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4446575
Cell Structure
Description
This mind map gives a summary of cell structure for the CIE AS level syllabus 2016.
No tags specified
biology
cell structure
as level
Mind Map by
Kudzai Ny
, updated more than 1 year ago
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Created by
Kudzai Ny
over 8 years ago
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Resource summary
Cell Structure
Magnification and Resolution
The number of times greater that an image is than the actual object
The ablity to distinguish between two objects that are very close together
Smooth endoplasmic reticulum
network of membranes
creates lipids and steriods e.g. cholesterol, oeestrogen etc
Rough endoplasmic reticulum
a network of membranes (sacs) extending from the outer membrane of the nucleur envelope
has membrane bound ribosomes on its surface
created proteins move into the cisternia where they may be modified
Vesicles break from the ER to carry proteins to the Golgi body
Golgi body
stack of flattened membranes
collects, sorts, processes and packages substances to be taken to other parts of the cells or secreted
e.g. removal of methionine from newly formed proteins to create funtional proteins
continuously being broken down and formed
Mitochondria
Lysosomes
Ribosomes
Centriolesand microtubules
Choroplasts
Cell wall
Large permanent vacuole and tonoplast
Plasmodesmata
Cell surface membrane
7nm thick
partiallly pearmable
trilamar appearance
controls the movement of substances into and out of the cell
Nucleus
Nuclelous - creates ribosomes
Nucleur envelope - double membrane surrounding nucleus
Nucleur pores - breaks in the nucleur envelope that allow substances in and out the nucleus
e.g. nucleotides and ATP into the nucleus, mRNA and ribosomes out of the nucleus
Chromatin - loosely coiled chromosomes which have funtional units of DNA called genes that control the activites of the cell
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