Bio-Cell Cycle Study Guide

Question 1

What are the stages of Mitosis (in order)?

Answer 1

PMAT–> Prophase, Metaphase, Anaphase and Telophase (cytokinesis)

Question 2

What happens in Prophase?

Answer 2

Chromosomes condense and (the little T shaped…) centrosomes move to opposite sides of the cell. Then spindle fibers from centrioles attach to the middle of chromosomes (kinetochores)

Question 3

What happens in Metaphase?

Answer 3

Individual chromosomes are spread out within the cell. The nucleus dissolves and the cell’s chromosomes condense and move together, aligning in the center of the cell.

Question 4

What happens in Anaphase?

Answer 4

The sister chromatids separate from each other and are pulled towards opposite ends of the cell by the centrosomes.

Question 5

What happens in Telophase?

Answer 5

During telophase, chromosomes get to opposite ends of the cell, the spindles go away, and a nucleus starts to reform around the chromosomes.

Question 6

What happens in Cytokinesis?

Answer 6

During Cytokinesis final separation occurs. The cells cytoplasm splits, forming two daughter cells.

Question 7

What’s interphase and what happens in it?

Answer 7

Interphase is the section before mitosis where the cell gets ready (but no visible changes are evident). It’s G1, S & G2.

Question 8

Why do cells divide?

Answer 8

-To replace old/damaged cells
-To help the organism grow
-To prevent single cells from getting too large