AP BIOLOGY

Detailed explanation-1: -Interphase was formerly called the resting phase. However, interphase does not describe a cell that is merely resting; rather, the cell is living and preparing for later cell division, so the name was changed.

Detailed explanation-2: -Interphase is also considered to be the living phase of the cell, in which the cell obtains nutrients, grows, reads its DNA, and conducts other “normal” cell functions. The majority of eukaryotic cells spend most of their time in interphase. This phase was formerly called as the resting phase.

Detailed explanation-3: -Previously interphase was called resting stage because there is no visible activity related to cell division in this stage. Later studies proved that the interphase of a cell is metabolically quite active. Interphase consists of 3 subphases (G1, G2 and S). Synthesis of DNA occurs in S-phase.

Detailed explanation-4: -G0 phase: resting state, or gap phase. Many cells spend most of their time in this phase either at rest or performing assigned duties. Generally resistant to chemotherapy. • G1 phase: gap 1 phase, or interphase.