Biology (microscope & cell test)
Terms
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- Does a prokaryotic cell have a nucleus?
- no
- Which type of cell can be single-celled or multicellular?
- Eukaryote
- Which part of a microscope contains a magnifying lens?
- the eye-piece
- What does the body tube do?
- Keeps the right distance between the eyepiece and the objective lens
- Which part of the microscope supports the body tube?
- Arm
- What does the revolving nose piece do?
- Rotates to change the magnification
- What does the stage do?
- Supports the slide that you are looking at.
- The high-power objective
- magnifies 43x
- The opening in the stage allows what through
- light
- Low-Power objective
- magnifies by 10x
- What does the fine-adjustment do?
- Moves the body tube just a little to sharpen the focus
- What holds the slide in place?
- Stage clips
- What type of adjustment moves the body tube up and down to focus?
- Course Adjustment
- The diaphragm lever...
- Opens and closes the diaphragm
- What supports the microscope?
- Base
- What regulates the amount of light entering the body tube?
- The diaphragm
- The illuminator
- produces and reflects light through the body tube
- What did Schleiden, Schwann, & Virchow do?
- Their work led to the development of the cell theory
- How do you clean the lenses of the microscope?
- With a lens paper
- If you are using high power which adjustment would you use?
- Fine adjustment
- When you increase magnification your field size does what?
- decreases
- Eukaryotic cells are bigger than how many microns?
- 10 microns
- How many chromosomes does a prokaryote have?
- 1
- Polar substances attract _________
- water
- What type of cells have centrioles?
- animal cells
- How many amino acids are there?
- 20
- How do we get amino acids?
- From proteins
- Monosaccharide means
- one sugar
- C H O is the formula for what?
- a disaccharide
- What is the formula for cellulose?
- (C H O )x
- Field of View
- The white circle of light you see when you look in the microscope
- Which power has the smallest field of view?
- High-Power
- How many statements does the Cell theory have?
- 3
- What is the support structure within the cytoplasm called?
- cytoskeleton
- What is the cytoskeleton made out of?
- a thin, fibrous element
- What do cillia and flagella do?
- move the cell
- What are cillia?
- short hairlike projections from the plasma membrane
- Which type of cells are unicellular - prokaryottes or eukaryotes
- prokaryotes
- In what type of cells are cillia and flagella the major means of locomotion?
- Prokaryotes
- What unit of measurement is used to determine the size of samples being looked at under a microscope?
- micrometer
- The idea that living things are made up of cells is called the ___________
- Cell Theory
- Revolving Nosepiece allows you to ___________
- switch objectives
- Which power do you start your observation with?
- Scanning
- How do you find the total magnification of a microscope with an eyepiece of 10x and an objective of 20x?
-
You multiply the eyepiece magnification and the objective magnification.
10 x 20 = 200x - How many micrometers are in a millimeter
- 1,000
- Mitochondria
-
The "power houses"
transform food into energy - Nuclear Membrane
- Regulates what enters and exits the nucleus of the cell
- Nucleolus
- Where ribosomes are made
- Nucleoplasm
- Fills the nucleolus
- Nucleus
- Holds the genetic information of the cell. It is the control center.
- Ribosomes
- Produce proteins
- Vacuole
- Where water, carbohydrates, waste, etc. is stored in a cell
- Cell Wall
- Provides structure and protection to the cell.
- Cell Membrane
- Regulates what enters and exits the cell
- Centriole
- Aids in cell division. Are only in animal cells
- Chloroplast
- Changes light into energy in plant cells.
- Chromosomes
- Contain the gender information of a cell.
- What are the 2 types of cells?
- Prokaryotes, and Eukaryotes
- What are the 2 types of Eukaryotic cells?
- Plant cells and Animal cells