Cellular Respiration Flashcards
What are the products and reactants for cellular respiration?
Glucose and oxygen yields carbon dioxide, water and energy
What are the 3 main steps in cellular respiration?
Glycolysis, pyryvate processing and citric acid cycle
What are the end products of glycolysis?
ATP, NADH water and 2 pyruvates
What is needed to run glycolysis?
NAD +
What is glucose broken down to in the glycolysis stage?
This is the step where the glucose (6 -carbon compound) is broken down into two 3-carbon compounds
What is the problem with glycolysis?
It doesn’t make too much ATP, only 2 ATP is made from 1 glucose
Where does the making of ATP occur?
At the substrate phosphorylation level
What does phosphorylating use?
Enzymes called kinases
What needs to happen to the pyruvates?
They need to be oxidized
What needs to be released for pyruvate processing to occur?
Carbon dioxide
What does the oxidation of one pyruvate result in?
2 carbon molecules being fed into the citric acid cycle
What does fermentation do?
Regenerates NAD + in the absence of oxygen
What does the oxidation of one pyruvate result in?
2 carbon molecules being fed into the citric acid cycle
What does citrate do?
Shuts down/slows down glycolysis
What is the regulator used in the citric acid cycle called?
Citrate
What does the citric acid cycle produce for one pyruvate? eg. one turn
3 NADAH 2, one FADAH 2 and one ATP
How many times does the citric acid cycle have to process?
2 times
What does the citric acid cycle produce for every 2 turns?
Six NADAH 2, two FADAH 2 and 2 ATP
What starts the citric acid cycle?
Aceytl coa