What are the 2 electron carriers in photosynthesis?

What are the 2 electron carriers in photosynthesis?

The light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis: the energy storage molecule ATP and the reduced electron carrier NADPH.

What is the function of the carrier molecule in photosynthesis?

The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast. Electron carrier molecules are arranged in electron transport chains that produce ATP and NADPH, which temporarily store chemical energy.

What are the four main molecules involved in photosynthesis?

There are four (4) types: a, b, c, and d. Chlorophyll can also be found in many microorganisms and even some prokaryotic cells. However, as far as plants are concerned, the chlorophyll is found in the chloroplasts. The other big molecules are water (H2O), carbon dioxide (CO2), oxygen (O2) and glucose (C6H12O6).

What do the ion carriers in photosynthesis transport?

The process of Photosynthesis produces ATP from ADP and Pi by using the energy from light to excite electrons that are passed along an electron transport chain. Coupled with the transfer of electrons is the pumping of hydrogen ions and the splitting of water molecules.

What is a carrier molecule?

1 A molecule that plays 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.

What is the electron carrier molecule called?

electron shuttles

Are carrier molecules proteins?

Carrier proteins are proteins that carry substances from one side of a biological membrane to the other. Many carrier proteins are found in a cell’s membrane, though they may also be found in the membranes of internal organelles such as the mitochondria, chloroplasts, nucleolus, and others.

What kind of molecules use carrier proteins?

Carrier proteins are responsible for the diffusion of sugars, amino acids, and nucleosides. They are also the proteins that take up glucose molecules and transport them and other molecules (e.g. salts, amino acids, etc.) inside the cell.

What is a carrier ion?

Definition. noun, plural: ion carriers. An ionophore that facilitates transport of ion through a hydrophobic medium, such as lipid bilayer of cell membranes, by binding to and shielding the ion to prevent the ion from getting in contact with the hydrophobic interior of the lipid bilayer.

What is osmosis in biology?

In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell’s partially permeable membrane.

Which molecule does not require a carrier?

Simple diffusion i.e. Movement of molecules from higher concentration to lower concentration does not require carrier molecule for transport through cell membrane.

Are carrier molecules required for osmosis?

This does not require any external energy but it does require carrier proteins and channels to allow passage through the membrane. 3. Osmosis: This is the transport of water through a selectively permeable membrane. This requires an input of energy and is accomplished through carrier proteins and channels.

Does passive transport require carrier molecules?

Passive Transport does NOT use energy to transport molecules across the membrane. This can also just be molecules diffusing across the permeable membrane or a direct channel which they can enter or exit.

What is a real life example of osmosis?

Movement of salt-water in animal cell across our cell membrane. Plants take water and mineral from roots with the help of Osmosis. If you are there in a bath tub or in water for long your finger gets pruned. Finger skin absorbs water and gets expanded.

What Osmoregulation means?

Osmoregulation, in biology, maintenance by an organism of an internal balance between water and dissolved materials regardless of environmental conditions.

What does a solute mean?

The solute is the substance that is being dissolved, while the solvent is the dissolving medium. Solutions can be formed with many different types and forms of solutes and solvents.

What is the law of osmosis?

The principle of osmosis states that when a semipermeable membrane separates two fluid spaces, water will flow from an area of lower solute concentration to one of higher solute concentration to achieve equilibrium so that the osmotic pressures are balanced.

What is osmosis in simple words?

1 : movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane.