light reaction
Light
Photosynthesis.
The reaction that requires direct energy of sunlight to make energy carrier molecules is light reaction. The dark reaction that occurs when the products of the light reaction are used to form C-C covalent bonds of carbohydrates.
NADH and ATP
It requires energy, and a protein carrier molecule. The large particle binds to the protein carrier on the inside of the cell. It is then transported across the membrane as a result of a conformational change in the protein (think of it flipping), and then it is released on the outside of the cell. Again, this requires some source of energy.
It requires energy, and a carrier protein. The large particle binds to the carrier protein on the inside of the cell. The protein then changes conformation, thus moving the particle to the outside, where it is dropped off by another conformational change in the protein.
Photosynthesis.
light
The reaction that requires direct energy of sunlight to make energy carrier molecules is light reaction. The dark reaction that occurs when the products of the light reaction are used to form C-C covalent bonds of carbohydrates.
Carrier molecules are not involved.Different between chemical potential leads the diffusion
Hemoglobin molecules function as the carrier in the human blood circulation system.
Carrier molecules are molecules that play a role in transporting electrons through the electron transport chain. Carrier molecules are usually proteins bound to a nonprotein group; they can undergo oxidation and reduction relatively easily, thus allowing electrons to flow through the system. There are four types of carrier: flavoproteins (e.g. FAD), cytochromes, iron-sulphur proteins (e.g. ferredoxin), and ubiquinone.
carrier molecules
two processes requiring the use of protein carrier molecules?
to make energy-carrier molecules like NADPH Apex
No,the movement of molecules through diffusion does not use energy.Diffusion is just the movement of molecules from a region of higher concentration to a region of lower concentration.It is of two types-simple and facilitated;facilitated one is mediated by a carrier which is probably some protein.
the receptors on the protein carrier recognise glucose allowing it to enter the cell :)
no