1. Bell ringer (write the questions)
What are the building blocks of nucleic acids?
Match the base pairs of nucelaic Acid? A G
How is RNA different from DNA? (hint: refer to question 2)
What two things are responsible for denaturing proteins?

2. Prokaryote vs. Eukaryote

3. What is a Cell? Cell – Basic unit of living things.
Organisms are either:
Unicellular – made of one
cell such as bacteria and
amoebas. OR
Multicellular – made of
many cells such as plants
and animals.

4. Scientists to Remember
Robert Hooke (1665) – Observed “cells” in cork

5. Anton van Leeuwenhoek (1674)
Father of Microscopy
Saw tiny living things in pond water.

6. Cell Theory
Confirmed discoveries that all scientists believe to be true about cells:
1. Cells are the basic unit of life.
2. All living things are made of cells.
3. New cells are produced from existing cells.

7. Microscopes
Light Microscope – magnifies tiny organisms up to 1,000 times.
-Uses light and lenses.
-We use these.
Electron Microscope – magnifies
up to a million times.
-Uses electrons.

8. Bell ringer Who is known as the father of microscopy?
What are the two types of microscope? How are they different?
What are the main components of the cell theory?

9. The Discovery of Cells Prokaryotic before nucleus Eukaryotic true

10. Eukaryotes Has a nucleus with a nuclear envelope
Bigger and more complex than prokaryotes
Have membrane bound Organelles (golgi, ER, lysosomes…etc)
DNA – double-stranded and forms chromosomes (highly organized)
Can be uni- OR multicellular organisms
Ex: animals, plants, fungi

11. Prokaryotes NO nucleus NO membrane bound organelles (just ribosomes)
ALL are unicellular
Smaller than eukaryotic cells
Forerunner to eukaryotic cells (smaller and more simple)
DNA – single strand and circular
Ex: ALL Bacteria 13

12. Similarities Contain all four biomolecules Have ribosomes Have DNA
(lipids, carbs, proteins, and nucleic acids)
Have ribosomes
Have DNA
Similar Metabolism
Can be unicellular
Have cell/plasma membranes or cell wall

13. Eukaryote VS. Prokaryote Picture