prokaryotic and eukaryotic cells Flashcards
how did the first eukaryotic cells evolve?
endosymbiotic theory: eukaryotic cells evolved from a symbiotic relationship between two or more prokaryotic cells when smaller cells were engulfed by bigger cells
prokaryotic cells have a…
cell membrane, cytoplasm, ribosomes and genetic material
do prokaryotic cells have membrane-bound organelles?
no
some prokaryotic cells will have a…
cell wall, pili (adheres to substances), flagella (tails)
prokaryotic cells are divided into two groups:
bacteria and archaea
true or false: prokaryotic cells are the oldest cell type
true
true or false: eukaryotic cells evolved from prokaryotic cells
true
eukaryotic cells contain a…
nucleus and membrane-bound organelles, making them more complex
magnification
how much bigger the image is than the specimen
magnification is calculated by…
multiplying the magnification of objective lens with magnification of ocular lens
resolution
the ability to distinguish between two points that are close together
Field of View (FOV)
the diameter of the circle of the view you can see when looking down a microscope
FOV can be calculated by…
a tiny ruler printed into the surface, known as a “minigrid”. As magnification increases, FOV decreases
