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jolli1 [7]
3 years ago
15

Can someone please help me with this?

Biology
1 answer:
mihalych1998 [28]3 years ago
5 0
1. "What makes certain people faster than others?"

2. Sally was concerned after she noticed her friend was faster than her.

3. The height of Sally's classmates

4. I would say quantitative because it is the time in numbers it took each person to run the mile.

5. The heights of her classmates, how much they excersize, etc.

6. Everyone ran one mile, all of the classmates are girls, etc.

7. There is no control group.

8. There was only one trial in this experiment.
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Incorporation of _____, a neutral antibiotic, into a polyvinyl chloride membrane allows for the manufacture of an ion-selective
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The incorporation of valinomycin, a neutral antibiotic, into a polyvinyl chloride membrane allows for the manufacture of an ion-selective electrode that is highly selective for potassium.

<h3>How Valinomycin Ionophores Enter and Transport K+ across Model Lipid Bilayer Membranes?</h3>

  • A biomimetic lipid membrane attached to the surface of the gold electrode contained the cyclic peptide valinomycin.
  • The ionophore characteristics of the peptide were investigated using electrochemical impedance spectroscopy, and the conformation and orientation of the antibiotic valinomycin within the membrane were identified using polarization modulation infrared reflection absorption spectroscopy.
  • By forming a complex with potassium ions and an ion pair with a counter anion, valinomycin transports ions across the membrane, and the combination of these two techniques revealed novel information about the ionophore mechanism.
  • The ion pair is located inside the hydrophobic portion of the membrane and makes a little angle of around 22° with the surface normal.

To learn more about Valinomycin refer to:

brainly.com/question/13977514

#SPJ4

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