Cellular Respiration Flashcards
What is cellular respiration ?
A release of energy from food substances in living cells
What are the two kinds of cellular respiration ?
Anaerobic
Aerobic
Aerobic respiration is what?
A process where oxygen breathing creatures turn fuel like fats or sugars into energy by the help of oxygen
What are the inputs of cellular respiration
Glucose and oxygen
What are the products of cellular respiration
ATP, water & carbon dioxide
In cellular respiration organisms _____ glucose to make what ?
Break glucose down to make ATP. Unlike photosynthesis where they make glucose
Tell me about Glycolysis
Inside cytoplasm
Anaerobic (oxygen not needed)
Glucose in glycolysis converts into pyruvate to be more useable
What is NADH
A co-enzyme that has the ability to transfer electrons which is helpful when it comes to making more ATP
All cells need to make ATP, if there are no oxygen available how do they make ATP?
Fermentation
What is the beginning steps of glycolysis?
Glucose is converted into two pyruvate, also yielding 2 ATP’s & 2 NADH’s
Whats the intermediate step that occurs in Glycolysis?
Pyruvate is transported into the mitochondria matrix where it becomes oxidized and converted to acetyl CoA which is used by the next step.
Carbon dioxide is released & 2 NADH are produced
Krebs Cycle
Still in mitochondria matrix
Considered aerobic process (doesnt consume oxygen)
Input The 2 acetyl CoA
Output: 2 ATP, 6 NADH, 2 FADH
Step 3: electron transport train & chemiosmosis
Involves inner mitochondria membrane
Does require oxygen
- electrons from NADH & FADH to protein complexes in electron carriers.
- electrons used to generate a proton gradient (protons pumped into inter membrane space)
Protons being pumped out into intermembrane space can generate what?
An electrical and chemical gradient
How is ATP made in chemiomosis
Protons travel down their electro chemical gradient through a portion of ATP synthase powering it to make ATP
