Cellular Respiration
How many molecules of ATP are produced during glycolysis (the net gain of ATP molecules)?
2
How many times must the Kreb's cycle (citric acid cycle) run for each glucose molecule?
2
Kreb's Cycle (aka Citric Acid Cycle) turns ___ times for each glucose molecule.
2
How many carbon atoms are found in one molecule of glucose?
6
What is the correct equation for cellular respiration?
6O2 + C6H12O6 6CO2 + 6H2O + Energy
Cellular respiration uses oxygen to convert the chemical energy stored in organic molecules into
ATP
During the first 3 steps of cellular respiration, some ____ molecules are formed, which can be used by the cell to perform cell activities.
ATP
The energy molecule formed from cellular respiration
ATP
The energy of the electrons passing along the electron transport chain is used to make
ATP
Which of the following molecules contains three phosphate groups?
ATP
Which of the following molecules is not either oxidized or reduced during electron flow through the electron transport chain?
ATP
What is the starting material of the Kreb's Cycle (citric acid cycle)?
Acetyl-CoA
The two ATP molecules that trigger glycolysis by splitting glucose in half are referred to as ___ ___
Activation Energy
Organisms, such as plants, that make their own food are called
Autotrophs
As H's are released from the reactions, the remaining C's and O's combine to form
Carbondioxide
What is it called when asking ATP and some heat by converting glucose in many small steps in a controlled series of reactions?
Cellular Respiration
Why does glucose's name change during the reactants of cellular respiration?
Chemical Structure changes as it is oxidized
Which of the following is NOT a part of an ATP molecule?
Chlorophyll
A fire burning is a fast___ reaction and cellular respiration is a slow___ reaction, with many steps.
Combustion, Controlled
In what part of the cell does glycolysis take place?
Cytoplasm
Which of the following is not a structural component of the mitochondria?
Cytoplasm
Every time an H is released from the reaction, NAD or FAD, which are ___ ____ will take the e-/H+ to the ETC.
Electron Carriers
ADP is one of the principal chemical compounds that living things use to store energy. T or F
False, ATP
Protein structures in mitochondria that act like miniature turbines and convert ADP into ATP are called electron transport chains.
False, ATP synthase
The molecule used for fuel in cell respiration
Glucose
The reactant that loses e- (H) in cellular respiration
Glucose
During which metabolic stage is glucose broken down to pyruvate?
Glycolysis
Which of the following events do not take place in the mitochondria?
Glycolysis
Which of these processes takes place in the cytoplasm of a cell?
Glycolysis
Organisms that cannot make their own food and must obtain energy from the foods they eat are called
Heterotrophs.
The purpose of the first three steps of cellular respiration is to get the___ off the glucose
Hydrogen
Two things that leave the glucose molecule as it is being
Hydrogen Carbon Dioxide
The stored energy of glucose is in the
Hydrogens
In Glycolysis what happens to glucose
It gets split into two PGAL's
In what cellular organelle is NADH oxidized?
Mitochondria
The organelle where cellular respiration takes place
Mitochondria
What is the main cellular structure involved in respiration?
Mitochondria
Glycolysis takes place in
Outside Mitochondria
Kreb's Cycle starts and ends with ___ ___.
Oxaloacetic Acid "The Ox"
What is the name of the molecule generated in the final step of the Kreb's cycle) citric acid cycle and is also used in the first step?
Oxaloacetic acid
What type of metabolic reaction involves a loss of electrons from the molecule involved?
Oxidation
When one molecule loses an e- (or H) it is
Oxidized
In the first three steps of cellular respiration, glucose is ___ and NAD/FAD are ___.
Oxidized, Reduced
The reactant that gains e- (H) in cellular respiration
Oxygen
What molecule is essential for aerobic respiration to take place?
Oxygen
Which of the following is not one of the three major organic compounds found in food?
Oxygen
How do you spell PGAL
Phosphoglyceraldehyde
In Glycolysis, glucose changes to PGAL and then to___ ___.
Pyruvate Acid
What is the end product of glycolysis?
Pyruvic Acid
When one molecule gains an e- (or H) it is
Reduced
What type of metabolic reaction involves a gain of electrons by the molecule involved?
Reduction
Which of the following metabolic processes generates the most ATP?
The electron transport chain
The Krebs cycle produces electron carrier molecules that play a role in the electron transport chain.
True
The products of glycolysis are 2 ATP, 2 NADH, and 2 pyruvic acid molecules. T or F
True
Which of the following is NOT a true statement about ATP?
Used ATP is discarded by the cell as waste.
What molecule is produced when oxygen is reduced by the electrons in the electron transport chain?
Water
Which of these is a product of cellular respiration?
Water
Energy is released from ATP when
a phosphate group is removed.
The Krebs cycle starts with
acetyl coA and yields carbon dioxide.
What are the three parts of an ATP molecule?
adenine, ribose, triphosphate tail
When electrons are transferred, they carry____ with them
energy
What are the reactants in the equation for cellular respiration?
glucose and oxygen
Which of the following is the correct sequence of events in cellular respiration?
glycolysis Krebs cycle electron transport
Cellular respiration is called an aerobic process because it requires
oxygen.
