Cell Respiration and Photosynthesis Flashcards
4 stages of cellular respiration?
Glycolysis,
link reaction,
Kreb cycle,
electron transport, oxidation and phosphorylation
Where does cellular respiration take place?
Cytoplasm and mitochondria
What is glycolysis?
it is the splitting of glucose into 2 3 carbon compounds.
it has two phases. phase 1 is for energy investment and phase 2 is for energy payoff.
2 ATP go into phase 1 and 4 come out of phase 2.
Takes place in cytoplasm
Does not require oxygen
What is the Link reaction?
It is there to produce acetyl COA (coenzyme)
Goes from pyruvate acid (3 carbon) – Acetyl COA ( 2 carbon) — OAA (4 carbon)
What is the Kreb cycle and its outcomes?
Takes place in the matrix
Positive outcomes - 8 NADH, 2 FADH2, 2 GTP
Negative outcomes - 6 CO2
What is FAD reduced to?
FADH2
What does every NAD+ produce?
3 ATP for every FADH
Where does electron transport take place?
The inter membrane compartment
Where does oxygen come from?
Ventilation
Heterotrophs?
Eat other organisms - animals
Autotrophs
Get energy from sunlight - plants
What is the welwitschia?
Mr. stewart favourite plant. Only found in Nambia. Has 2 plants entire life and 15-20 meter long roots. Doesn’t produce flower but produces seeds.
Two different types of glycolysis?
Anaerobic (fermentation)
Aerobic - cell respiration
What causes the movement of hydrogen ions to the inter membrane compartment during cel respiration?
Electrons
What two things are produced outside the mitochondria?
Pyruvate and lactic acid
What are products of Aerobic respiration?
ATP and pyruvate
How many ATP does each glucose molecule produce from glycolysis and cell respiration?
38
Where does the Kreb cycle take place?
In the matrix of the mitochondria
What is the starting substrate for the Kreb cycle?
OAA
What is the main product of the break down of glucose by yeast?
Ethanol
What delivers hydrogen ions and electrons to cristae?
NAD+
What is the major waste product of the Kreb cycle?
CO2