Download Study guide Cell Resp Ch 9

Chapter 9 Study Guide “Cellular Respiration”
Name _____________________________________
Due Date: ____________Test Date: __________
I. Use the following processes to describe each phrase:
Cellular respiration- used 2x
glycolysis
lactic acid fermentation
alcoholic fermentation
lactic acid
Important in baking bread ________________________
Builds up in muscles after a few seconds of intense activity ____________________
Requires oxygen and glucose ________________________
Produces 2 ATP molecules and pyruvic acid ______________________
Almost the opposite process of photosynthesis ______________________
The reason why runners breather heavily after a race ________________________
II. Write: CELLULAR RESPIRATION or PHOTOSYNTHESIS below to fill in the blanks.
____________________ reactants are CO2 and H20
_____________________ occurs only in plants, algae, and some other micro-organisms
____________________ 6O2 + C6H12O6
6CO2 + 6H2O + Energy
____________________ uses oxygen to release energy from food
_____________________organelle where this occurs is the chloroplast
____________________organelle where this occurs is the mitochondria
____________________ 6CO2 + 6H2O
6O2 + C6H12O6
____________________light energy converts CO2 and water into high energy sugars and oxygen
____________________occurs in plants but not animals
____________________occurs in all eukaryotes including plants and animals
Fill in the blank for each summary. Use each word in the box below.
ATP
anaerobic
Pyruvic acid
NAD+
glycolysis
fermentation
calorie
two
anaerobic
glucose
NAD+
NADH
cytoplasm
oxygen
9-1 Chemical Pathways:
A ________________ is the amount of energy needed to raise the temperature of 1 gram of water 1 degree
Celsius.
Cells gradually release the energy from food. This process, called cellular respiration, begins with a
pathway called ___________________________________(STAGE ONE).
Glycolysis is the process in which a _____________________ molecule is split in half. This forms ______________
molecules of _____________________ _____________, a 3-carbon compound. Glycolysis takes place in the
__________________________ of the cell.
The electron carrier________________ accepts a pair of high energy electrons and becomes__________________.
When oxygen is NOT present, ________________________________ follows glycolysis. Fermentation releases
energy from food molecules by forming ATP without oxygen.
During fermentation, cells convert NADH back in to the electron carrier, _______________ that is needed for
glycolysis. This lets glycolysis continue to make a steady supply of ATP.
Fermentation occurs when no _______________________ is present so it is called an _____________________
process. Fermentation is/is not (circle) a part of cell respiration.
Alcoholic Fermentation: Yeasts and a few other microorganisms carry out alcoholic fermentation.
The equation is:
Pyruvic acid
+ ____________
alcohol + ____________ + ______________
Lactic acid fermentation occurs in _________________ during rapid exercise. The equation is:
Pyruvic acid + _____________
lactic acid + ____________
Compare and contrast –
lactic acid fermentation
vs.
alcoholic fermentation
9-2 The Krebs Cycle : Use the words in the box below AND your diagrams and notes to complete.
Each word is used once.
Citric acid
pyruvic acid
Carbon dioxide
mitochondrion
second
electrons
ATP
NAD
Cellular respiration requires oxygen, so it is said to be aerobic. The Krebs cycle is the __________ STAGE
of cellular respiration. During the Krebs cycle, _______________________ ______________________ is broken down
into carbon dioxide in a series of energy extracting reactions.
The Krebs cycle is also known as the _____________________ ________________________ cycle, because citric acid
is one of its first products.
Stages of the Krebs Cycle:




The Krebs cycle starts when pyruvic acid (formed by glycolysis) enters the
____________________________________.
The Krebs cycle continues in a series of reactions. In these reactions, two energy carriers accept
high energy _______________________. NAD+ is changed to ____________________, and FAD is changed to
FADH2. These molecules carry the high energy electrons to the electron transport chain.
Two
are produced in the Krebs Cycle.
is released as a product.
ETC- Electron Transport Chain:
36
Water
glucose
oxygen
Use the words below to complete the summary on ETC.
ATP
two
32
The electron transport chain (STAGE THREE) uses high energy electrons to change ADP to _____________.
In the electron transport chain, high energy electrons move from one carrier protein to the next. At the
end of the chain, _____________________________is the final electron acceptor. The oxygen molecules join
with H+ ions to form
___________________.
Glycolysis produces 2 ATP molecules from one molecule of __________________. The Krebs cycle made
ATP and electron transport chain made
ATP molecules per glucose
molecule. In cellular respiration, the total number of ATP made per glucose molecule is ____________ATP.
Complete the chart below.
*Stages of Cellular
Respiration
Reactants
*Products
#ATP
*Location
1.
2.
3.
TOTAL__________ATP in cellular resp.
Review powerpoint notes & quizlet.com vocab too!