Download Mitosis Questions and Answers

Biology
HS/Science
Unit: 06 Lesson: 02
The Cell Cycle KEY
Objective: Research and gain understanding about the phases of the cell cycle.
Part I - Instructions: View the animations assigned by your teacher. Then fill in the chart describing
each phase of the cell cycle. You may also use a textbook or other print resources provided by your
teacher.
Phase of Cell Cycle
Description
Interphase
During interphase, cells rest and copy their DNA in preparation for
cell division. Cells spend most of their time in interphase.
Interphase has 3 (some say 4) parts: G1, S, G2 (and some say G0).
G1
Called Gap 1 or First Growth phase; cell grows and maintains
normal functions. Cells make RNA and proteins during this phase.
S (Synthesis)
DNA replication occurs during the S phase which results in two
exact copies of the chromosomes.
G2
This is Gap 2 or Second Growth phase. The cell continues to grow
and produce proteins; the cell gets ready for cell division.
Mitosis
This phase has four stages (prophase, metaphase, anaphase and
telophase). The nucleus divides during this phase; the cell stops
growing and making proteins so that all of its energy can be
focused on dividing.
Cytokinesis
In this phase, the cytoplasm and organelles divide into two identical
cells.
Part II - Additional Questions:
1. In which phase does nuclear division happen?
Nuclear division happens during mitosis.
2. Why is the cell cycle important to organisms?
It allows for the organism to grow, heal, and repair tissues.
©2012, TESCCC
05/07/13
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