cells Flashcards

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1
Q

what is the difference between a prokaryote and a eukaryote?

A

a prokaryote does not have membrane bounded organelles
example : bacteria
a eukaryote has membrane bounded organelles
example : animals and humans

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2
Q

define an organelle

A

a membrane bounded structure that has a specialised function

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3
Q

what is the cell theory?

A

all living things are made up of cells
all cells come from pre existing cells
cells are the basic units in which processes of living take place

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4
Q

what is permeability?

A

the ability to pass through

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5
Q

what is the current model of the plasma membrane?

A

fluid mosaic model

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6
Q

what are the roles of the plasma membrane?

A

separates a cell from its external environment
acts as a barrier
maintains concentration gradient

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7
Q

what are the 3 types of microscopes?

A

TEM SEM and light microscope

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8
Q

distinguish differences in plant cells and an animal cells?

A

plant cells have one single vacuole , a cell wall and chloroplast
animal cells have multiple vacuoles and have no chloroplast

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