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27 Cards in this Set
- Front
- Back
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Nucleus |
Contains genetic information to control the cell |
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Mitochondria |
Reactions for respiration takes place which releases energy |
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Ribosomes |
Where proteins are made in the cell |
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Cell membrane |
Holds the cell together and controls what goes in and out
Substances can move in and out of the cell through diffusion
Only small molecules can diffuse through |
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Cytoplasm |
Where chemical reactions controlled by enzymes occur |
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Permanent vacuole |
Contains cell sap, a weak solution of sugar and salts |
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Cell wall |
Made of cellulose, supports and strengthens the cell |
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Diffusion |
Spreading out of particles from a high concentration to a low concentration
The bigger the difference in concentration, the faster the diffusion rate |
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Chloroplasts |
Contains chlorophyll for photosynthesis |
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Chloroplasts |
Contains chlorophyll for photosynthesis |
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Stomata |
Pores |
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Chloroplasts |
Contains chlorophyll for photosynthesis |
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Stomata |
Pores |
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Guard cells |
Open and closes the stomata
•sensitive to light so they close at night •when the plant has lots of waters, it fills the guard cells making the stomata open •when the plant is lacking in water, the guard cells become flaccid and close up |
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How Red Blood cells adapted to carry oxygen |
Large surface area to absorb oxygen, they absorb oxygen using haemoglobin |
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Sperm cell |
Carries male DNA to the female DNA
Contains lots of mitochondria to provide lots of energy
They have enzymes in their heads to digest through the egg cell membrane |
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Egg cell |
Carries female DNA and to nourish the developing embryo in the early stages
Contains huge food reserves to feed the embryo |
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What do plant cells have that animal cells don't? |
•cell wall •permanent vacuole •chloroplasts |
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What is a Specialised cell |
A cell that carried out a particular function |
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What is a Specialised cell |
A cell that carried out a particular function |
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What is cell differentiation? |
When an unspecialised cell turns into a specialised cell during the development of a multicellular organism |
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What is a Specialised cell |
A cell that carried out a particular function |
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What is cell differentiation? |
When an unspecialised cell turns into a specialised cell during the development of a multicellular organism |
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What are tissues formed of? |
Specialised cells |
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What is tissue? |
A group of similar cells that work together to carry it a particular function |
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What are the three types of tissue? |
•muscular •glandular •epithelial |
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What is an organ? |
A group of different tissues that work together to perform a certain function |
