AP BIOLOGY

Detailed explanation-1: -A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Detailed explanation-2: -Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth).

Detailed explanation-3: -The mitotic phase (M) includes both mitosis and cytokinesis. This is when the nucleus and then the cytoplasm divide. The other three phases (G1, S, and G2) are generally grouped together as interphase. During interphase, the cell grows, performs routine life processes, and prepares to divide.

Detailed explanation-4: -The cell grows at a steady rate throughout interphase, with most dividing cells doubling in size between one mitosis and the next. In contrast, DNA is synthesized during only a portion of interphase.

Detailed explanation-5: -Gap 1. After cells have finished dividing their chromosomes, and cytokinesis has divided the cell membrane, the two new cells enter the first stage of interphase, Gap 1 or G1. During this stage, the cell performs its normal functions, and grows in size. The cell replicates organelles as necessary.