Please help answer these questions 1. the protein complexes responsible for oxid
ID: 68612 • Letter: P
Question
Please help answer these questions
1. the protein complexes responsible for oxidative phosphorylation are embedded in the?
a. outer mitochondrial membrane b. matrix space c. inner mitochondrial membrane d. cycosol
2. What word is used to describe a pathway that functions in both degradative and biosynthetic reactions?
a. catabolic b. anabolic c. metabolic d. amphibolic e. diabolic
3. which of the following substances serves as an immediate through which all cellular energy sources are interconvertible?
a. citrate b. pyruvate c. ATP d. glucose e. acetyl-CoA
4. Which of the following processes is inhibited by insulin?
a. glycogenolysis b. citric acid cycle c. glycolysis d. pyruvate synthesis e. glycogenesis
5. Which of the following terms means the formation and storage of triglycerides?
a. lipolysis b. lipogenesis c. biosynthesis d. gluconeogenesis e.lipoglyceresis
Explanation / Answer
1. The correct answer is inner mitochondrial membrane (Option c)
Explanation: Oxidative phosphorylation is a highly effcient metabolc pathway used by cells to produces ATP (energy). This is a type of redox reaction, carried out in the inner membrane of the mitochondria.
2. The correct answer is amphibolic (option d).
Explanation: Amphibolic is used to express the biochemical pathway that involves both catabolism and anabolism. The citric acid cycle is an appropriate example for amphibolic pathways. On the contrary, anabolism involves biosynthesis, catabolism and metabolism involves degradation, diabolic is a complete distinct term from biochemistry.
3. The correct answer is Acetyl Co-A (option e).
4. The correct answer is Glycogenolysis (option a).
Explanation: The major role of insulin is to remove the glucose from blood circulation either by liver or tissue uptake or by inducing the glucose metabolism. Glycogenolysis involves metabolism of glycogen to glucose, which consequantly raise the blood glucose level. Hence, this process is inhibited by insulin.
5. The correct answer is Lipogenesis (option b).
Explanation: lipogenesis is process which involves conversion of acetyl Co-A to fatty acids, which further converted into triglycerides. It also involves storage of triglycerides in liver.