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Summary Topic 2 - cells

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Escrito en
2024/2025

In depths mindmaps of sub- topics within Topic 2 (cells) of Alevel biology Notes are formed with markscheme points within it and diagrams. Have some extra information to help with essay writing.

Institución
Grado

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·
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circular DNA -
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no membran band membran band organdy
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80s ribosomes

-




murein/peptidoglycan -

celluse/chilin all
all wall wall


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no nuclear membra
-

nuclear membrane

-
Double membran
-

Single membram

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uses e-instead of light
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uses a thin specimen so e-can pass
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resolution = Inm
-


placed in vaccum to disallow ore-affecting
-shower wavelength Me specimen being observed
than light : improved not alive
resolution Specimen
-




colour picture
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-complex staining process
needs to take place for
>
-




using
2d images as elections specimen be viewed
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to allow e-through that
charge pass through
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needs to be very thin things on the pichuse
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lenses
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focused using glass
be this



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sample tissues studied needs to


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determine enough to allow light to
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specimen that absorb more
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light will
-




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-




allowed
-




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-




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release large wavelength of light
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↳ using a alteratives
-

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arch pellet
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a
Evenly ripe

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remaining filterate
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order
removed
supernatent again
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is
· next heaviest (mitochondria) Fams a pellet +

accurate measurements of
·
process repeals used to take
Hitchondria subcellmar shuckses
organelles to be separated speed of centrifugal an(er/min)
Nuclei 1000 1 . Measure with eyepiece graicule
Mitochondria 3500
.
2 Calibrate eyepiece graicule against
Stage micrometer
16500 calculate
Lysosomes . Take no measurements
3 + mean

Escuela, estudio y materia

Nivel de Estudio
Editores
Tema
Curso

Información del documento

Subido en
2 de enero de 2025
Archivo actualizado en
2 de enero de 2025
Número de páginas
7
Escrito en
2024/2025
Tipo
RESUMEN

Temas

$7.50
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