Homework Answers
In F0 , H+ enters subunit c .
F0F1 complex of ATP synthase has two multimeric components F0 and F1 . F1 is the water soluble complex . F0 is the membrane embedded portion of ATP synthase . Its main function is movement of protons. It contains 3subunits of proteins a,b and c. Two proton half channels lie in between c-ing and a subunit. Half channel I allow protons to move from endoplasmic space and to bind with aspartate-61 of the c-subunit . HalfChannel II allow protons to dissociate from aspartate-61 and move into cytosolic space. This movement of proton leads to rotation of c-ring.
What is the mechanism by which stimulation of adenylate cyclase by the alpha subunit of stimulatory...
What is the mechanism by which stimulation of adenylate cyclase by the alpha subunit of stimulatory G-protein (Gas) is terminated? binding of the beta and gamma subunits of Gs to the Gas subunit conversion of GTP to CGMP by adenylate cyclase O phosphorylation of the Gas subunit exchange of GTP for GDP by the Gas subunit hydrolysis of GTP by the Gas subunit
The function of the beta subunit is to prevent DNA polymerase III from dissociating from the...
The function of the beta subunit is to prevent DNA polymerase III from dissociating from the template DNA strand while still allowing the polymerase to slide along DNA as replication progresses. Given this function, the alpha helices in the beta subunit are The function of the beta subunit is to prevent DNA polymerase III from dissociating from the template DNA strand while still allowing the polymerase to slide along DNA as replication progresses. Given this function, the alpha helices in...
Which subunit of RNA polymerase is absolutely required to initiate transcription? O O OOO Answers A-D...
Which subunit of RNA polymerase is absolutely required to initiate transcription? O O OOO Answers A-D A Alpha B Sigma c Omega D Beta 8 OF 12 QUESTIONS VERSION 3.8.1 Previous Next
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme...
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group 1. d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c)...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
Identify the monosaccharides: Choices are: alpha or beta - d - galactose alpha or beta -...
Identify the monosaccharides:
Choices are:
alpha or beta - d - galactose
alpha or beta - d - glucose
alpha or beta - d - xylose
alpha or beta d - arabinose
Identify the monosaccharides. CH2OH o ОН "о он ОН ОН ОН B-D-glucose B-D-glucose C. ОН CH2OH —о. WOH ОН ОН OH ОН none of the above a-D-galactose
Oxidative phosphorylation refers to O the electron transport chain coupled to glycolysis O the citric acid...
Oxidative phosphorylation refers to O the electron transport chain coupled to glycolysis O the citric acid cycle coupled to ATP synthesis O beta-oxidation coupled to ATP synthesis O the electron transport chain coupled to ATP synthesis QUESTION 8 Which ATP synthase subunit binds protons from the intermembrane space? OCO O Beta Alpha O Gamma QUESTION 9 Which ATP synthase subunit catalyzes the phosphorylation of ADP? O Alpha Beta O Gamma O C10
The release of ATP by the beta subunit of the F1F0 ATP Synthase is most directly...
The release of ATP by the beta subunit of the F1F0 ATP Synthase is most directly dependent on: A) The flow of protons from the intermembrane space to the matrix B) The rotation of the c-ring in the membrane C) The passage of electrons along the electron transport chain D) A conformational change in the beta subunit E) None of the above
Beta-lactams target... a. Protein synthesis (50S subunit) b. RNA synthesis c. Protein synthesis (30S subunit) d....
Beta-lactams target... a. Protein synthesis (50S subunit) b. RNA synthesis c. Protein synthesis (30S subunit) d. Cell wall synthesis
Three of the alpha helices are labeled by a numbered bracket. Which numbered helix. Would be...
Three of the alpha helices are labeled by a numbered bracket.
Which numbered helix. Would be designated as the "A helix" by the
common naming system? (Image 1)
Click on the segment that is designated as the FG segment,
also called the FG bend, in the hemoglobin beta subunit (Image
2).
Click on the approximate location of residue HC3 in the
hemoglobin Beta subunit (Image 3).
The image shows the structure of the β subunit of hemoglobin including the heme...
What is the mechanism by which stimulation of adenylate cyclase by the alpha subunit of stimulatory G-protein (Gas) is terminated? binding of the beta and gamma subunits of Gs to the Gas subunit conversion of GTP to CGMP by adenylate cyclase O phosphorylation of the Gas subunit exchange of GTP for GDP by the Gas subunit hydrolysis of GTP by the Gas subunit
Which subunit of RNA polymerase is absolutely required to initiate transcription? O O OOO Answers A-D A Alpha B Sigma c Omega D Beta 8 OF 12 QUESTIONS VERSION 3.8.1 Previous Next
Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group 1. d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
1. Which of these is not found in myoglobin? A) alpha helix b) beta sheet c) heme group d) globular folding pattern 2. Which statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin...
Identify the monosaccharides:
Choices are:
alpha or beta - d - galactose
alpha or beta - d - glucose
alpha or beta - d - xylose
alpha or beta d - arabinose
Identify the monosaccharides. CH2OH o ОН "о он ОН ОН ОН B-D-glucose B-D-glucose C. ОН CH2OH —о. WOH ОН ОН OH ОН none of the above a-D-galactose
Oxidative phosphorylation refers to O the electron transport chain coupled to glycolysis O the citric acid cycle coupled to ATP synthesis O beta-oxidation coupled to ATP synthesis O the electron transport chain coupled to ATP synthesis QUESTION 8 Which ATP synthase subunit binds protons from the intermembrane space? OCO O Beta Alpha O Gamma QUESTION 9 Which ATP synthase subunit catalyzes the phosphorylation of ADP? O Alpha Beta O Gamma O C10
Three of the alpha helices are labeled by a numbered bracket.
Which numbered helix. Would be designated as the "A helix" by the
common naming system? (Image 1)
Click on the segment that is designated as the FG segment,
also called the FG bend, in the hemoglobin beta subunit (Image
2).
Click on the approximate location of residue HC3 in the
hemoglobin Beta subunit (Image 3).
The image shows the structure of the β subunit of hemoglobin including the heme...
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