Cell Biology 1
- Created by: SabihaHalim
- Created on: 12-10-20 18:52
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- Cell Biology
- Cell Structure
- Unspecialised Plant Cells
- All living things grow
- Two sorts of meristems
- Apical meristems
- tips of roots and shoots
- responsible for the change in the height of the plant
- Each specialized cell has a particular shape
- enables it to form a specific function
- Vascular tissue in a plant is made up of specialized cells
- These tissues make up plant organs
- xylem and phloem cells are both tubes are made up of cells stacked on top of each other
- They form plants transport system
- carries water, mineral ions and sugars
- They form plants transport system
- Vascular tissue in a plant is made up of specialized cells
- enables it to form a specific function
- Each specialized cell has a particular shape
- causes the root to push forwards through soil
- stem cells divide - some daughter cells elongate and differentiate to form specialized cells to create tissue
- lateral meristems
- change the girth of the plant
- New cells are produced by cell division
- the slightly older cells behind the meristem expand
- mainly lengthways by elongation
- lengthens root enabling it to push further into soil
- mainly lengthways by elongation
- the slightly older cells behind the meristem expand
- Apical meristems
- Two sorts of meristems
- Animals tend to keep growing until they reach adult size and then stop
- But many plants keep growing for their whole life
- Growth usually happens because of cell division (mitosis)
- In Plants, Cell Division only happens in tissues called meristems
- meristems contain undifferentiated cells called stem cells
- Because in meristem cells during cell division forms two undifferentiated cells that one stays undifferentiated and the other differentiates so meristems contain stem cells throughout the plants life
- meristems contain undifferentiated cells called stem cells
- In Plants, Cell Division only happens in tissues called meristems
- Newly formed unspecialised cells can differentiate
- can change into specialised cell so they have a particular function
- All living things grow
- Cell Differentiation
- Unspecialised Plant Cells
- Cell Structure
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