Term
| Describe specialisation in cells |
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Definition
| A process whereby cells have changed their shape or metabolism to carry out a particular function (i.e. job). |
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Term
| Summary of the body organisation |
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Definition
| Specialised cells -tissues - organs - systems |
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Term
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Definition
| A group of cells of the same type. |
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Definition
| Different tissues working together to do a job. |
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Term
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Definition
| Circulatory, respiratory, reproductive etc… |
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Term
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Definition
| Cells which give rise to specialised cells. |
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Term
| What can happen to a stem cell went it divides? |
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Definition
| It can either produce more stem cells or produce a different type of cell. |
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Term
| What are stems cells needed for? |
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Definition
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Term
| Give examples of the use of stem cells in medicine |
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Definition
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Term
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Definition
| The region of a plant where cells divide. |
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Term
| What are the two types of meristems, where are they found, what is their job? |
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Definition
Apical meristems: in buds and at the tip of roots. They are responsible for growth in length.
Lateral meristems: inside shoots and roots of woody plants, forming a ring. They are responsible for growth in girth. |
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Term
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Definition
Type of cell: Root hair cell
Function: Absorbs water and mineral from the soil
Adaptations: Long 'finger-like' extension with very thin wall, which gives a large surface area. |
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Term
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Definition
Type of cell: Palisade cell
Function: Site of photosynthesis
Adaptations: Contains lots of chloroplasts |
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Term
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Definition
Type of cell: Sperm cell
Function: reproduction/ fertilization of the egg
Adaptations: has a tail to swim and many mitochondria to release energy. |
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Term
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Definition
Type of cell: Egg cell
Function: Reproduction/being fertilized by the sperm cell.
Adaptations: large cell containing food reserves. |
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Term
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Definition
Type of cell: Red blood cell
Function: carry oxygen
Adaptations: contains haemoglobin to carry oxygen, large surface area to allow diffusion, flexible to go through capillaries. |
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Term
| Give 3 examples of plant tissues formed after cells specialise. |
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Definition
- Xylem
- Phloem
- Epidermis |
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