true
When a molecule loses an electron the molecule has been ionized and oxidized.
The electron transport chain is also known as the respiratory chain. NADH carries electrons in the form of hydrogen atoms to the electron transport chain.
The molecule is an electron donating group.
The molecule that precedes the electron transport chain in both photosystem I and photosystem II is plastoquinone. Plastoquinone accepts electrons from the reaction center chlorophyll in both photosystems and transfers them to the cytochrome b6f complex to ultimately generate ATP.
The methyl group in a molecule is electron donating.
When a photon of light hits the photosystem II protein, it excites an electron within the chlorophyll molecule, causing it to jump to a higher energy state and leave the chlorophyll molecule. This electron is then passed down an electron transport chain to generate ATP and NADPH for use in the light-dependent reactions of photosynthesis.
No, it is a molecule.
One example of an electron carrier molecule is NAD+ (nicotinamide adenine dinucleotide). NAD+ is involved in redox reactions, acting as a carrier of electrons during cellular respiration to help generate ATP. It accepts electrons from substrates and becomes reduced to NADH, which can then donate the electrons to the electron transport chain for ATP production.
Oxidation in chemistry is when an electron is stripped from an atom or molecule. In this case, an electron is stripped from the phosphate group in ATP so it can be used for energy, hence oxidative phosphorylation. The electron then moves through several processes that generate energy the cell can use. That's why it is most commonly referred to as the electron transport chain.
Energy is transferred from pigment molecule to pigment molecule in the protein complex through resonance energy transfer, leading to excitation of a special chlorophyll a molecule called P680. This excitation of P680 causes the release of an electron, which is then transferred to the primary electron acceptor, initiating the electron transport chain in photosynthesis.
When a molecule gains an electron, it has been reduced.
A molecule with two bound atoms and one line electron pair