Where does citric acid cycle happen?
In the mitochondria matrix
What are NAD+ and FAD+
Coenzymes
In the citric acid cycle, what happens to the carbons we get from glucose?
Carbons are released out of our body as CO2
What happens to the coenzymes NAD+ and FAD+ in the the citric acid cycle?
NAD+ and FAD+ turn into NADH and FADH2
What are the 2 parts of oxidative phosphorylation?
Electron transport chain and
Chemiosmosis
What is the main thing that happen during oxidative phosphorylation? What does it need?
It requires Oxygen
It adds PO4 (phosphate group) to ADP and turns it into ATP
ADP + PO4 → ATP
