Please enable JavaScript.
Coggle requires JavaScript to display documents.
CELLS : - Coggle Diagram
CELLS :
Characteristics
Sensitivity
To detect stimuli
In the internal or external enviroment
And then to respond
Growth
A permanent increase
Dry mass
Size
By an increase in
Cell number
Cell size
Respiration
A chemical reaction
In cells
Breaking down nutrient molecules
To release energy
Nutrition
Taking in food
In order to obtain
Growth
Development
Energy
Movement
An action
By an organism
Resulting in a change in place
Excretion
Removal of
Waste products of metabolic reactions
Toxic materials
Reproduction
Making
More of the same kind
cell structure
Nucleus
Where genetic information is stored
DNA
Cytoplasm
A clear jelly
70% water
Many metabolic reaction take place
Vacuoles
Is a space containing a solution
Plants
Large vacuole
Containing cell sap
Animals
Contain smaller vacuoles called vesicles
Contain nutrients or water
They press outwards
On the cell
Chloroplast
Not found in animal cells
Contain a green color pigment
Chlorophyll
Absorbs energy from sunlight
Used in photosynthesis
Often contain starch grains
Cell wall
Mainly made up of cellulose
Criss - cross over one and other
Helps to
Support
Protects
Not in an animal cell
Fully permeable
Cell membrane
A thin layer of protein and fat
Controls what goes in and out of the cell
It is partially permeable membrane
Cells and organisms
Specialized cells
RBC
Found in the blood of mammals
For transportation of oxygen
Sperm and egg cells
Found in testes and ovaries
Fuse together to produce zycote
Palisade mesophyll cells
Found beneath the epidermis leaf
For Photosynthesis
Ciliated cells
Found in the lining of trachea and bronchi
For moving mucus upward
Root hair cells
For absorbing water and mineral
Found near the ends of plant roots