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Biology
Cells
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Gabrielle wilson
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Cards (28)
What is the
resolution
of a microscopic?
The ability of a microscopic to
distinguish fine detail of a image
Why is electron microscope used instead of a light microscope
An electron microscope has a
higher
resolution
What equation is used to
calculate
magnification?
Magnification
=
image
/
actual
Where in
cell
would u
find chromosomes?
Nucleus
What is the function of the nucleus?
Control all
cell activities
Function of chromosome?
threadlike
structure found in
nucleus.
Made of
dna
Function of cytoplasm?
Chemical reactions
take place here
Function of mitochondria?
site of
cell respiration.
function of
membrane
?
Allows
things to
enter
and
leave
cell
Function of
nuclear membrane?
surrounds nucleus
Function of cell wall?
supports
the
cell
Function of large vocuole?
contain cell sap
Function of chloroplast?
Contains chlorophyll
,
a green pigment that traps light for photosynthesis
What is stem cell?
A
cell
that
divide
and become
any
type of
cell
Source of embryonic stem cell..
Umbilical cord
Souce of adult stem cell..
Bone marrow
Where are stem cells found and plants?
meristem
at the apices of
root
and
stem
What is a clone?
Genetically identical
cells
What is specialised cell?
sales with
structures
that
adapt
to a particular
function
What is leukaemia?
cancer
of
white blood cells
Where are white blood cells produced?
Bone marrow
Describe the two stages of the treatment of leukaemia using stem cells
First using
chemotherapy
and
radio station
to
destroy
the cancerous wbc. Second stage transparent of bone marrow stem cells.
List the risks involving leukaemia treatment
Chemotherapy and radiotherapy destroy the patient healthy WBC to leave them with no immune system. Transfer of diseases or viruses from other animals.
What’s Pier Review?
Process of validation works scientist, review research
and
provide feedback
Rearrange system, Organ, cell, orgaisms, tissue starting with small
Cell, tissue, organ, system, organism
What is diffusion?
Movement
of
molecules
from a
high
concentration to a
low
concentration
Give examples of substances transported by diffusion
Oxygen
,
carbon dioxide
,
water
,
dissolved nutrients molecules
What is three factors of the fact of the rate of diffusion
Temperature
,
surface area
and
concentration gradient