Short answer question: answer completely in the space provided. Do not write in the margins. 1....
Short answer question: answer completely in the space provided. Do not write in the margins.
1. (4 pts) Draw a diagram that shows formation of the sodium gradient using ATP coupled to active transport of glucose using the sodium gradient. Clearly label the sides of the membrane and transporter(s) used.
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Short answer question: answer completely in the space
provided. Do not write in the margins.
1....
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I,...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I, II, or III) that represent various types of transport across a biological membrane with the statements designated A-D: 1. Water diffusion through the lipid bilayer of the biomembrane. II. Glucose transport via the glucose transporter in the plasma membrane. III. Pumping of protons across the lysosome membrane by a proton pump similar to the ATP-synthase complex. Write down your answers in the blank space...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Instructions for short answer questions/calculations: Provide your answer in the space provided. i you require additional...
Instructions for short answer questions/calculations: Provide your answer in the space provided. i you require additional space, use the last page and clearly indicate the question number and part. 1. Consider the following two amino acids: AAR) a. Draw the condensation reaction that results in the formation of the dipeptide AAR1 AAR2. (5 po The peptide bond linking amino acids is rigid and planar. Provide a structural explanation for the rigid and planar nature of the peptide bond. (Hint: You...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED 15 marks] Each carbon in ethenc...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED 15 marks] Each carbon in ethenc (CH) is hybridised. a. Draw the Lewis diagram for ethene and indicate the hybridisation state for the carbons. [2 marks] b. Draw the orbital diagram for the hybridised carbons in ethene, clearly showing the hybrid carbon orbitals, as well as the electrons that they hold. [3 marks] For reference, the ground state orbitals for an unhybridised carbon have been included on the left. Hint:...
PART A Correctly order the steps 1-8 as they occur during the transport of glucose via...
PART A
Correctly order the steps 1-8 as they occur during the transport
of glucose via the phosphotransferase system (PTS):
HPr donates the phosphate group to enzyme IIA (EIIA);
phosphoenolpyruvate is produced as an intermediate of glycolysis;
EI donates the phosphate group to a histidine-rich protein (HPr);
as it enters the cell glucose is phosphorylated by EIIB;
phosphoenolpyruvate donates its high-energy phosphate group to
enzyme I (EI); EIIA passes its phosphate group to Enzyme IIB
(EIIB); glucose is transported across...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED (5 marks Each carbon in ethene...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED (5 marks Each carbon in ethene (C2H4) is hybridised. a. Draw the Lewis diagram for ethene and indicate the hybridisation state for the carbons. [2 marks] b. Draw the orbital diagram for the hybridised carbons in ethene, clearly showing the hybrid carbon orbitals, as well as the electrons that they hold. [3 marks) For reference, the ground state orbitals for an unhybridised carbon have been included on the left. Hint:...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a scientist distinguish Staphylococcus aureus from Staphylococcus epidermis on mannitol salu! agar (MSA)? 15. How can a scientist distinguish Enterobacter aerogenes from Escherichia coli on eosin methylene blue agar (EMB)?
Part II. For each of the following questions, write the answer in the space provided. 1....
Part II. For each of the following questions, write the answer in the space provided. 1. Draw a reasonable mechanism for each of the following reactions. (4x4 = 16 pts) MeOH HO LOH [H] OH - H20 NO2 HNO3 H2SO4 NO, ich Hoo You Hoh
Short Answer For questions 43-x write your answers in the space provided. Be sure to read...
Short Answer For questions 43-x write your answers in the space provided. Be sure to read each question carefully as some have multiple parts. Question 43) On figure 1, label the supply and demand curves. Question 44) On figure 1, box in and label the area which corresponds to producer surplus. Box in and label the area which corresponds to consumer surplus. Figure 1 P P* Q* Page 10 Question 45) Suppose that figure 1 shows the supply and demand...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
Question 18 (6 points, 1 point for each correct answer): Match the following processes (designated I, II, or III) that represent various types of transport across a biological membrane with the statements designated A-D: 1. Water diffusion through the lipid bilayer of the biomembrane. II. Glucose transport via the glucose transporter in the plasma membrane. III. Pumping of protons across the lysosome membrane by a proton pump similar to the ATP-synthase complex. Write down your answers in the blank space...
Instructions for short answer questions/calculations: Provide your answer in the space provided. i you require additional space, use the last page and clearly indicate the question number and part. 1. Consider the following two amino acids: AAR) a. Draw the condensation reaction that results in the formation of the dipeptide AAR1 AAR2. (5 po The peptide bond linking amino acids is rigid and planar. Provide a structural explanation for the rigid and planar nature of the peptide bond. (Hint: You...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED 15 marks] Each carbon in ethenc (CH) is hybridised. a. Draw the Lewis diagram for ethene and indicate the hybridisation state for the carbons. [2 marks] b. Draw the orbital diagram for the hybridised carbons in ethene, clearly showing the hybrid carbon orbitals, as well as the electrons that they hold. [3 marks] For reference, the ground state orbitals for an unhybridised carbon have been included on the left. Hint:...
PART A
Correctly order the steps 1-8 as they occur during the transport
of glucose via the phosphotransferase system (PTS):
HPr donates the phosphate group to enzyme IIA (EIIA);
phosphoenolpyruvate is produced as an intermediate of glycolysis;
EI donates the phosphate group to a histidine-rich protein (HPr);
as it enters the cell glucose is phosphorylated by EIIB;
phosphoenolpyruvate donates its high-energy phosphate group to
enzyme I (EI); EIIA passes its phosphate group to Enzyme IIB
(EIIB); glucose is transported across...
QUESTION 52 - WRITE YOUR ANSWER IN THE SPACE PROVIDED (5 marks Each carbon in ethene (C2H4) is hybridised. a. Draw the Lewis diagram for ethene and indicate the hybridisation state for the carbons. [2 marks] b. Draw the orbital diagram for the hybridised carbons in ethene, clearly showing the hybrid carbon orbitals, as well as the electrons that they hold. [3 marks) For reference, the ground state orbitals for an unhybridised carbon have been included on the left. Hint:...
Short answer. Write your answer in the space provided. (1 point each) 14. How can a scientist distinguish Staphylococcus aureus from Staphylococcus epidermis on mannitol salu! agar (MSA)? 15. How can a scientist distinguish Enterobacter aerogenes from Escherichia coli on eosin methylene blue agar (EMB)?
Part II. For each of the following questions, write the answer in the space provided. 1. Draw a reasonable mechanism for each of the following reactions. (4x4 = 16 pts) MeOH HO LOH [H] OH - H20 NO2 HNO3 H2SO4 NO, ich Hoo You Hoh
Short Answer For questions 43-x write your answers in the space provided. Be sure to read each question carefully as some have multiple parts. Question 43) On figure 1, label the supply and demand curves. Question 44) On figure 1, box in and label the area which corresponds to producer surplus. Box in and label the area which corresponds to consumer surplus. Figure 1 P P* Q* Page 10 Question 45) Suppose that figure 1 shows the supply and demand...
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