Question 1 1 pts Which of the following is true regarding an allosteric enzyme?

Question

Question 1 1 pts Which of the following is true regarding an allosteric enzyme? All the above To act as an feedback inhibitor To act as a positive regulator It does not obey the Michaelis-Menten kinetics None of the above DQuestion 2 1 pts What can be said about feedback loops? O A system CANNOT have feedback inhibition AND positive regulation working together in one system Feedback inhibition refers to prevention of enzymes from acting OPositive regulation refers to stimulated enzymatic activity all of the above None of the above

Explanation / Answer

answer1:

it does not obey the michaelis menten kinetics.

answer 2:

all of the above, feedback loop is a biological process where the output of a system amplifies the system (positive feedback) or inhibits the system (negative feedback).

answer 3:

all of the above. kinases are responsible for attaching phosphate group. and addition and removal of this group regulates cell signaling.

answer 4:

all of the above, The four chains are held together by noncovalent interactions. in hemoglobin oxygen binding is a reversible.

answer 5: responsible for catalyzing reactions including DNA and RNA

answer 6. the sequence of protein is always read from C terminus reading from right to left.

answer 7: valine, because it is a non polar amino acid

answer 8: the large number of diverse functional group both contribute to protein structure and account for diversity of protein functions.

answer 9: the peptide bond is formed when the alpha carbon of one amino acid shares the electrons with nitrogen atom of different amino acid.

answer 10: feedback inhibition

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