Could any one explain these three biology terms to me?

What does Photosystems, Photosynthetic membranes and electron carriers mean?

3 Answers

  • 1 decade ago
    Favorite Answer

    A photosystem is a sytem that uses light energy to excite electrons, a photosynthetic membrane would be a membrane with a photosystem in it. electron carriers are molecules which will readily accept an electron from one molecule and transfer it to another. This is how the electron transport chain works, through the shuttling of electrons from one electron acceptor to another. Each consecutive one has a lower energy state than the previous one.

  • Joanna
    Lv 4
    5 years ago

    That's a straw man, the bones in bird's wings have the same basic design as the fore limbs of other animals (including us), so it only takes some modifications not a whole new collection of bones. Also the number of bone's that birds have in wings vary according to species, so the 6 and only 6 bones for a bird to fly is a fallacy. Bird flight is a lot more flexible than you give it credit. I know people with 6 toes on each foot with no ill effect, it's a mutation that occurs in some people from the eastern Mediterranean. So bone modifications aren't as rare as you may think.

  • Anonymous
    1 decade ago

    Go to It is very helpful

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