Answer:
Diffusion forces protons to travel through ATP synthase because the membrane is not permeable to protons
Explanation:
ATP synthase is the enzyme that allow the production of ATP from adenosine diphosphate. The ATP synthase allows is the protein found in the cell membrane, which allow protons to pass through the membrane.
The concentration gradient can be compared to diffusion of water where particles move from region of higher concentration to lower concentration through a permeable membrane
In this case, the concentration gradient will force the proton through the membrane , so that, the free energy can be used by ADP to produce ATP.
Answer: A
Explanation:
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If crossing over occurs only between two chromatids, these crossover chromosomes produce the recombinant gametes and the remaining two are similar to the parentals.
The answer is a
In the gastrointestinal system, ondansetron (Zofran), a medication, blocks serotonin receptors.
<h3>Does tea contain any drugs?</h3>
Caffeine is a stimulant substance that some people perceive to be addictive and is present in some varieties of tea. Although it has been suggested that regular tea consumption may be associated with signs of dependency in certain individuals, experts disagree on whether or not tea addiction actually qualifies as an addiction.
<h3>What does nicotine do?</h3>
The messages that are sent between the brain and body are sent more quickly thanks to the stimulant substance nicotine. Due to the fact that nicotine is the primary psychoactive component in tobacco products, the focus of this Drug Facts page will be on the consequences of nicotine use.
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Answer:
B. hydrostatic and osmotic pressure
Explanation:
The mass movement of fluids into and out of capillary beds requires a transport mechanism far more efficient than mere diffusion. This movement often referred to as bulk flow, involves two pressure-driven mechanisms: Volumes of fluid move from an area of higher pressure in a capillary bed to an area of lower pressure in the tissues via filtration. In contrast, the movement of fluid from an area of higher pressure in the tissues into an area of lower pressure in the capillaries is reabsorption. Two types of pressure interact to drive each of these movements: HYDROSTATIC PRESSURE AND OSMOTIC PRESSURE.
The primary force driving fluid transport between the capillaries and tissues is HYDROSTATIC PRESSURE, which can be defined as the pressure of any fluid enclosed in a space. Blood hydrostatic pressure is the force exerted by the blood confined within blood vessels or heart chambers. Even more specifically, the pressure exerted by blood against the wall of a capillary is called capillary hydrostatic pressure (CHP) and is the same as capillary blood pressure. CHP is the force that drives fluid out of capillaries and into the tissues.
The net pressure that drives reabsorption—the movement of fluid from the interstitial fluid back into the capillaries—is called OSMOTIC PRESSURE (sometimes referred to as oncotic pressure). Whereas hydrostatic pressure forces fluid out of the capillary, osmotic pressure draws fluid back in. Osmotic pressure is determined by osmotic concentration gradients, that is, the difference in the solute-to-water concentrations in the blood and tissue fluid. A region higher in solute concentration (and lower in water concentration) draws water across a semipermeable membrane from a region higher in water concentration (and lower in solute concentration).