Definitions
Motility structure present in some animal cells, composed of a cluster of microtubules within an extension of the plasma membrane.
Flagellum
Helps maintain shape.
Cytoskeleton
Have chloroplasts
Plant cells
Three most important parameters of microscopy
Magnification, resolution, and contrast
What are the 3 major domains of life?
1. Eukaryotes
2. Prokaryotes
3. Archaea
Organelle active in synthesis, modification, sorting, and secretion of cell products.
Golgi apparatus
Regulates activities in the cell
Nucleus
No cell walls
Microscope where light is passed through a specimen and then a lense.
Light microscope
Only domain that includes nucleuses.
Eukaryotes
Digestive organelle where macromolecules are hydrolyzed
Lysosomes
Ribosomes
Cannot absorb much liquid because it has no cellulose
Animal cells
Focuses a beam of electrons onto the surface of the specimen, providing images that look 3D
Scanning electron microscopes (SEM)
Has a plasma membrane, cytoplasm, and ribosomes.
All 3 domains.
Organelle with various specialized metabolic functions; produces hydrogen peroxide as a by-product and then converts it to water.
Peroxisome
Known as the powerhouse of the cell; where the cell generates energy
Mitochondria
Can absorb liquids
Plant cells
Focuses the beam of electrons through the specimen
Transmission Electron microscopes
Which of the following is an example of a prokaryotic organism?
1. E. Coli
2. Strep bacteria
3. HIV
Network of membranous sacs and tubes; active in membrane synthesis and other synthetic and metabolic processes; has rough and smooth regions.
Endoplasmic reticulum
Degrade and recycle cellular waste
Lysosomes
Have a rough and smooth Endoplasmic reticulum
Both animal and plant cells
Visualizes structures of specimen at very low temperature in their cellular environment
Cryo- electron microscopy
How are the 3 main domains of life related?
DNA