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12 Cards in this Set
- Front
- Back
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Animal cells |
Mitochondria- they release energy out by respiration. Ribosomes- in this cell it's where the proteins are made Nucleus- it controls all the activities around the cell and also contains genetic information Cytoplasm- the jelly like substance where the chemical reactions takes place Cell membrane- it controls what goes in and out of the cell |
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Plant cells |
Plant cell has the same as animal cells but with 3 more Cell wall- made out of cellulose and its to make the cell be rigid. Chloroplasts- a process of photosynthesis, it contains a green pigment called chlorophyll; it absorbs light for photosynthesis. Permanent vacuole- contains cell sap |
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Yeast and bacteria cells |
They both have: Cell wall Cell membrane Cytoplasm Yeast has nucleus but for in bacteria cell it has genetic material also known as DNA not nucleus |
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Specialised cells |
A specialised cell is one that performs a particular function
Sperm cells- reproduction.
The eggs job is to carry the female dna and to nourish the embryo.
The sperms job is to securely carry the male's DNA to the females.
The long tail helps to move around the egg by using mitochondria as that releases energy by respiration.
And the streamlined head contains genetic information producing energy for the cell
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Specialised cells pt 2- Red blood cells |
-Promoted for to carry the oxygen to every cell in the body
Big surface area to absorb energy
Helps them move pass through the capillaries to reach the body cells
Red blood cells has no nucleus
It's packed with haemoglobins since there's no nucleus there's more space for room for it. *haemoglobins- the pigment absorbs energy |
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Specialised cells pt 3- palisade leaf cells |
specialised for photosynthesis
At the top of the cell it's where photosynthesis happens
it's packed with chloroplasts which absorbs light for photosynthesis
It has more surface area absorbing carbon dioxide from air in the leaf because the have tall sides
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Specialised cells pt 4- root hair cells |
They are specialised plant cells They absorb water and Minerals ions from soil Thin cell wall to absorb water from soil Has large surface area |
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Tissues |
The process of cells becoming specialised for a particular job is called differentiation A group of cells working together to do a particlar job is called tissues Different types of tissues: Muscular tissues: contracts the movement Glandular tissue: makes the substances like enzymes ( proteins that controls chemical reactions) and hormones (chemical messengers) Epithelial tissue: covers parts of the body |
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Organs |
A Group of tissues working together to do a particular job is called organs The stomach is an organ made of these tissues: muscular tissue: moves the stomach wall to churn up the food glandular tissue: makes digestive juices to digest food epithelial tissue: covers the outside and the inside of the stomach |
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Organ systems |
Group of organs working together to do a particular job is called organ system Digestive system is a organ system as it's made up of these organs: Glands (salivary glands & pancreas) - produces digestive juices Liver- produces bile which is secreted by the gall bladder Stomach- where the food is digested Small intestine - digested food molecules are absorbed. (they pass through the wall of the small intestine and into our bloodstream) Large intestine- when the water is absorbed from undigested food also known as faeces |
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Plant organs |
Stems- supports the plant and transports water from roots to the leaves
Leaves- where the main part of photosynthesis happens in
Roots- keeps the plant in one place and absorbs water |
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Plant tissues |
Mesophyll tissue: where most of the photosynthesis happens Xylem and phloem: they carry water and mineral ions around the plant Epidermal tissue: covers the whole plant |
