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Which metabolic pathway is common to both cellular respiration and fermentation?
The glycolytic pathway is common to both fermentation and cellular respiration. During the course of the metabolic pathway, glucose is broken down to pyruvate. In the presence of oxygen, the pyruvate molecule becomes involved in the TCA cycle. In the absence of oxygen however, fermentation occures. The process is brought about by an enzyme called alcohol dehydrogenase.
Cell structure that produces ATP energy molecules?
Some ATP is produced by the glycolytic pathway which is located in the cytoplasm. Most is synthesized by the protein ATP synthase, which is found in the mitochondrion.
Is it true that PEP is a feedback inhibitor of Phosphofructokinase?
No, it is not true. PEP, or phosphoenolpyruvate, is actually a substrate for phosphofructokinase (PFK), a key enzyme in glycolysis. PEP is converted to fructose-1,6-bisphosphate by PFK, which is an important step in the glycolytic pathway.
Which of the following would not be usable by the mitochondria in absence of glycolytic enzymes?
Lactate would not be usable by the mitochondria in the absence of glycolytic enzymes. Glycolytic enzymes are necessary to convert glucose into pyruvate, which can then enter the mitochondria for further energy production. Without these enzymes, lactate would accumulate and cannot be metabolized by the mitochondria.
Which fibers are primarily responsible for producing lactic acid?
Type IIB fast glycolytic fibers
What pathway is phosphofructokinase involved in?
Glycolytic and TCA cycle
Which metabolic pathway is common to both cellular respiration and fermentation?
The glycolytic pathway is common to both fermentation and cellular respiration. During the course of the metabolic pathway, glucose is broken down to pyruvate. In the presence of oxygen, the pyruvate molecule becomes involved in the TCA cycle. In the absence of oxygen however, fermentation occures. The process is brought about by an enzyme called alcohol dehydrogenase.
The first forms of life that produced ATP probably used pathways similar to what?
ATP/CP Pathway, Glycolytic Pathway, Oxidative Pathway
How is lactose catabolized via the glycolytic pathway?
Lactose is metabolized by the enzyme beta-galactosidase giving one molecule of galactose and one molecule of glucose.
Cell structure that produces ATP energy molecules?
Some ATP is produced by the glycolytic pathway which is located in the cytoplasm. Most is synthesized by the protein ATP synthase, which is found in the mitochondrion.
How long does the nonoxidative energy system typically provide energy?
10-120 seconds
Is it true that PEP is a feedback inhibitor of Phosphofructokinase?
No, it is not true. PEP, or phosphoenolpyruvate, is actually a substrate for phosphofructokinase (PFK), a key enzyme in glycolysis. PEP is converted to fructose-1,6-bisphosphate by PFK, which is an important step in the glycolytic pathway.
What are the types of any muscle fiber?
Slow oxidative fibers Fast oxidative-glycolytic fibers Fast glycolytic fibers
How long does the nonoxidative energy system typically provides energy?
10-120 seconds
Is Pyruvate is a product of glycolysis?
Yes. Pyruvate is a product of glycolysis. This molecule contains three carbons. For every molecule of glucose that enters the glycolytic pathway, two molecules of pyruvate are formed
What is Glycolytic action?
it refers to the breakdown of glucose
Which of the following would not be usable by the mitochondria in absence of glycolytic enzymes?
Lactate would not be usable by the mitochondria in the absence of glycolytic enzymes. Glycolytic enzymes are necessary to convert glucose into pyruvate, which can then enter the mitochondria for further energy production. Without these enzymes, lactate would accumulate and cannot be metabolized by the mitochondria.
