Cellular Respiration Flashcards
Where does glycolysis occur?
in the cytosol
Where does the Krebs cycle occur?
in the matrix of the mitochondria
Where does the Electron Transport Chain occur?
in the cristae of the mitochondria
What factors affect the rate of respiration?
Temperature, Glucose availability, Oxygen concentration
Define ATP
Universal currency of energy in a cell
Define coenzymes
Molecules that are used as loaded or unloaded forms to move energy, protons and electrons between reactions in the cell in a cyclical manner
Name the outputs of glycolysis in aerobic respiration
2 pyruvate, 2ATP and 2 NADH
Name the waste product formed in animals from anaerobic respiration
Lactic acid (Lactate)
Name the waste product formed in yeast and plants from anaerobic respiration
Ethanol and carbon dioxide
Name the products of the Krebs cycle
Carbon dioxide and 8NADH, 2 FADH2 and 2 ATP.
Name the products of the Electron Transport Chain
26-28 ATP. Water, 10 NAD+ 2 FAD+
Name three features that indicate mitochondria’s endocymbiotic background
Own DNA genome
Bacterial ribosomal RNA
Double membrane
How many ATP are made in aerobic respiration?
30-32 ATP
How many ATP are made in anaerobic respiration?
2 ATP
How many net ATP are made in glycolysis?
2 ATP
How many net ATP are made in the Krebs cycle?
2 ATP
How many net ATP are made in the Electron Transport Chain?
26-28ATP
Write the word equation for aerobic cellular respiration
Glucose + Oxygen goes to Carbon dioxide + Water
Write the chemical equation for aerobic cellular respiration
C6H12O6 + 6O2 goes to 6CO2 + 6H2O
What is the crinkly part of the mitochondria called?
Cristae
Describe the process of glycolysis
Glucose is broken into 2 Pyruvate creating 2ATP and 2NADH
Describe the process of the Krebs cycle
Removal of H+ions from pyruvate creating loaded coenzymes and CO2 as a waste product
Describe the process of the Electron Transport Chain
Loaded coenzymes molecules and H+ ions are used to create a concentration gradient that drives the synthesis of ATP. Oxygen is the final acceptor of the H+ ions and electrons forming water.
Which part of aerobic respiration doesn’t actually require oxygen?
Glycolysis (this would therefore occur in both anaerobic and aerobic)
