Homework Answers
The Mitochondrial Membrane is most likely to be damaged by ROS (Reactive Oxygen Species) production since Oxidative Phosphorylation takes place inside Mitochondria. The ROS molecules released as wasteful accidental products of Oxidative Phosphorylation are highly reactive and are present in the highest concentrations in the mitochondria. Therefore, the mitochondrial membrane is most susceptible to damage by Oxidative Phosphorylation.
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DU HYP O PUNJI 4. Oxidation of lipids in the membrane is one way in which...
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...
Which of the following is NOT a property of membrane lipids Select one: a. The two...
Which of the following is NOT a property of membrane lipids Select one: a. The two leaflets of the plasma membrane have different lipid composition b. Most fatty acids attached to lipids have a length of 16 to 22 carbon atoms c. The plasma membrane is composed of a mixture of glycerolipids, sphingolipids and cholesterol. d. Phospholipids prefer to form micelles e. Cholesterol increases the order of fatty acid side chains
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...
Question 1 1 pts Which of the following is the most common property of membrane lipids?...
Question 1 1 pts Which of the following is the most common property of membrane lipids? O a. They contain two hydrophobic tails. ob. They are sphingolipids. O c. They are amphipathic. O d. They are phospholipids. Question 2 1 pts Which of the following is most likely to contain a region of 20 hydrophobic amino acids? a. A peripheral membrane protein. b. A transmembrane protein. O c. A GPI-anchored protein. O d. A cytosolic protein. Question 3 1 pts...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
4. For each of the following sentences, fill in the blanks with the best word or...
4. For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase can be used more than once. (2 point each; 34 points total) ADP lysosome oxidation phosphorylation NAD pyruvate plasma membrane oxidative phosphorylation acetyl CoA cytosol carbon dioxide nucleus NADH sucrose ubiquitination GTP electrons FADH2 reduction B-sheets matrix ATP FAD kinase vacuole H* mitochondria NADH inner membrane...
Q2. The release of ATP by the beta subunit is most directly dependent on: Select ONE...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism and Cellular Respiration Refer to Figure below as a guide to answer the folloaing questions Acetyt CoA Oxaloacetic acid CoA NADH Citric acid NAD Isocitric acid Malic acid Fumaric acid NAD co NADH -FADH FAD+ a-Ketoglutaric acid Succinic acid CO2NAD ATP Succinyl CoA ADP P NADH Figure above. Starting with citric acid and ending with oxaloacetic acid, how many ATP 6) Refer to molecules...
Question 24 Which of the following categories of membrane proteins is most likely to have restricted...
Question 24 Which of the following categories of membrane proteins is most likely to have restricted lateral mobility in a membrane? enzyme transporter O anchor O receptor all are restricted Question 5 New membrane synthesis occurs by spontaneous aggregation of free phospholipids into a new bilayer incorporation of phospholipids into one face of a preexisting membrane and their specific redistribution by enzymes like flippases incorporation of phospholipids into both faces of a preexisting membrane at the same time formation of...
Question 4 (5 points) Which is more common in membrane lipids.... lateral diffusion of flip-flop diffusion?...
Question 4 (5 points) Which is more common in membrane lipids.... lateral diffusion of flip-flop diffusion? Question 5 (5 points) Shown below are linoelaidic acid and stearic acid... which one has the higher melting temperature? OH
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...
Question 1 1 pts Which of the following is the most common property of membrane lipids? O a. They contain two hydrophobic tails. ob. They are sphingolipids. O c. They are amphipathic. O d. They are phospholipids. Question 2 1 pts Which of the following is most likely to contain a region of 20 hydrophobic amino acids? a. A peripheral membrane protein. b. A transmembrane protein. O c. A GPI-anchored protein. O d. A cytosolic protein. Question 3 1 pts...
27) Which one of the following best describes the electron transport chain? A) Electrons are passed from one carrier to another releasing a little energy at each B) Hydrogen atoms are added to CO2 to make an energy-rich compound. C) Electrons are pumped across a membrane by active transport. D) Glucose is broken down to a three-carbon compound 28) After completion of the citric acid cycle, most of the usable energy from the one molecule is in the form of...
4. For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase can be used more than once. (2 point each; 34 points total) ADP lysosome oxidation phosphorylation NAD pyruvate plasma membrane oxidative phosphorylation acetyl CoA cytosol carbon dioxide nucleus NADH sucrose ubiquitination GTP electrons FADH2 reduction B-sheets matrix ATP FAD kinase vacuole H* mitochondria NADH inner membrane...
Q2.
The release of ATP by the beta subunit is most directly
dependent on:
Select ONE option:
1. the flow of protons from the intermembrane space to the
matrix.
2. the rotation of the c-ring in the membrane.
3. the passage of electrons along the electron transport
chain.
4. a conformational change in the beta subunit.
Q3.
What defines the direction of rotation of the c-ring in the F0
complex?
(Select ALL that apply.)
1. Amino acids side chains in...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Metabolism and Cellular Respiration Refer to Figure below as a guide to answer the folloaing questions Acetyt CoA Oxaloacetic acid CoA NADH Citric acid NAD Isocitric acid Malic acid Fumaric acid NAD co NADH -FADH FAD+ a-Ketoglutaric acid Succinic acid CO2NAD ATP Succinyl CoA ADP P NADH Figure above. Starting with citric acid and ending with oxaloacetic acid, how many ATP 6) Refer to molecules...
Question 24 Which of the following categories of membrane proteins is most likely to have restricted lateral mobility in a membrane? enzyme transporter O anchor O receptor all are restricted Question 5 New membrane synthesis occurs by spontaneous aggregation of free phospholipids into a new bilayer incorporation of phospholipids into one face of a preexisting membrane and their specific redistribution by enzymes like flippases incorporation of phospholipids into both faces of a preexisting membrane at the same time formation of...
Question 4 (5 points) Which is more common in membrane lipids.... lateral diffusion of flip-flop diffusion? Question 5 (5 points) Shown below are linoelaidic acid and stearic acid... which one has the higher melting temperature? OH
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