Pick any organism (other than humans and domesticated animals)
that you are familiar with. It may be a plant, insect, animal or
bacteria. Carefully think about the organism’s environment. Think
about the organism’s life cycle and day to day life. Write a story
about your organism’s life. What kind of competition does your
organism experience? How is your organism uniquely adapted to
compete? What other ways could your organism adapt to become more
fit?
You must include any five of the following concepts in your
story
In: Biology
How does electrochemical biosensor work at a molecular level? How much sample does an electrochemical biosensor need? What kind of electrode can be used ( does not need to be biocompatible)? If I want to design a wireless biosensor, what should the biosensor include so that the signal will transfer to phone app and computer?
In: Biology
In: Biology
which is a correct example of energy coupling using ATP? Please choose the correct answer
A. The electron transport chain uses ATP to pump protons against their electrochemical gradient.
B. Hydrolyzing ATP to drive an anabolic reaction.
C. Substrate level phosphorylation makes ATP.
D. In photosynthesis, light energy is trapped into an ATP molecule.
In: Biology
In: Biology
Identify a disease that disrupts cellular respiration. How is caused, what are the symptoms, and how is it treated. limit to 1 paragraph
In: Biology
In: Biology
In glycolysis two ATPs are generated at two different steps in stage two. The creation of ATP from ADP has a free energy change of +30.5 kJ/mol. Explain how this energy barrier is overcome for the metabolic process to proceed through these two steps?
In: Biology
In: Biology
(history) The U.S. in the Caribbean Please answer the following short-answer questions. Your answers should be paragraph-length (between 100 to 200 words)
1) How did the United States obtain control of the Panama Canal? What were the characteristics of the construction of the Canal under the U.S., when did the Canal open and what is its significance?
2) How would you characterize the relationship between the U.S. and so-called “Banana Republics”?
In: Biology
In: Biology
16. Why does FADH2 provide energy for 1.5 ATP
molecules in the ETC, whereas NADH provides energy for 2.5 ATP
molecules? ( Show calculations. )
17. How does each of the following regulate the CAC:
a/ high levels of NADH
b/ high levels of ATP
c/ high levels of ADP
d/ low levels of NADH
18. Where is ATP synthase for oxidative phosphorylation located in
the cell?
19. Why do H+ leave the intermembrane space and return to the
matrix of the mitochondrion?
20. Why do the enzyme complexes that pump H+ extend across the
mitochondrial membrane from the matrix to the intermembrane
space?
In: Biology
Stubble bristles (Sb) is dominant to wildtype bristles (Sb+) in Drosophila melanogaster. In a population where there are 137 flies with wildtype bristles and 836 flies with stubble bristles, what are the allele frequencies for the Sb and Sb+ alleles (assuming the population is in Hardy-Weinberg equilibrium)? Please calculated your answers to 3 decimal places.
f(Sb)=
f(Sb+)=
If the population is in Hardy-Weinberg equilibrium, what proportion of the population would you expect to be heterozygous?
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Discuss the Ardipithecus ramidus fossil and its implications for understanding human evolution in 300 words
In: Biology
Using affinity chromatography, you have attempted to purify an enzyme as a fusion protein that was expressed in E. coli. SDS-PAGE analysis shows that the eluted sample contains the enzyme and it appears to be very pure.
Briefly describe, in general terms, a method you could use to determine the concentration of the enzyme in the eluted sample. Describe the advantages and disadvantages of your approach.
In: Biology