if you could eat anything before a big game or race, what would you eat and why? be sure to tell me...
TRANSCRIPT
If you could eat anything before a big game or race, what would you eat and why?
Be sure to tell me what food you would eat, what organic molecules it contains, and why it would help you.
1. Unlike carbohydrates and fats, proteins contain ___.
A. Nitrogen B. hydrogenC. Carbon D. oxygen
2. The various enzymes in our bodies are ___.
A. Lipids B. ProteinsC. Carbohydrates D. Nucleotides
Warm-up Quiz Notes Microscopes Clean-up Cool-down
Guided Notes 7
Father of Microscopy-Anton van Leeuwenhoek-created the single lens microscope or simple microscope
More than one lens = compound microscope
Power of a microscope = magnification = ocular lens x objective lens
Ex: 10x ocular lens x 10x objective lens = 100x total magnification.
HOW BIG CAN IT GET = magnification
400x total magnification = 40x X ___?
_____ total magnification = 10x X 50
Field of view = how much can you see?
Small field of view/more detail:
Large field of view/less detail:
Steps to preparing a slide: 1. Place specimen in middle of slide
2. Add drop of water 3. Place cover slip over specimen 4. Put slide onto stage 5. Secure slide with stage clips
Types of Microscopes:1.Light Microscope2.Electron Microscopea. Transmission Electron Microscopeb. Scanning Electron Microscope
Allows light to pass through the specimen and uses two lenses to form an image
Magnification = 1000x
Uses beams of electrons to produce images
Magnification = 1000x better than light microscope
Shines electrons through specimen
Scans a narrow beam of electrons across the surface (3D)
1. All organisms are composed of one or more cells.
2. Cells are the basic units of structure and function in living things.
3. New cells are produced from existing cells.
The biggest thing that helped the development of the Cell Theory was the microscope.
Year Scientist Contribution
1665 Robert Hooke
Looked at sections of cork with a microscope and introduced the word “cell” to science
1674Anton van Leeuwenhoek
Observes tiny living organisms in drops of pond water through a simple microscope
1838Matthias Schleiden
Plants made of cells
1839 Theodor Schwann Animals made of cells
1855 Rudolph VirchowStated that all living things come from other living things
There are two types of cells:1.Prokaryotic2.Eukaryotic
Prokaryotic Small Example: Bacterial cells
Important: First type of cell to exist
Eukaryotic Big Examples: Plants and Animal cells
Prokaryotic Eukaryotic
Came first 3.5 bya No nucleus or organelles
Contain: ribosomes, cell membrane, and DNA
DNA found in a single, circular chromosome
Kingdom Bacteria
Came from prokaryotic cells
Have a nucleus and organelles
DNA found in the nucleus
Contains 1000x the DNA of prokaryotic cells
KingdomsProtista, Fungi, Plantae, Animalia
Organelles are
Review
Which type of cell has a nucleus?
Eukaryotic
Which type of cell does not have organelles?
prokaryotic
If my ocular lens is 10x and my objective lens is 40x, what is my total magnification?
400x
All cells come from existing….
cells
Cells are the basic units of ___________ and _____________.
Structure and function
Which came first, prokaryotic cells or eukaryotic cells?
Prokaryotic cells
True or False: Prokaryotic cells have DNA
TRUE!
1. All living things are made up of ___.A. cells B. wastesC. cork D. cellulose
2. Which of the following does NOT describe a polymer?
A. Polymers are made of monomers.B. Polymers are large molecules.C. Polymers usually form by covalent bonding.D. Polymers are the subunits of monomers.
Warm-up Microscope Lab or Book Review ?s
Vocab Review Clean-up Cool-down
List the 3 parts of the Cell Theory.
List 2 similarities and 2 differences between prokaryotes and eukaryotes.
Warm-up Prok. vs. Euk. Venn diagram Cells & Microscope Worksheet Prokaryotic coloring with questions Cells: The Basic Unit of Life video with questions
Vocab practice Clean-up Cool-down