1. Intro to Cell Growth & Reproduction (Evolution of the First Cell)
Biology
Mrs. Harper
11/9/17

2. November 9, 2017 Download Notes Begin working on Do Now
Intro to Unit 3 begins TODAY!

3. Do Now 11/9/17 How do you feel you did on your test?
How did you prepare for the test?
List the different types of cells we learned about in Unit 1.
Which of these types do you think came first? Why?
As humans, how many cells did we start out as?
How many cells do you think are in the human body today?
How do you think our body produces more cells?
What are some organelles found within our cells?

4. Intro to Cell Growth & Reproduction (Evolution of the First Cell)

5. The Beginning of Cells
As humans, we start out as one single fertilized egg cell.
As adults, our bodies contain over 50 trillion different cells
So, how exactly do we get from 1 cell to over 50 trillion????

6. Cell Growth Cells must grow before they can produce more cells.
Cells grow through a process called interphase.

7. Cell Division
Once cells are large enough in size, they are able to divide and produce more cells.
The process by which cells divide is called mitosis.

8. How the First Cells Came to Be
The first cells on Earth, were members of the domain Archaea.
These were prokaryotic cells that lived in EXTREME environments deep on the oceans floor.
From these cells came the trillions of cells on Earth today.

9. How Life Evolved Article
Turn to the back of your notes sheet
We are going to walk through how the first cell came to be
Later, we will watch a short video illustrating this process

10. The First Cell Video

11. Assignment Read the article and answer the questions that follow
Answer the questions thoroughly and completely (use complete sentences)
We are working independently on CODE RED