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Microscopes etc 7.1

microscopes , cell history and theory, cell types

microscope you would use to see the parts of a flower in more detail with a magnification magnification of about 40x dissecting scope
two types of light microscopes that might by used in your biology classroom compound light microscope and dissecting microscope
major disadvantage of electron microscopes when you are talking about the specimens you are viewing you can only view dead objects
which electron microscope has a very detailed 2D view of a cell's interior transmission electron microscope
what is the smallest thing that has been viewed using an electron microscope atom
if you want to look at a virus you would need to use a/an ? microscope electron
describe the image of a scanning electron microscope ( SEM) you see a high magnification, high resolution, image of the surface of an object (3D)
which type of microscope has an issue with resolution as the magnification is increased over 1000 X light microscope
What term describes the clearness or sharpness of a microscopes image... you see the image without being blurry.. resolution
what is meant by an eyepiece that has a number of 10X it magnifies or produces an image that appears 10 x bigger than normal..
What type of microscope could allow a viewer to view a nucleus or chloroplast but doesn't have enough detail to see the golgi , lysosomes, endoplasmic reticulum, etc. You would also not see interior detail of the nucleus light microscope
What is the maximum magnification of a compound light microscope 1000X
What does the microscope do to the image of a letter "e" that is sitting like this on the microscope stage it turns it upside down and backwards
What happens to the image if you move the slide to the left the image would go right ( opposite the way you move the slide)
When you switch from low power to high power ... do you see more of the object or less of the object less of the object .. but it is bigger
When you switch from low power to high power it generally gets darker.. what adjustment would you need to make you would need to add more light using the diaphragm
Which objective should be used when you start to focus the microscope you should use the scanning power ( red ) or the low power ( yellow)
Which adjustment is used to start focusing the image you should use the coarse adjustment ... the stage should be up as far as possible to start and then use coarse adjustment until it comes into focus.. then use fine adjustment
Which adjustment should never be used when you switch to high power never use coarse adjustment... only fine adjustment, and diaphragm
which microscope adjustment is under the stage and controls the amount of light going through the specimen diaphragm
How do you figure out the magnification if the eyepiece is 10x and the objective is labeled Din 50 it would be 10 x 50 or 500X
State the 3 parts of the cell theory... that explains basic thoughts about cells 1. all organisms are composed of cells ( unicellular or multicellular) 2. cells are the basic unit of structure and function in organisms and 3. cells arise only from previously existing cells ( they pass genetic material to daughter cells)
Who looked at cork ( dead cells of oak bark) and after observing small box-shaped structures came up with the word "cell" Robert Hooke
Who designed his own microscopes ( several hundred) and saw organisms in pond water... we discovered single-celled animal-like organisms now known as protozoans ..He is sometimes known as the Father of Microbiology Anton van Leeuwenhoek
What did Schleiden and Schwann contribute to the cell theory Schleiden said plants are composed on cells and Schwann said animals are made of cells THEREFORE ALL ORGANISMS ARE MADE OF CELLS
How can you remember that Schwann said animals are made of cells a swan sounds like SCHWANN... and it is an animal
Virchow also made a contribution to the cell theory by saying that all cells are produced by division of existing cells
Name 4 things that all cells have in common plasma membrane, cytoplasm, DNA and ribosomes
Name 4 kingdoms in which the organisms have eukaryotic cells or are eukaryotes animal, plant, fungi, and protist
Bacteria have ? cells or are ? prokaryotic cells or are prokaryotes
Describe the number of cells in a prokaryotic organisms 1
Describe the number of cells in eukaryotic organisms some are unicellular and others are multicellular
Which type of cells are larger (prokaryotes or eukaryotes) eukaryotes
which type of cells have specialized structure that carry our specific cell functions ( most of these specialized structures are membrane-bound) eukaryotes have membrane-bound organelles
What structure is the most obvious difference between a prokaryotic and eukaryotic cell the nucleus... eukaryotes have a membrane-bound nucleus and prokaryotic cells DO NOT have a membrane-bound nucleus
Created by: shemehl