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Levels of organisms
- Organelles
- The nucleus contains the
genetic material(chromozones
and DNA). it controls the cell's
activities and has its own
membrane
- Cell membrane controls
what comes in and when
leave the cell.
- Cytoplasm, this is the gel-like substance
where most reactions occur, it contains
enzymes
- The nucleus contains the
genetic material(chromozones
and DNA). it controls the cell's
activities and has its own
membrane
- organisms in plant cells
- Chloroplasts are where photosyntheisis occurs, it is responsible for making food and
energy for the plant. inside the chloroplast are chlorophyll, this is the part that actually is
used in photosyntheisis
- The cell wall, this is resposible for keeping the cell
rigid and is made of cellulose. it gives the cell support
and strengthens it.
- Vacuoles are a large organelle taking up most of the
space inside the cell, it contains cell sap which is a
solution of sugar and salt. it also helps to support the
cell
- Chloroplasts are where photosyntheisis occurs, it is responsible for making food and
energy for the plant. inside the chloroplast are chlorophyll, this is the part that actually is
used in photosyntheisis
- Special Cells
- Cells don't always look the same, most are specilised to do specific jobs or functions so structures vary
- Examples of this are red blood
cells which do not have
nucleuses so that it can carry
more oxygen
- Cells don't always look the same, most are specilised to do specific jobs or functions so structures vary
- Groups
- A group of similar cells is called a tissue, these cells work
together in order to perform a particular function. a
tissue can contain more than one type of cell
- Tissues are organised into organs, an
organ is a group of tissues working
together in order to perform a function
for example lungs and leaves
- A group of organs is called an organ group, an organ
group is a collection of organs working together in
order to do a job, for example the digestive system is
a collection of organs that work together to digest
food
- A group of similar cells is called a tissue, these cells work
together in order to perform a particular function. a
tissue can contain more than one type of cell
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