biology 5090

• Cells are the building
• Animal cells consist of: Cell membrane, cytoplasm, nucleus, mitochondria, ribosomes
• Cell membrane: DESCRIPTION

  Made up of protein

  Seperates cell from the environment

  Partially permeable membrane

  Allows only smallmolecules to pass through
• CELL MEMBRANE: FUNCTIONS

  Controls movement of substances in and out of the cell
• CYTOPLASM: DESCRIPTION

  Organelles present such as: mitochondria ,ribosomes, chloroplast only in plant cell

  Jelly-like substance

  Contains mostly H2O and dissolved substances like sugars, proteins and salts
• CYTOPLASM: FUNCTION

  Place where chemical reactions occur
• NUCLEUS: DESCRIPTION

  Consists of a nuclear membrane also known as nuclear envelope and chromosomes

  Has pores that allow some substances to enter and leave the nucleus