HORT 1120 Lecture Notes - Lecture 3: The Plant Cell, Light-Independent Reactions, Cell Division
20 May 2016
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Document Summary
Water (h20) which both we and plants need to survive. Plant cells are different from animal cells because they have a cell wall made of cellulose and chloroplasts which contain light sensitive pigments used to harness the power of the sun. The plant cell has an incredible membrane network that is used to exclude or include many ions and complex compounds. All the organelles are enclosed in very particular membranes and most of the complex reactions take place on or within the layers of these membrane surfaces. The light reactions are enclosed within the chloroplasts, but the dark reactions are transitory in the cytosol and then the respiratory reactions are enclosed within the mitochondria. The products of photosynthesis are stored within the plastids but waste products are enclosed within the vacuoles, bounded by the tonoplast membrane. Cell division and the multiplication of dna occur within the nucleus, but the whole cell is eventually completely replicated upon division.
