Cellular Respiration Flashcards
To understand Cellular Respiration.
What organisms trap sunlight and store it in carbohydrates?
Plants
What 2 organisms break down carbohydrates to release energy from cells?
Plants and Animals
What is the main energy currency of a cell
ATP
Define Cellular Respiration
The process of cells releasing energy by breaking down food.
What process begins cellular respiration and does it produce much ATP?
glycolysis and no
If there is no oxygen in cells, the products of glycolysis enter fermentation pathways that creates no additional……
ATP
Fermentation is …………. because no oxygen is used.
anaerobic
If oxygen is present in cells, the glycolysis products enter the………
Krebs Cycle
Does aerobic respiration produce much ATP?
Yes
What simple sugar starts glycolysis?
Glucose
In glycolysis, glucose is broken into 2 molecules that contain …….. carbon molecules each
3
Glycolysis takes place in the ……..
Cytoplasm
Name the 2 types of fermentation
lactic and alcoholic
Where does fermentation take place?
Cytoplasm
Lactic acid helps to make ……… & ………..
Cheese and Yogurt
What effect does lactic acid have on muscle cells?
A burning sensation.
Yeasts carry on what type of fermentation?
Alcoholic
A gas called ……. is made during alcoholic fermentation.
CO2
Aerobic respiration requires what gas?
Oxygen
How much more ATP does aerobic respiration produce than glycolysis alone?
34
Name the 2 major stages of aerobic respiration.
Krebs Cycle, Electron Transport Chains
What is completed in the Krebs cycle?
The breakdown of glucose
The energy carrier NAD+ is reduced to what substance?
NADH
Which part of aerobic respiration makes most of the ATP?
Electron Transport Chain
Where does aerobic respiration take place in prokaryotes?
cytoplasm
Where does aerobic respiration take place in prokaryotes?
mitochondria
The first acid produced in the Kreb’s cycle is …..
citric acid
In the Kreb’s cycle, NAD+ becomes …….. and FAD becomes ……
NADH;FADH
Is any ATP made in the Kreb’s cycle?
Yes, 1
Which gas is a waste product of the Kreb’s cycle?
CO2
The ……….. ……….. ………… is the second part of aerobic respiration.
ETC (Electron Transport Chain)
Where does the ETC take place in eukaryotic cells?
Cristae
Which gas serves as a final acceptor of electrons in the ETC?
Oxygen
What is the final product of the ETC?
Water
How many ATP’s are made in glycolysis?
2
How many ATP’s are make in the Krebs Cycle?
1
How many NADH molecules are made in aerobic respiration?
4
How many FADH molecules are made in aerobic respiration?
1
How many ATP are made by the electron transport system?
0
What is the maximum number of ATP that can be produced by each glucose molecule?
36
