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2.5 pts Question 27 During oxidative phosphorylation a very low concentration of protons is created in...
Question 2 3 pts During oxidative phosphorylation, what gets oxidized? NADH FADH2 NAD+ FAD CO2 H20...
Question 2 3 pts During oxidative phosphorylation, what gets oxidized? NADH FADH2 NAD+ FAD CO2 H20 protein complexes in the ETC 02 Question 3 1 pts Where would you find the ETC in a prokaryote? embedded in the plasma membrane embedded in the inner mitochondrial membrane embedded in the outer mitochondrial membrane in the mitochondrial matrix in the intermembrane space
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring...
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
Oxidative Phosphorylation Consider a reconstituted membrane system that mimics the structure of intact mitochondria in that...
Oxidative Phosphorylation Consider a reconstituted membrane system that mimics the structure of intact mitochondria in that the matrix and intermembrane space are completely intact. These membranes are formed with only Complex IV and Complex V (ATP synthase) and these components are in their normal orientation within the membrane. Electrons are provided into the system via soluble reduced Cytochrome C and O2 is used as an electron acceptor a. Would ATP Synthesis Occur? Explain. b. If only ATP synthase is inhibited,...
C. Considering Electron Transport: In LA3 Video 3, we are considering electron transport and oxidative phosphorylation....
C. Considering Electron Transport: In LA3 Video 3, we are considering electron transport and oxidative phosphorylation. Please answer the following multiple choice questions (0.5 pts each) and follow instructions for two final drawings (2 pts each). 1. The electrons involved in electron transport come from (A) glycolysis (B) the pyruvate dehydrogenase complex (C) the citric acid cycle (D) all three processes 2. When NADH and FADH2 transfer their electrons to the electron transport chain, they are (A) oxidized (B) epimerized...
Incorrect Question 12 0/1 pts Small quantities of ATP are made from-_in__ Answer 1: Answer 2:...
Incorrect Question 12 0/1 pts Small quantities of ATP are made from-_in__ Answer 1: Answer 2: Incorrect o Question 13 rtion 13 0/1 pts Which event takes place during oxidative phosphorylation? - Protons are pumped into the intermembrane space • NAD+ and FAD are reduced Water is consumed to drive the roatlans MacBook Air
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and...
In redox reactions Protons are transferred from one molecule to another One substance loses electrons and the other gains electrons A substance that loses electrons is reduced, while a substance e that gains electrons are oxidized B and c are both correct Which process in eukaryotic cells will proceed normally whether oxygen (O2) is present of not? Electron transport Glycolysis The citric acid cycle Oxidative phosphorylation Chemiosmosis How many carbon atoms are fed into the cirtic acid cycle as a...
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters...
1) Glucose enters human enterocytes (intestinal epithelial cells) against its concentration gradient. A Na+ ion enters the cell with each glucose molecule, and while the glucose transporter does not hydrolyze ATP, it depends on a pre-existing gradient of Na+ ions that is created by the Na+/K+ ATPase. This is an example of ____________. A. primary active uniport B. secondary active antiport C. primary active symport D. secondary active symport 2) Which statement is FALSE? A. Acetyl CoA is oxidized to...
O words Question 40 10 pts Most of the ATP from metabolism is formed during the...
O words Question 40 10 pts Most of the ATP from metabolism is formed during the Respiratory Chain or oxidative phosphorylation. • Follow the path of electrons and protons from NADH (or FADH2) through oxidative phosphorylation. Be sure to highlight the cytochromes, starting substrates, enzymes, and final product(s). (6 points) Cyanide is a competitive inhibitor of cytochrome coxidase. What does 'competitive inhibitor' mean? Describe an effect of cyanide exposure to oxidative phosphorylation. Explain the rationale behind treating cyanide poisoning with...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat...
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat diets are not necessarily the best for all humans? Individual humans have varying metabolisms and set points" When we eat less that - 20% of our calories from fat, we make fat from carbohydrates anyway We synthesize most of the cholesterol we use in our bodies regardless of diet Promoting low or no-fat diets in the past has caused many humans to over-consulte carbohydrates,...
Question 2 3 pts During oxidative phosphorylation, what gets oxidized? NADH FADH2 NAD+ FAD CO2 H20 protein complexes in the ETC 02 Question 3 1 pts Where would you find the ETC in a prokaryote? embedded in the plasma membrane embedded in the inner mitochondrial membrane embedded in the outer mitochondrial membrane in the mitochondrial matrix in the intermembrane space
Inhibitors of Oxidative Phosphorylation The following chemicals inhibit oxidative phosphorylation: Cyanide: Cyanide is a naturally occurring compound that binds to protein complex IV of the mitochondrial electron transport chain and prevents transfer of electrons from the protein. Metformin: At the cellular level, chemically synthesized metformin, a drug commonly prescribed for Type 2 diabetes, inhibits mitochondrial respiration by blocking complex I. Dinitrophenol: Dinitrophenol is a metabolic poison that can be sold legally as a pesticide. Although it is lethal to humans,...
C. Considering Electron Transport: In LA3 Video 3, we are considering electron transport and oxidative phosphorylation. Please answer the following multiple choice questions (0.5 pts each) and follow instructions for two final drawings (2 pts each). 1. The electrons involved in electron transport come from (A) glycolysis (B) the pyruvate dehydrogenase complex (C) the citric acid cycle (D) all three processes 2. When NADH and FADH2 transfer their electrons to the electron transport chain, they are (A) oxidized (B) epimerized...
Incorrect Question 12 0/1 pts Small quantities of ATP are made from-_in__ Answer 1: Answer 2: Incorrect o Question 13 rtion 13 0/1 pts Which event takes place during oxidative phosphorylation? - Protons are pumped into the intermembrane space • NAD+ and FAD are reduced Water is consumed to drive the roatlans MacBook Air
O words Question 40 10 pts Most of the ATP from metabolism is formed during the Respiratory Chain or oxidative phosphorylation. • Follow the path of electrons and protons from NADH (or FADH2) through oxidative phosphorylation. Be sure to highlight the cytochromes, starting substrates, enzymes, and final product(s). (6 points) Cyanide is a competitive inhibitor of cytochrome coxidase. What does 'competitive inhibitor' mean? Describe an effect of cyanide exposure to oxidative phosphorylation. Explain the rationale behind treating cyanide poisoning with...
QUESTION 1 Which of the following options lists the stages in cellular respiration in the correct order? A. glycolysis, oxidative phosphorylation, pyruvate oxidation, and the citric acid cycle B glycolysis, pyruvate oxidation, the citric acid cycle, and oxidative phosphorylation C. pyruvate oxidation, oxidative phosphorylation, glycolysis, and the citric acid cycle D. the citric acid cycle, oxidative phosphorylation, pyruvate oxidation, and glycolysis QUESTION 2 When a glucose molecule loses a hydrogen atom as the result of an oxidation-reduction reaction, the glucose...
Le past years Question 42 O pts Extra Credit. Which of the following explains why low-fat diets are not necessarily the best for all humans? Individual humans have varying metabolisms and set points" When we eat less that - 20% of our calories from fat, we make fat from carbohydrates anyway We synthesize most of the cholesterol we use in our bodies regardless of diet Promoting low or no-fat diets in the past has caused many humans to over-consulte carbohydrates,...
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