59 Questions
What is the primary purpose of using a microscope?
To understand the structure and function of cells
What type of microscope uses electrons instead of light to observe very fine details?
Electron Microscope
What is the function of the eyepiece in a light microscope?
To magnify the image
What is the purpose of the diaphragm in a light microscope?
To control the amount of light reaching the specimen
Why is it important to clean the lenses of a microscope with proper lens paper?
To avoid damaging the lenses
What is the purpose of the coarse and fine focus knobs in a light microscope?
To adjust the focus of the image
What type of microscope is suitable for viewing live cells and tissues?
Light Microscope
What is the purpose of a wet mount in preparing a specimen for microscopic observation?
To observe living organisms and aquatic samples
Why is it important to store a microscope with the lowest objective lens in place?
To prevent dust accumulation
What is the main purpose of staining in microscopy?
To enhance contrast and allow for better visualization of structures
What is the term for the process by which cells become specialized to perform distinct functions?
Differentiation
What type of stem cells can become any cell type in the body?
Embryonic stem cells
What is the term for organisms that consist of a single cell that performs all life functions?
Unicellular organisms
What is the hierarchy of organization in multicellular organisms?
Cells, tissues, organs, systems, organism
What type of mount is used for observing hair, feathers, pollen grains, or dust?
Dry mount
What is the purpose of the coarse focus knob in a microscope?
To bring the specimen into general focus
What type of cells are flat and cover surfaces?
Epithelial cells
What is the term for the process of spreading a sample thinly across a slide and allowing it to dry?
Smear
What is the function of epithelial tissue in the digestive system?
To protect the body and cover surfaces
What is the primary function of epithelial cells in the body?
To protect the body by covering surfaces
What is the purpose of a smear in preparing a specimen for microscopic observation?
To spread a sample thinly across a slide and allow it to dry
What is the main difference between embryonic stem cells and adult stem cells?
Embryonic stem cells can become any cell type in the body, while adult stem cells are more limited in their differentiation potential
What is the term for the organization of cells that specialize and work together to perform a specific function?
Tissue
What is the purpose of using a dry mount in preparing a specimen for microscopic observation?
To observe hair, feathers, pollen grains, or dust
What is the term for the process by which cells become specialized to perform distinct functions?
Differentiation
What is the purpose of using a cover slip when preparing a specimen for microscopic observation?
To avoid air bubbles and allow for clear observation
What is the term for organisms that consist of many cells that specialize and work together?
Multicellular organisms
What is the purpose of using staining in microscopy?
To enhance contrast and allow for better visualization of structures
What is the term for the basic unit of life in multicellular organisms?
Cell
What is the main advantage of using an electron microscope over a light microscope?
It provides higher magnification and resolution
What is the purpose of the objective lenses in a light microscope?
To magnify the image
Why is it important to use a stable, flat surface when placing a microscope?
To prevent damage to the microscope
What is the purpose of a wet mount in preparing a specimen for microscopic observation?
To view living organisms and aquatic samples
Why is it important to handle cover slips by the edges?
To prevent fingerprints on the cover slip
What is the main difference between a light microscope and an electron microscope?
The source of illumination
What is the purpose of the stage in a light microscope?
To provide a stable platform for the slide
Why is it important to focus smoothly and slowly when using a microscope?
To prevent damage to the lenses
What is the main advantage of using a light microscope over an electron microscope?
It can view live cells and tissues
Why is it important to carry a microscope with one hand supporting the base and the other holding the arm?
To prevent damage to the microscope
What is the primary function of the objective lenses in a light microscope?
To magnify the image
Why is it important to use a cover slip when preparing a specimen for microscopic observation?
To prevent the specimen from drying out
What is the main advantage of using an electron microscope over a light microscope?
Higher resolution
Why is it important to handle microscope slides with care?
To prevent breakage of the slide
What is the main function of the diaphragm in a light microscope?
To control the amount of light reaching the specimen
Why is it important to clean the microscope lenses?
To prevent damage to the microscope
What is the primary function of the coarse focus knob in a microscope?
To rapidly bring the image into focus
Why is it important to store a microscope with the lowest objective lens in place?
To prevent damage to the microscope
What is the main advantage of using a wet mount over a dry mount in preparing a specimen for microscopic observation?
It prevents the formation of air bubbles
What is the main purpose of a wet mount in preparing a specimen for microscopic observation?
To observe living organisms and aquatic samples
What is the term for the process of cell specialization that enables multicellular organisms to perform complex functions?
Differentiation
Why is it important to carry a microscope with one hand supporting the base and the other holding the arm?
To prevent damage to the microscope
Which type of stem cell has a limited differentiation potential and is essential for tissue maintenance and repair?
Adult stem cell
What is the main function of epithelial cells in multicellular organisms?
To protect the body and cover surfaces
What is the term for the organization of cells that work together to perform a specific function?
Tissue
What is the purpose of using a smear in preparing a specimen for microscopic observation?
To spread the sample thinly across the slide and allow it to dry
What is the term for the basic unit of life in unicellular organisms?
Cell
What is the purpose of using staining in microscopy?
To enhance the contrast of the specimen and allow for better visualization of structures
What is the term for the organization of cells, tissues, organs, and systems that work together to perform complex functions?
Multicellular organisms
What is the main difference between unicellular and multicellular organisms?
The number of cells
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