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3576946
1.1 Introduction to cells
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biology
Mind Map by
nealane97
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Created by
nealane97
almost 9 years ago
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Resource summary
1.1 Introduction to cells
Cell theory
smallest life unit
from pre-existing cells
living organisms-cells
Unicellular organisms
carry all functions
metabolism-excrete respire
response to stimuli
growth
reproduction
homeostasis
nutrition
Surface area: volume
cellsize limited
diffusion of exchange materials
v increase more than s.a
leads to problem
necessary exchange limited;
overcome
protruding extensions
flattening cells
Emergent properties
Multicellular organisms
achieve more than = of each cell could do
cells interact
Magnification
magnified size / real size
using microscopes
TEM
study internal
SEM
study outer cells
light compound mic
objective lens power * eyelens power
Stem cells-unspecialised
totipotent
embryo
high potency of all cell
pluripotent
zyogote --> blastocyst
apart potency
multipotent
limited potency
differ normal cells
undifferentiated
self-sustaining
therapeutic use
bone marrow transplant
treat leukaemia
Stargardt's disease
retinal pigment epithelial cells
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