What is the role of b cells in the human immune system? a) the production of antibodies b) the destruction of lymphocytes c) the production of white blood cells d) movement to the thymus gland to build t cells

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.