Cell Biology Answers

What absorbs photon

The most extensive component of the endomembrane system, in terms of membrane surface area, is the ...

Is food (carbohydrates, protien and fat) catabolized to produce atp inside or outside the cell?

It is recommended to eat at least two portions of oil rich fish per week. Fresh tuna is considered to be an oil-rich fish. Please explain whether canned or fresh tuna should be prefferred in the diet?

A new drug is developed which selectively cleaves covalent bonds between two sulfur atoms of non-adjacent amino acids in a polypeptide chain. Which level of protein structure in affected molecules would be most directly affected by the drug?

a. Secondary structure

b. Primary structure

c. Tertiary structure

d. Quaternary syructure

Please indicate the atoms involved in a polypeptide backbone?

Please explain allosteric regulation of a protein?

Protein structure is determined solely by a protein’s amino acid sequence. Should a genetically engineered protein in which the original order of all amino acids is reversed have the same structure as the original protein?

Which categories of amino acid would you expect to find on the surface of a soluble protein, and which would you expect to find in the interior? What distribution of amino acids would you expect to find in a protein embedded in a lipid bilayer?

What are the amphipathic molecules? Given an example to amphipathic molecules in cells?