4.6

Question 1

What will we learn?
1. What is the role of interphase?
2. What occurs during interphase?
3. What is the role of mitosis?
4. What occurs during mitosis?
5. What is the role of cytokinesis?

Answer 1

1. The role of interphase is to allow newly divided cells opportunity to grow, maintain normal cell function, and prepare for division.
2. During interphase cells grow, replicate DNA, and prepare for division.
3. Mitosis plays a role in growth, tissue repair, and asexual reproduction.
4. During mitosis genetic information is transferred.
5. Cytokinesis ensures equal distribution of cytoplasm to daughter cells.

Question 2

What is the cell cycle?

Answer 2

It’s a highly regulated series of events for the growth and repair of cells

Question 3

What are the two highly regulated processes of the cell cycle?

Answer 3

• Interphase
  Growth and preparation
• M-Phase
  Mitosis - Division of the nucleus
  Cytokinesis - Division of the cytoplasm

Question 4

What makes up interphase?

Answer 4

• Interphase involves three sequential stages
  G1 - cell growth
  S - copies of DNA are made
  G2 - the cytoplasmic components are doubled in preparation for division

Question 5

What does mitosis play a role in?

Answer 5

Growth, tissue repair, and asexual reproduction

Question 6

What does mitosis ensure the transfer of in terms of genetics?

Answer 6

The transfer of a complete genome from a parent cell to two genetically identical daughter cells

Question 7

What are the two processes that alternate in the cell cycle?

Answer 7

Interphase and mitosis

Question 8

What is the process of mitosis made up of?

Answer 8

Mitosis occurs in a sequential series of steps (prophase, metaphase, anaphase, telophase)

Question 9

What is telophase followed by in mitosis?

Answer 9

Cytokinesis

Question 10

What does cytokinesis ensure?

Answer 10

It ensures the even distrubution of cytoplasm between the cells

Question 11

What is the G0 phase?

Answer 11

It’s a phase in which the cell does not divide anymore

A cell can reenter cell division with appropriate signals

Question 12

What’s special about nondiving cells?

Answer 12

They may exit the cell cycle or be held at a particular phase