Draw a typical plant cell
State the function of: cell wall, cell membrane, nucleus, vacuole, cytoplasm, chloroplast & mitochondrion.
- Controls the shape of the cell
- Limits cell expansion
- Controls movement of substances in and out of the cell (it is
- Contains genetic information so controls cell processes
- Controls cell
- Stores waste products
Water entering a cell increases the water pressure in the cell so putting pressure onto the cell wall, creating cell turgor or turgidity.
- Enables substances to transported within the cell
- The SITE OF PHOTOSYNTHESIS in the cell
CHLOROPHYLLused as a
RESPIRATIONto release energy
Describe where cell division is located within the plant - apical and lateral meristems.
CELL DIVISION- The
ZONE OF CELL DIVISION-
MERISTEMATICcells DIVIDE - These are basic,
MERISTEMATIC cells are those with the power of division
APICAL MERISTEM: - In shoots (Buds) & - root tips Cell division. Zone of elongation – cells elongate giving growth. Zone of differentiation/maturation – layers of tissues form. Root hairs – produce a vast surface area for water and mineral uptake.
LATERAL MERISTEM: - Lateral (sideways) growth -
SECONDARY THICKENING- The
Cell division/responsible for secondary thickening, producing new xylem and phloem.
Vascular bundle in dicots – are the conductive bundles protected in sheaths of phloem/xylem/cambium – can be strengthening in the stem. (No cambium in monocots).
Describe how plants increase in size – cell division and enlargement (NO DETAILS OF MITOSIS ARE REQUIRED).
ZONE OF CELL DIVISION
CELL ELONGATION- The
ZONE OF CELL ELONGATION- The divided cells the ELONGATE
ZONE OF CELL ELONGATION
CELL DIFFERENTIATION- The
ZONE OF CELL DIFFERNTIATION- The elongated cells DIFFERENTIATE - The
DIFFERENTIATED CELLSform specialised
ZONE OF CELL DIFFERENTIATION
DIFFERENTIATED CELLS form specialised
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