(10)
Which of the following steps in the catalytic cycle of the F1 component of ATP synthase is the most energetically unfavorable?
Group of answer choices
Formation of ATP from ADP and Pi
Binding of Pi
Binding of ADP
Binding of ATP
Release of ATP
(11)
The reaction catalyzed by malate dehydrogenase (shown below) completes the citric acid cycle. The ΔG°’ for this reaction is equal to 29.7 kJ/mol.
L-malate + NAD+ ⇄ oxaloacetate + NADH + H+
Which of the following are factors that may contribute in favoring the formation of products?
Group of answer choices
High H+ concentration
Low concentration of NADH and high concentration of NAD+
High concentration of oxaloacetate
Low concentration of oxaloacetate
(b) and (d)
(12)
What is the most likely adaptation response of bacteria when the growth temperature is changed from near physiological (37°C) to cold (8°C)?
Group of answer choices
incorporation of saturated fatty acids in the membrane
incorporation of unsaturated fatty acids in the membrane
thermal compensation by upregulation of exergonic reactions
thermal compensation by downregulation of endergonic reactions
migration to warmer media
In: Biology
What factor does not affect the distribution of different isozymes?
Select one:
a. Different metabolic patterns in different organs.
b. Different locations and metabolic roles for isozymes in the same cell.
c. Different stages of development in embryonic or fetal tissues and in adult tissues.
d. Different catabolic abilities using commonly evolved amino acid sequences
e. Different responses of isozymes to allosteric regulation
In: Other
The terminal portion of an RNA transcript of a region of T4 phage DNA contains the sequence 5′-AAAUGAGGA-3′. The entire sequence encodes three different polypeptides. What amino acid(s) will terminate the three different polypeptides?
I get how you get a peptide with Lys and the stop codon. I don’t know how you get the other two peptides. Please, explain.
In: Biology
The following DNA sequence occurs in the nontemplate strand of a structural gene in a bacterium (the promoter sequence is located to the left but is not shown): 5’-GAATGTCAGAACTGCCATGCTTCATATGAATAGACCTCTAG-3’ Consider the ribonucleotide sequence of the mRNA molecule that is transcribed from this piece of DNA that you determined in the previous question. What is the amino acid sequence of the polypeptide encoded by this mRNA? You must show and explain all work/evidence to receive credit.
In: Biology
6. BSA has the following amino acid profile compared with the average of known vertebrate proteins:
|
AA |
BSA |
Average Protein |
|
Phe |
4.6% |
4.0% |
|
His |
2.7% |
2.9% |
|
Lys |
10.1% |
7.2% |
|
Arg |
3.9% |
4.2% |
|
Trp |
0.3% |
1.3% |
|
Tyr |
3.4% |
3.3% |
Based upon this data, is BSA a good standard to use in the Bradford assay? Explain your answer.
In: Biology
Describe how the first draft of the human genome was obtained and compare this with the next generation sequencing (NGS) technologies used to sequence human genomes. (Min 2 and a half pages.)
In: Biology
In: Accounting
In: Psychology
Illustrate and explain the Human Capital approach to education decisions. How does the Signalling approach fundamentally differ from the Human Capital approach? please ensure you illustrate
In: Economics
Some fish or reptiles can be larger than human infants. explain why the human requires a four-chamber heart (2 atria and 2 ventricles) 4 marks
In: Anatomy and Physiology