Cell Structure Flashcards
Description and function of nucleus
The largest organelle. Controls the activities of the cell. Contains chromosomes carrying genetic information in units called genes.
Description and function of cell surface membrane.
A selectively permeable barrier between the internal and external environment of the cell. Permits the entry and exit of some molecules.
Description and function of mitochondria
Site of some chemical reactions of respiration.
Description and function of cell wall
Structural support in plant cells. Composed of carbohydrates cellulose.
Description and function of vacuole
A membrane-bound compartment within the plant cell containing a store of solutes.
Description and function of chloroplast
Site of chemical reactions of photosynthesis. Contains green pigment chlorophyll, which absorbs light energy.
Example of specialised cell and it’s adaptations?
Sperm cell- has a long tail to aid movement, contains paternal DNA
List the levels of organisation
Cells, tissues, organs, organ systems, whole body
Description and function of a cytoplasm
A complex mix of structures dissolved molecules and water, many chemical reactions take place here.
