Answer:
Facilitated diffusion
Explanation:
Oxidative phosphorylation, involving the Electron transport chain and Chemiosmosis is the third stage of cellular respiration. The main purpose of the ETC is to build an electrochemical (electrical and concentration) gradient across the inner mitochondrial membrane. It does this by using energy to pump protons (H+ ions) from the matrix to the inter-membrane space of the mitochondria.
Facilitated diffusion, also known as passive transport through channels, is a form of facilitated transport involving a passive movement of molecules along their concentration gradient, through channels called membrane proteins.
During Chemiosmosis of Oxidative phosphorylation, protons (H+) flow back down their concentration gradient (from inter-membrane space to matrix) due to the chemiosmotic gradient that has been formed in ETC. However, hydrogen ions (H+) cannot pass through the inner mitochondrial membrane except through an enzyme (protein) found in the inner mitochondrial membrane called ATP synthase. This protein acts as a machine powered by the force of the H+ diffusing through it, down an electrochemical gradient. This movement of H+ via ATP synthase further catalyzes the conversion of ADP to ATP.
It is an example of facilitated diffusion because H+ ions are diffusing across the inner mitochondrial membrane (from inter-membrane space to matrix) via a protein channel or membrane protein called ATP synthase.
The movement of H+ through the ATP synthase is best described as an example of chemiosmosis, which involves the movement of ions across a membrane through a specialized protein channel to generate ATP.
The movement of H+ through the ATP synthase is best described as an example of chemiosmosis. Chemiosmosis is the movement of ions across a membrane down their electrochemical gradient through a specialized protein channel like the ATP synthase. This process generates ATP, the energy currency of the cell.
#SPJ3
Answer:
Explanation:
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B. phototropism.
C. gravitropism.
D. thigmotropism.
Answer:
The answer is D.
Explanation:
also explain the answer plss
Answer: Line A is the enzyme, and Line B is the no enzyme
Explanation:
The reaction rate of a chemical reaction is greatly impacted by the presence of an enzyme. Enzymes are biological catalysts that speed up the chemical reaction by lowering the activation energy required for the reaction to occur. Without an enzyme, the reaction rate may be slow or even non-existent, whereas with an enzyme, the reaction rate can be significantly increased.
In order to compare the reaction rate with and without an enzyme, a graph can be plotted with time on the x-axis and the amount of product formed on the y-axis. The reaction without the enzyme would have a slower rate of product formation and would result in a lower slope on the graph. On the other hand, the reaction with the enzyme would have a sharper rate of product formation and would result in a steeper slope on the graph.
It is important to note that the reaction rate with an enzyme can only be increased up to a certain point, as the enzyme can become saturated with substrate molecules. At this point, the reaction rate will plateau and adding more substrate will not increase the rate of product formation.
Understanding the role of enzymes in chemical reactions is crucial in fields such as biochemistry and pharmacology, as many drugs and therapies work by targeting specific enzymes in the body. By manipulating the activity of enzymes, scientists can alter the rates of chemical reactions and ultimately impact physiological processes.
Stratosphere is the right answer.
As light is seen in the stratosphere, so as the cloud formation is rare in this zone. Though this zone also has complicated wind regularities, drastic storms don't befall there. Due, to this reason why the airline pilots prefer to operate in the stratosphere. The turning on or off the seat-belt depends on the pilot. If a pilot thinks that requirements are, or are expected to be, such that tourist move professes a threat, the combined seat belt symbol is illuminated. Precisely when those requirements are present is up to the pilots' responsibility.