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The ABO blood group system is the most important blood type system (or blood group system) in human blood transfusion. The associated anti-A and anti-B antibodies are usually IgM antibodies, which are usually produced in the first years of life by sensitization to environmental substances such as food,

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[Biology Form 4] Animal Cell & Plant Cell >>> Pakej Pembelajaran & Penilaian Online <<< The cell is the basic unit of all organism. It is made up of a cell membrane that encloses the cytoplasm.Contained within the cytoplasm are not only the nucleus but also organelles, whose specific functions help the cell perform a range of activities.While plant and animal cells are similar, the plant cell has, in addition to the cell membrane, another boundary that separates it from its external environment. This is called the cell wall.As most plant cells carry out photosynthesis - the synthesis of organic substances - they contain chloroplasts.In plant cells, vacuoles also tend to be larger in size and smaller in number than those found in animal cells.Onion Skin CellCheek Squamous Epithelial CellsTypical Plant CellTypical Animal CellIn the laboratory, you have learned how to prepare a microscope slide of human cheek cells as well as the epidermal cells of onions.a) The differences you can observe between the two types of cells in term of the following:ShapeOnion cells have a regular shape while cheek cells have an irregular shape.Presence or absence of cell wallOnion cells have a cell wall while cheek cells do not.Presence or absence of vacuolesOnion cells have a large vacuole while vacuoles in cheek cells, if present, are small.b) Can you observe chloroplasts in the epidermal cells of onions? Explain your answer.No chloroplasts can be observed in the ep

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