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Biology IB HL
Grade Gorilla Mistakes
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Shree R
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Cards (21)
Stem cells can divide
endlessly
and
differntiate
into any cells
Animal blastocysts are
pluripotent
Human stem cell tissue is
multipotent
Morphogens
cause different
gene expressions
at different levels in early stage
Cell volume
determines
metabolic
requirements in unicellular organisms
Cell surface area
determines rate of exchange in unicellular organisms
As cells get
bigger
surface area and volume
increases
At
675nm
, red is the color of
light
visible
In midday hot sunny
grassland
, is the
limiting factor
for CO2
Complementary bases are joined by
hydrogen
bonds
5'3'
TO
3'5'
DNA antiparallel
A
proteome
is a protein produced by a
cell
/organism
Insulin forms 98 peptide bonds with
51
amino acids and
2
cysteine bonds
Haemoglobin consists of
4
polypeptides
Molecular motion
is necessary for a substrate molecule and
active site
to come together
Substrate molecule is large
limiting
its movement during interaction with
enzyme
Shape
of active site is not affected when
immobilizing
an enzyme
Aquaporins allow movement of
H2O
across cell membranes through
osmosis
from low to high solute concentration
A cell membrane can be
7.5
to
10
nm in width
Golgi apparatus has flattened membrane sacs called
cisternae
and they establish
quarternary
structure of proteins and package them into vesicles
Proteins synthesised by membrane bound
ribosomes
are often used in
lysosomes
Chloroplasts
: compartmentalization of enzymes and substrates of
Calvin
cycles in the stroma