Cell Theory Standard: 7.1 All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only through a microscope.

Objectives Students will:  know all living organisms are made of one or more cells  know the cells is the smallest unit of life  be able to explain and summarize the cell theory  be able to name the basic components of life

True or False???  All living things are made of cells? TRUE

How do you know??? Have you seen your cells??  YES, YOU HAVE!  You’ve ALL seen your own cells! When you made a wet mount slide you observed cells from the tissue of your cheek!

Read with me…  “The Cell Theory” pg. 49

All organisms are made of one or more cells. The cell is the smallest unit of life. All new cells come from preexisting cells Complete your notes:

How do you know if something is alive?? Which is alive? Why? What can a living thing do that a non-living thing can NOT?

Read with me…  “Characteristics of Life” pg

Organization Responses Reproduction Homeostasis = BALANCE Energy Growth and Development

Read with me…  “Water- The Main Ingredient” pg. 53

Water helps maintain homeostasis (balance). Water can dissolve molecules. Water in the blood helps transport substances.

Other basic substances of life…  Proteins  Nucleic Acids  Lipids  Carbohydrates