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Cells & Microscope

Who discovered cells? Robert Hooke
What was being viewed under the microscope when cells were discovered? Peice of Cork (dead tree bark)
How did cells get their name They reminded Hooke of Jail Cells
What does the Cell theory tell us? 1.All living things are made up of cells 2.The cell is the basic unit of life 3. All cells come from other cells
The cell theory states that "All cells come from other cells". What process creates more of the same exact type of cells? Mitosis
The cell theory states that "Cells are the basic unit of life". What does that mean? Everything that is alive has at least one cell
Which cell part controls what enters and leaves the cell? Cell membrane
Which part of a plant cell protects it and gives the plant shape and support? Cell wall
Which part of the cell acts as the control center? Nucleus
Which part of the cell contains DNA? Nucleus
What is the job of a chromosome? Store bundles of DNA (genetic information)
Which cell part makes energy for the cell? Mitochondria
Which plant cell part captures sunlight and is where photosynthesis takes place? Chloroplast
Which cell part is a jelly-like material in which all of the organelles (tiny cell organs) float? Cytoplasm
Which cell part stores food and wastes materials? Vacuole
In which cell part does photosynthesis take place? chloroplast
In which cell part does respiration take place? Mitochondria
What are two cell parts that a plant cell has and an animal cell does not have? Chloroplast and Cell Wall
What type of cell is Square in shape? Plant cell
What type of cell is Round in shape? Animal cell
What tool is used to see tiny objects we normally could not see with the unaided eye? Microscope
How many lenses do you look through when viewing a specimen with a compound microscope ? 2
Where are the lenses that you look through with a compound microscope? Eyepiece and Objective
What microscope part controls the amount of light that enters the stage? Diaphragm
What microscope part holds the slide in place? Stage Clips
Where do you place the slide on a microscope? Stage
What microscope part allows light to pass from the stage to the eye? Body Tube
What is another name of the lens found in the eyepiece? Oculuar Lens
What do we call the lenses on a microscope that magnify the specimen different amounts? Objective Lenses
What is the part of the microscope that allows you to switch to low, medium or high power and holds the objective lenses? Revolving Nosepiece
What part of the microscope moves the body tube up and down so that you can bring the specimen into view? Course adjustment knob
What part of the microscope is used to "fine tune" the image and make the specimen appear clearer? Fine Adjustment Knowb
What two spots should you hold to support the microscope? Arm and Base
What is the "Field of View" of a microscope? The big circle of light that you see in the microscope
What is the diameter of the field of view? The length across the circle of light you see in the microscope
What does the total magnification of a microscope tell you? How much the microscope is enlarging or magnifying the speciman
How do you find total magnification? Eyepiece x Objective Lens
What part of the microscope turns it on and off? Power Switch
What is the name of the cell process during which a cell divides? Mitosis
How many cells are made by mitosis? Two
Why do organisms go through mitosis? Grow and Repair injuries
How do the daughter cells compare the the parent cells after mitosis? They are identical (CLONES) in size and number of chromosomes
What do we call the ability of a cell to allow some things into the cell and keep others out? Selectively Permeable
What part of the cell is said to be selectively permeable? Cell membrane
What do we call the movement of materials across the cell membrane from where there is a lot to where there is a little? Diffusion
Oxygen, food, carbon dioxide and sugar move into and out of the cell by what process? Diffussion
What do we call the difffusion of water? Osmosis
What do we call the slide you prepare to view under a microscope? Wet Mount Slide
Why should you always lower the coverslip into the slide at an angle? Reduce Air Bubbles
Why might you stain a specimen? It makes it easier to see under the microscope
Are all ANIMAL CELLS identical, or the same? No (they have the same cell parts inside but may look a little different)
What are some types of ANIMAL CELLS? Nerve Cells, Muscle Cells, Sperm Cells, Egg Cells
Created by: sloanescience