Cell & Chemistry Review Test is Thursday (2/3) and Friday (5, 6, 7 & 8)! Study guide is due day of test! Review session Thursday/Friday AM!

Basic unit of structure and function of living things 1. What are cells? Basic unit of structure and function of living things Basic unit of life Round Square

Written by: Schwann Schleiden Virchow 2. Cell Theory: Widely accepted explanation of the relationship between cells and living things. 1. All living things are composed of cells 2. Cells are the basic unit of structure and function in living things 3. All cells are produced from other cells Written by: Schwann Schleiden Virchow

4. Plant vs Animal Cell Plant Cells Vacuoles are large Chloroplast (make food) Cell Wall (give square shape) Animal Cells Vacuoles are Small Heterotroph because cannot make own food Cell Membrane ONLY(round shape)

5. What’s the difference? Prokaryotes do NOT have a nucleus Very simple organisms (ex: Bacteria) Eukaryotes HAVE a nucleus More complex organisms (YOU = Eukaryote)

6. Getting Energy Autotrophs have ability to make their own food through photosynthesis Plant cells have chloroplasts to carry out this process Hetertrophs DO NOT have the ability to make their own food (must consume food) Ex: Humans, dogs and fish

7 and 8 : Elements and Compounds Elements: Made up of only one type of atom Ex: Hydrogen (H), Oxygen (O) and Carbon (C) Compounds: Two or more elements combined together (like a compound word) Ex: Water (H2O) and Carbon Dioxide (CO2) Organic Compounds contain Carbon (like Carbon Dioxide)

10. Cell Cycle A. Interphase B. Mitosis C. Cytokinesis

11. Mitosis (PMAT)

12. If you start with 5 parent cells and they all undergo mitosis, how many daughter cells will result? If you start with 5 and all divide into 2, (5 x 2) you will get 10 daughter cells

13. Osmosis vs Diffusion Diffusion is movement of molecules from a more concentrated to less concentrate area through semi- permeable membrane Osmosis is the diffusion of WATER!

14. Microscope Allows you to make smaller things appear larger Couldn’t discover cells until the microscope was invented Simple Microscope has only one lens Compound Microscope has two or more lenses

15. Discoveries Robert Hooke: Came up with term “cells” (looked like rooms that monks lived in) Non-living cells (cork)

Pond Water 15. Discoveries Leeuwenhoek: First person to look at living cells Called them animalcules Pond Water