<span>both excitation and inhibition</span>
Answer:
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Explanation:
How can we answer a question from a reading without seeing the text book?
Answer: Capillaries connect the arterial system — which includes the blood vessels that carry blood away from your heart — to your venous system. Your venous system includes the blood vessels that carry blood back to your heart. The exchange of oxygen, nutrients, and waste between your blood and tissues also happens in your capillaries.
Answer:
The correct answer is : C .It will decrease ATP production because fewer protons will be able flow down through ATP synthase.
Explanation:
- Oxidative Phosphorylation is a process which involves two steps:
- Transport of electrons from the reduced compounds like NADH (Nicotinamide adenine dinucleotide hydrogen) and FADH₂ (Flavin adenine dinucleotide dihydrogen) through the electron transport complexes, located in the inner mitochondrial membrane, to oxygen for the generation of water molecules.
- Synthesis of ATP or adenosine triphosphate from ADP or adenosine diphosphate and inorganic phosphate by an enzyme called ATP synthase which is located in the inner mitochondrial membrane. This enzyme harnesses energy by carrying protons from the inter-membrane space into the mitochondrial matrix and in the process produces ATP.
- Oxidative phosphorylation takes place in the mitochondria, especially involving the inter membrane space, inner membrane and mitochondrial matrix
- During the transport of electrons through the protein complexes (I, II, III, IV) of the electron transport chain a proton gradient is generated across the inner mitochondrial membrane.
- The proton gradient is such that the concentration of protons is more in the inter-membrane space and less in the matrix of the mitochondria.
- This proton gradient provides the energy to the ATP synthase for the synthesis of ATP.
- Dinitrophenol is responsible for making the inner mitochondrial membrane permeable to protons. As a result protons can directly diffuse through the inner mitochondrial membrane from the inter-membrane space into the mitochondrial matrix equalising the concentration of protons across the inner mitochondrial membrane. This causes distortion in the proton gradient. Hence, protons are no longer available for the ATP synthase to operate and synthesise ATP.
The Indies by sailing west across the Atlantic Ocean.
