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What is a compound light microscope used for?

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Chapter 3 cell structure a function. 1x points to Ponder slide** What does cell theory tell us

o cell theory formulared after microscope in itoncentury 1. A cell is the basic unit of life TO ALL living things are made up of cells

What is transmission electron microscope used for?

• New cells come from preexisting cells

• Look different .ñ 100mm in diameter w/ width of human hair Don't forget about the age old question of What is evolution in simple terms?

red blood cell-do not have nucleus " Why are cells small?

consider the cell surface area to volume : - small cells have larger surface area

What is a scanning electron microscope used for?

We also discuss several other topics like What is the most common temperament?

Waliowo more nutrientoina was res to exit easier 6- there is a limit to how large cell can be

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common microscopes to view celle compound Right microscope Flower magnifiedhon 1-uses light beams to view mages - wiew livě specimens

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transmission electron microscope

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-2-D

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uses electrons to view internal structure -high mag, no live speciinans - must kill spea Don't forget about the age old question of Why do businesses want to make a profit?
We also discuss several other topics like How does action potential spread through an axon?

reason it can

be 3-D

scanning electron microscope 3-D - wes electrons to view surface structures (coated w metal - high maq, no live specimans must all specs

Prokaryotic vs Eukaryotic. probarone - Lack a nucleus -includes bacteria If you want to learn more check out What does it mean to say that race is not biologically determined?

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anos APNS

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Eukaryono - Have a nucleus that houses DNA many membrane-bound organelles - incl animals, plants, fungi What do they have in common ?

plasma membane 1 surrounds a delineates cell 2. Regulates what enters dexits. 3. Phospholipid bilayer 4.) selectively permeable 5.) cell surface proteins A curoplasm that is semi fluid portion inside cell Don't forget about the age old question of Why do we treat children as a special audience?

contams organelles

• DNA know nucleus, plasma membrane, cytoplasm cutoskeleton

ane, y lopiasm, cytoskeleton, centrioles, mitochondrion !

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pasma membrane

phospholipid bilayer 2 embedded' w proteins 3 cholesterol for support y carbohydrates on proteins & lipids. 5 selectively permeable 6. fluid - mosaic

Fest

what does selectively permeable mean?

• membrane allows some things in, while keeping others

out

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How do things move across plasma membrane?

1. diffusion 2 osmosis 3 facilitated transport 14 active transport 5. endocytosis a exocytosis Diffusion & osmosis?

random movement of morequires from higher to

a lower. Passive way. No energy 2. LOSmoshi - diffusion of H2O from higher to a lower

solute is unable to pass the membrane

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How does tonicity change a cell i

• Isotonic solutions have equal amts of solute inside

doutside cell & this does not affect cell hypotonic & solutions have less solute than inside of

cell will burst hyperionic solutions have more solute than aside

of cell will shrink X SEA WATER Dehydratest what is facilitared transport? 3. facilitated transport Transport of molecules across

plasma membrane from a higher to a lower

via a protein carrier NO ENERGY NEEDED Heathieman ranspon: movement of molecules from a lower to

Lhigher Tusing ATP requires protein carrer

5. Endocytosis transports molecules or cells into the

cell via invagination of the plasma membrane to form a vesicle

ex: phagocytosis, pinocytosis, receptor mediated Neutrophil phagocytout 6. Exocytosis : transports molecules outside cell

Via fusion of a vesicle w plasma membrane

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Lysosomes i membrane sacs contain hydrolytic enzymes

ex: White blood cells engulf bacteria

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enzymes.

most are named for molecule they work on or

(pna polymerase

to what substrate they work on

have -

- where substrate binds not used up in reaction but instead are some are aided by non protein molecules called -

How PO ENZYMEJ Work?

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nosApnas

substrate is broken

substrates are combined to down to smaller products produce larger product

(ex: DNA polymerase) What do mitochondria do a what do they look likes . the

of the cell highly folded organelle in eukaryonc cells produces energy in form of by

udy Soup

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Chapter 3 cell structure a function. 1x points to Ponder slide** What does cell theory tell us

o cell theory formulared after microscope in itoncentury 1. A cell is the basic unit of life TO ALL living things are made up of cells

• New cells come from preexisting cells

• Look different .ñ 100mm in diameter w/ width of human hair

red blood cell-do not have nucleus " Why are cells small?

consider the cell surface area to volume : - small cells have larger surface area

Waliowo more nutrientoina was res to exit easier 6- there is a limit to how large cell can be

@StudySoup

Study Soup

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soup

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common microscopes to view celle compound Right microscope Flower magnifiedhon 1-uses light beams to view mages - wiew livě specimens

@ StudySoup

transmission electron microscope

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-2-D

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uses electrons to view internal structure -high mag, no live speciinans - must kill spea

reason it can

be 3-D

scanning electron microscope 3-D - wes electrons to view surface structures (coated w metal - high maq, no live specimans must all specs