CELL RESPIRATION Review
1) What is the purpose of cell respiration? to produce _________ from ___________
2) What is overall equation for respiration?
3) What is the equation for photosynthesis?
4) During aerobic cell respiration what does the carbon in glucose become? _______________
5) What are the 2 Hydrogen carrying energy molecules in cell respiration that carry electron
energy to the electron transport system to change into ATP? __________, ___________
6) Glycolysis –
a) During glycolysis, the sugar _____________ is broken down into 2 molecules of _________
b) The energy produced by glycolysis are 2 molecules of _________ and 2 molecules of ______
c) The presence of what substance determines if Aerobic respiration will continue? __________
d) Where does glycolysis take place? _______________
7) Fermentation – Anaerobic respiration
a) During fermentation, pyruvate is turned into alcohol, ____________ and ___________
b) Which of the above products forms in muscles when they do not get enough oxygen?
_______________ ________
c) Name some foods that rely on fermentation to produce._____________, _____________
d) Bacteria can not undergo aerobic respiration because they lack ________________
8) Krebs Cycle –
a) To enter the Krebs cycle, each molecule of pyruvate must lose one _______ and add CoA to
become __________________. This release the hydrogen carrying energy molecule _________
b) What does the carbons released from pyruvate become in the Krebs cycle? _____________
c) What are the 3 types of energy molecules are formed as the pyruvate is broken down?
__________________ and ______________ and ____________
e) The NADH and FADH2 formed during Krebs cycle will later be turned into ______ in the
electron transport system
f) Where does the Krebs cycle take place? ________________
9) Electron transport chain – (system) – ETC
a) Where does the electron transport system take place? _________________
b) The purpose of the electron transport chain is to change hydrogen electron carriers into ___
c) What two energy carriers release their electrons to form ATP _____________ and ________
d) What molecule receives the electrons at the end of the chain? _________
e) What molecule is formed from the oxygen and hydrogen during the ETC? ________
f) How many ATP molecules form from 1 NADH? _______
g) How many ATP molecules form from one molecule of FADH2? __________
h) What are the ATP total production from ONE glucose molecule?
Glycolysis
= __________ ATP
Krebs cycle = __________ ATP
ETC
= __________ ATP
Total ATP
= __________ ATP
10)On mitochondria diagram below, label the following: cytoplasm, outer membrane, inner
membrane, and matrix. Also on diagram, show with a label where the following occur:
Glycolysis, Krebs cycle and ETC