Light energy is transferred to a chlorophyll reaction center where electrons become energized.
- A protein in the electron transport chain, pumps H+ ions from the stroma into the thylakoid space
- Electrons from the electron transport chain close to photosystem II replace the elctrons lost in photosystem I
- Electrons from Photosystem I become energized and escape photosystem I and move down the second electron transport chain.
- H+ ions flow down the concentration gradient through a channel in ATP Synthase, releasing energy in the process
- Electrons move down the electron transport chain, releasing energy
- Electrons move to an electron acceptor in the electron transport chain and electrons in photosystem II are replaced by the splitting of a water molecule
- Photosystem II receives photons in the form of light energy
- Water is split to replace the electrons in photosystem II
- At the end of the electron transport chain, the energized electrons and an H+ ion are used to reduce NADP+ to NADPH
- ATP uses energy to add a phosphate to ADP forming ATP
Answer:
c.) The mucosa consists of a particularly vascular epithelium that facilitates efficient repair and renewal
a.) The tissue lining the stomach is an epithelium and thus capable of repair and renewal
Explanation:
The cells that form the lining of the stomach are deemed to wear out regularly due to the regular food intake they handle.
Due to this constant wearing, this cells have a mechanism of rejuvinating in order to handle their work.
That can be true. Everyone (mother) is different. That usually goes away after nursing for awhile.
A beacause not everything happens to all cells
