Cell Structure and Cell Function (4)

Biology

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Characteristics of plasma membrane (1)

Outer membrane that surrounds the entire content of cell

Characteristics of plasma membrane (2)

Made of proteins and phospholipids

Characteristics of plasma membrane (3)

Thin and elastic film

Characteristics of plasma membrane (4)

Partially permeable

Function of plasma membrane (1)

Separates content of cell from the external environment

Function of plasma membrane (2)

Controls movement of substances into and out of the cell

Function of plasma membrane (3)

Allows exchange of nutrients, respiratory gases and waste materials between cells and their surroundings

Characteristics of lysosome (1)

Small spherical sac enclosed in a single membrane

Characteristics of lysosome (2)

Contains hydrolytic enzymes

Function of lysosome (1)

Hydrolyses complex organic molecules such as protein, nucleic acid and lipid

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