1. Classification Unit Test
Monday and Tuesday
Get out your notes and
begin review

2. CRCT Practice September 17, 2014
Leaf cells use chlorophyll to absorb
Oxygen
Light energy
Carbon dioxide
glucose

3. NOTES, September 17, 2014
Atoms are the smallest particle of all matter.
Elements are a type of matter where all the atoms
are the same. Elements can not be broken down.
Example: hydrogen or oxygen
A compound is when two or more elements are
chemically combined. Example: 6H₂O
A molecule is the smallest part of a compound.
H₂O

4. Four large molecules that support
cell function:
Carbohydrates-give energy
Lipids-fats, oils, waxes found in
living things
Proteins-made of amino acids;
enzymes are types of proteins
that control chemical reactions

5. 4. Nucleic Acids-molecules that
hold the instructions for the
maintenance, growth, and
reproduction of a cell (DNA and
RNA)

6. 36. Organic compounds-compounds found in all living things in nature
36. Organic compounds-compounds found in all living things in nature. Only living(or once living) organisms can contain organic compounds. Hint: look for the element carbon (C )
37. Inorganic compounds-compounds found in all nonliving things in nature.

8. CRCT Practice September 18, 2014
The cells of a redwood tree require
oxygen for the process of
Photosynthesis
Cellular respiration
Fermentation
Binary fission

9. Notes September 18, 2014
Cells must:
Get materials they need into the cell
Get rid of waste products in the cell
Have chemical reactions in the cell

10. Vocabulary
38. homeostasis- “balanced”; the
number of molecules inside a cell
are the same as the number of
molecules outside the cell
39. diffusion-the movement of
molecules across a cell membrane(in
or out of cell)

11. 40. osmosis- a type of diffusion;
moves ONLY water molecules across
the cell membrane
41. active transport-the movement
of molecules in or out of a cell when
the cell uses energy

12. 42. passive transport-the movement
of molecules in or out of a cell
WITHOUT the cell using energy
(diffusion and osmosis)

13. Reading pages 56-60; guided

15. CRCT Practice September 19, 2014
Both a whale and a seaweed use
which of the following to
change glucose into energy?
Water
Photosynthesis
Cellular respiration
Bonding

16. Notes 9/17/14
Chemical energy is provided to all
cells as glucose. Water is needed for
all chemical reactions in a cell.
Osmosis is a special type of diffusion.
Osmosis only moves water molecules
in and out of a cell. This is because
cells need so much water. (passive)

17. Diffusion is a type of passive transport
that moves molecules in or out of
cell ( carbon dioxide, oxygen…)
Active transport moves molecules but
Must use some the cell’s energy to do
This. Salt moves across a cell’s
membrane this way.

18. Diffusion of carbon dioxide

20. Osmosis- WATER ONLY

22. CRCT Practice September 18, 2014
The process by which water moves across
a cell membrane is
Diffusion
Active transport
Osmosis
Facilitated diffusion

23. Practice with osmosis and diffusion