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semester 1 > cells + cells transport > Flashcards

cells + cells transport Flashcards

1
Q

what prokayotic cell contains

A

cell wall made of murein
- cell membrane
- cicular DNA
- ribosomes
- cytoplasm

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2
Q

nucleus

A

has genetic material
control protein synthesis

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3
Q

ribsomes

A

made of protein and rRNA
protein synthesis

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4
Q

endoplasmic reticulum

A

rough - ribosomes / secret protein
smooth - no ribosomes/ production and transport of lipid

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5
Q

golgi apprantus

A

add carbs to protein
packages protein
produce lysosomes

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6
Q

lysosomes

A

sacs of hydrolytic enzymes
engulf and digest by phagosytosis

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7
Q

centrioles

A

spindle made of microtubles
control seperation of together chroomosomes

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8
Q

mitrochondria

A

involve aerobic respiration produces ATP

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9
Q

chloroplast

A

site of phytosynthesis

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10
Q

cell wall

A

provide strength and support the shape

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11
Q

cell wall of algae

A

cellulose and glycoprotein

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12
Q

cell wall of fungi

A

chitin and glycoprotein

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13
Q

tissuse

A

group of similar cells

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14
Q

organ

A

different tissuse

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15
Q

system

A

2 or more organs

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16
Q

epithial cells

A

folded into microvilii - large SA
Lots of mitrochondira providing energy in term of ATP

17
Q

3 condition of cell fractionation

A

isotonic - so no osmotic movement
low temperture or ice cold - prevents the action of enzyme
buffer- maintains PH

18
Q

order of organelles that are seperated

A

nuclei
chlooplast
mitrochondria
endoplasic reticlum
ribosomes

19
Q

elctron microscope

A

shorter wavelength
greater resoulation

20
Q

difference between light and electron microscope

A
  • ligt uses light whereas electron uses elcron beams
  • light uses lower resolution wheras elecron is greater
  • light produces image in colour as elctron don’t
  • light shows simple and quick + easy to prapare
21
Q

difference in TEM and SEM

A
  • TEM has a higher resolution than SEM
  • TEM produces internal images whereas SEM produces external only
  • TEM give 2D as SEM produces 3D
  • TEM must be thin as SEM can by thick
22
Q

cell membranes structure

A
  • hydrophilic heads
  • hydrophobic tail
  • cholesrtol - strength, restricts movements
  • carrier protein- facilited diffusion and active transport
  • channel protein- faciited diffusion
  • glycoprotein and gycolipid
23
Q

diffusion

A

is a net movement from high to low concentration
passive

24
Q

facilieted diffusion

A

involves channel and carrier
passive

25
Q

active transoport

A

the movemnet from low to high concentration in partialy permerable membrane
- uses ATP
- attatch carrier and channel protein
factors effector: temperture, oxygn, inhabitors

26
Q

osmosis

A

is the net movement of water from a high water potentail to low water potential

27
Q

osmosis

A

is the net movement of water from a high water potentail to low water potential

semester 1 (8 decks)

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