The plasma membrane allows small or Membranes are partially permeable, uncharged perticles to pass trhough it; controlling what passes through them. protein channels and transporters control the passage of larger or charged particles Mitochondria are surrounded by two Membranes separate the cell membranes, isolate the reactions components from the cytoplasm and taking place inside from the reactions the outside. taking place in the cytoplasm. A substance produced by one cell docks Membranes are important in cell into a receptor in the plasma membrane of signalling. another, causing something to happen in the second cell. The membrane of the axon of a motor Membranes allow electrical signals to neurone transmits action potentials from pass along them. the central nervous system to a muscle. The inner membrane of a mitochondrian Membranes provide attachment sites contains molecules needed for the for enzymes and other molecules production of ATP. The inner membrane of involved in metabolism. a chlororplast contains chlorophyll needed for photosynthesis. Homework
Membranes are partially permeable, controlling what passes through them. The plasma membrane allows small or uncharged perticles to pass trhough it; protein channels and transporters control the passage of larger or charged particles Membranes separate the cell components from the cytoplasm and the outside. Mitochondria are surrounded by two membranes, isolate the reactions taking place inside from the reactions taking place in the cytoplasm. Membranes are important in cell signalling. A substance produced by one cell docks into a receptor in the plasma membrane of another, causing something to happen in the second cell. Membranes allow electrical signals to pass along them. The membrane of the axon of a motor neurone transmits action potentials from the central nervous system to a muscle. Membranes provide attachment sites for enzymes and other molecules involved in metabolism. The inner membrane of a mitochondrian contains molecules needed for the production of ATP. The inner membrane of a chlororplast contains chlorophyll needed for photosynthesis. Homework