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Biology Chapter 7
Chapter 7 Summerize
Question | Answer |
---|---|
Phase one of the cellular respiration function to covert glucose into ATP is: _________________. | Glycolysis |
Phase two of the cellular respiration function to covert glucose into ATP is: ____________ (prep) ____________. | Preparatory/reaction |
Phase three of the cellular respiration function to covert glucose into ATP is: ____________ ______________ _____________. | Citric acid cycle |
Phase four of the cellular respiration function to covert glucose into ATP is: _____ ____________ ____________ | Electron transport chain |
Glycolysis the first stage of cellular respiration, occurs within the ___________________ of the cell. | Cytoplasm |
If __________ is present, cells will use the aerobic pathways of the citric acid cycle and electron transport chain within the mitochondria to generate ATP. | Oxygen |
__________, such as fats and proteins, may be used by the cellular respiration pathways. | Nutrients |
Cellular respiration convert the organic molecules in food into ATP, the universal ________ required by all living organisms. | Energy |
______________ exist for the production of ATP in both aerobic and anaerobic environments. | Pathways |
Cellular respiration produces __________________ _______________ from organic molecules, particularly glucose. | Adenosine triphosphate |
____________ molecules power activities at the cellular level. | ATP |
____________ ________________ is the metabolic reaction that uses the energy from the breakdown of carbohydrates (primarily glucose), fatty acids, or amino acids to produce ATP molecules. | Cellular respiration |
During cellular respiration, glucose is ________________ to CO2 which we exhale. | Oxidized |
Oxygen (O2), which we breathe in, is ___________ to H2O. | Reduced |
When glucose is oxidized, energy is ____________. | Released |
_______ is the breakdown of glucose to two molecules of pyruvate, is a series of enzymatic reactions that occur in the cytoplasm. | Glycolysis |
During Glycolysis, glucose is oxidized by the ___________ or hydrogen ions (H+) and electrons (e-). | Removal |
During Glycolysis, when NAD+ accepts electrons, __________ results. | NADH |
______________ releases enough energy to immediately give a net gain of two ATP by substrate-level ATP synthesis. | Breakdown |
Following glycolysis, if oxygen is ____________, pyruvate from glycolysis enters mitochondria. | Present |
Following glycolysis, if oxygen is ____________, pyruvate enters the fermentation pathways. | Absent |
________________ is anaerobic breakdown of glucose that results in a gain of 2 ATP and end products, such as alcohol and lactate. | Fermentation |
Fermentation involves glycolysis followed by the reduction of pyruvate by NADH, either to ___________ or to__________ and CO2. | Lactate/alcohol |
The reduction of pyruvate _________________ NAD+, which can accept more hydrogen atoms during glycolysis. | Regenerates |
Although fermentation results in only two ATP, it still provides a quick burst of energy for ______-_____, strenuous muscular activity. | Short-term |
The ________________ of lactate puts an individual in oxygen deficit. | Accumulation |
___________ ___________ is the amount of oxygen needed when lactate is completely metabolized to CO2 and H2O. | Oxygen deficit |
In the presence of oxygen, the ___________ _____________of cellular respiration occur. | Aerobic reactions |
During the _______________________ reaction in the matrix, pyruvate is oxidized, releasing CO2, | Preparatory |
NAD+ accepts __________ions and electrons, forming NADH. | Hydrogen |
______________ group is the end product. | Acetyl |
An acetyl group combines with CoA, forming ____________________________ | Acetyl-CoA |
The acetyl-CoA reaction takes place ______ for each molecule of glucose. | Twice |
The _____________ _____________ _____________ is a series of reactions occurring in the mitochondrial matrix. | Citric acid cycle |
Acetyl groups ________ the citric acid cycle | Enter |
During one turn of the Citric Acid Cycle, oxidation results in _____ CO2, ____ NADH, ___ FADH2, ____ ATP and ____ turns of the cycle per glucose molecule. | Two/three/one/one/two |
The ________ _________ of cellular respiration involves the electron transport chain located in the cristae of the mitochondria. | Final stage |
The ______________ _______ ________ is a series of electron carriers that accept high-energy electrons (e-) from NADH and FADH2. | Electron transport chain |
The electron transport chain pass electrons along until they are finally _____-_______ electrons received by oxygen, which combines with H+ to produce water. | Low-energy |
The _______________ of the electron transport chain are located in molecular complexes on the cristae of mitochondria. | Carriers |
The electron transport chain carriers capture energy from the passage of electrons and use it to pump H+ into the _________ space of the mitochondrion. | Intermembrane |
When H+ flows down its gradient into the matrix through ATP synthase complexes, energy is released and used to form ATP __________ from ADP and P. | Molecules |
Energy yield from Glucose ____________. | Metabolism. |
Of the maximum ____ ATP formed by complete glucose breakdown, _____ are the result of substrate-level ATP synthase. | 38/4 |
When complete glucose breakdown occurs, the rest are ________ as a result of the electron transport chain and the ATP synthase. | Produced |
Most cells produce fewer than ____ ATP per glucose molecule. | 36 |
Besides carbohydrates, glycerol and fatty acids from fats and amino acids from proteins can ____________ cellular respiration by entering glycolysis and/or the citric acid cycle. | Undergo |
These metabolic pathways also provide substrates for the synthesis of ______________ and ____________. | Fats/proteins |
ATP stores lots of potential ___________. | Energy |
It is a unit of energy used by __________ things. | Living |
ATP is the ____________ for cells. | Gasoline |
The arrows in the ATP ____________ means release energy. | Equation |
ATP energy is released _________! | Fast |
ATP is converted to __________ (releases most energy). | ADP |
ADP is converted to __________ (releases little energy). | AMP |
ATP is made of ______ parts. | 3 |
ATP part one is _______. | Adenine |
Adenine is amino acid, monomers and used to build ______. | Protein |
ATP part two is __________. | Ribose |
Ribose if the foundation or __________. | Sugar |
________ 3 groups is a molecule. It is a P with a circle around it. | Phosphate |
A _____________ ____________ is energy required by one process is supplied by another process. | Coupled reaction |
In a coupled reaction, energy-releasing _______ can drive an energy-requiring ________. | Reaction/reaction |
In coupled reaction, the reaction to ATP breakdown is usually energy __________. | Release |
ATP must couple with ________ before it can go to _______ to form ADP + P. | A&B/C&D |