1. Scientific American: Chilling Changes
Read article pages E 2-5
What do you call passing the winter in a sleeplike state?
What happens if ice forms inside a cell?
What’s one animal that avoids freezing?
What’s one animal that tolerates freezing?
What types of environments present challenges for living things?

2. Where does cell respiration occur in the body?
Warm Up February 10th, 2016
Where does the energy you use come from? Explain…
Compare and contrast a cell to an atom.
Cell respiration is the process in which food is converted into energy. Which two substances are needed for cellular respiration?
***BONUS***
Where does cell respiration occur in the body?

3. Warm Up February 10 6H2O + 6CO2  C6H12O6 + 6O2
Identify the chemical reaction above.
What are the reactants and products above?
What is cellular respiration?
Why do plants need to go through this chemical reaction (above) before performing cell respiration?

4. Review and Discuss Pre Assessment Data – New Cooperative Groups
Unit 2D Chemistry and Natural Resource Test – Most Missed Questions - Thursday

5. Introduction to Cells
PRE Assessment……………..

6. What do you remember about cells from 7th grade?

7. Living Things common characteristics common needs.
Living Things have :
common characteristics
common needs.
are different from non living things
The microscope led to the discovery of cells.

8. To Be Classified as Living it must:
Be organized
Grow and develop
Respond to its environment
Be able to reproduce
All organisms need energy, materials, and living space. All energy for life on Earth comes from the sun.
ALL living things are made from cells.

9. Cells The microscope led to the discovery of cells.
Robert Hooke gave the cell its name in the 1660’s.
He compared the cell structure of a piece of cork to the structure of apartments or living spaces that monks live in. 30x scope
Anton Van
Leeuwenhoek also
studied cells in the
1670’s. A drop of pond
Water, 300x scope

10. Cells come from Cells!
1850’s - cells divide, that’s how they multiply hahaha
So, one living cell divides into two living cells.
The cell is the smallest unit that performs the basic activities of life. Multicellular organisms have specialized cells that work together.
Unicellular organisms-single cell that does ALL the activities for life.

11. The Cell Theory
A theory is an explanation of what is observed, and must be supported by evidence. Pasteur used the cell theory as a foundation for his studies.
He Found that:
Bacteria causes food spoilage, sour milk, many diseases.
Living things do not rise by spontaneous generation

12. The Cell Theory
The importance of the cell to life is summarized in the cell theory. (13E)
1. All living things are made of cells
2. Cells carry out the functions needed to support life.
3. Cells come ONLY from other living cells.

13. WRITE
What do scientists mean when they say that life comes from life? Your answer should include the word CELLS.

14. Bill Nye: Cells New Cooperative Groups Post Video Quiz
Review and Discuss
Trade and grade

15. The smallest units of life!
Brain Pop: Cells
The smallest units of life!

16. The smallest unit of life.
Cell*
The smallest unit of life.

17. Cell Organelles to Label
Label the following organelles.
After labeling, write a 2 sentence description of the organelles cell function under the diagram.
Be careful to label the correct type of cell with its correct organelles.
Organelles (6): cell wall, cell membrane, mitochondria, ribosomes, nucleus with DNA, and chloroplasts with chlorophyll.

18. Cell Organelle Functions
cell wall- provides plants cells with structure
cell membrane- decides what goes in and out
Mitochondria- powerhouse of the cell (cell resp.)
Ribosomes- makes proteins to repair cell parts
nucleus with DNA- brain of the cell. Holds DNA
chloroplasts with chlorophyll- responsible for photosynthesis

19. Large molecules made up of smaller molecules linked together.
Macromolecule*
Large molecules made up of smaller molecules linked together.
Types: carbohydrates, lipids (fats), proteins, and nucleic acids

20. A macromolecule is a very large molecule, such as protein, commonly created by polymerization of smaller subunits (monomers). They are typically composed of thousands or more atoms.

21. What do you know already?
What is a carbohydrate and where have you heard of them?
What is fat?
What is protein?
What is a nucleic acid?
These are all macromolecules: Large molecules

22. The smallest units of life!
Brain Pop: Cells
The smallest units of life!