Lipids are important to living things for all of the following reasons (whatever reasons you have in the choices left), except that they need to form cell membranes.
cannot breathe, is not a living organism, doesn't grow doesn't move
culture. The language and customs of a group of people make up their culture.
Answer:
Feedback inhibition may be defined as the biological mechanism that are mainly formed for the inhibition of the preformed enzymes. Two main types of regulation are positive regulation and negative regulation.
The feedback regulation shown by E.coli for the tryptophan biosynthesis is the negative inhibition. This means that the operon is being involved in switching off by bounding to the active form of the repressor protein. The positive regulation occurs when the regulatory protein interacts with the genome.