5. Once the cell passes the checkpoint, it will normally complete the cell cycle

Question

5. Once the cell passes the checkpoint, it will normally complete the cell cycle. For this reason, this check is usually considered the most important. a. Go b. G c. S d. G2 e. M 6. In order to divide, most mammalian cells have to be attached to a substratum through the extracellular matrix known as a. transformation b. anchorage dependence c. interkinesis d. independent assortment e. density-dependent inhibition 7. In some cases, enzymes cannot catalyze a substrate because an inhibitor has bound to the active site. TI known as: a. noncompetitive inhibition b. feedback inhibition c. allosteric regulation d. competitive inhibition e. substrate-level phosphorylation

Explanation / Answer

Ans 5- once the cell passes the G1 checkpoint,it will normally complete the cell cycle,hence it is considered as the most important checkpoint . Once the cell receives the green signal at G1 check point ,it will automatically complete other cycles like G1,G2,S and M phases. However G0 is the phase of nondividing state .

Ans 6-In order to divide ,most mammalian cells have to be attached to the substratum through the extra cellular matrix is known as Anchorage dependence.

Ans 7:- Due to feedback inhibition enzyme cannot catalyze a substrate because an inhibitor has bound to the active site.

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