Using Red Litmus Paper. Red litmus paper is dipped into a solution to establish whether a substance is acidic or alkaline. In an acidic or neutral solution, red litmus paper remains red. ... When an alkaline compound dissolves in water, it produces hydroxide ions, which cause the solution to become alkaline.
Answer:
The cornea
Explanation:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Answer: Hyperventilation syndrome
Carbon dioxide or CO2 is acid, so if the level of CO2 inside the blood decreased it will cause the blood become more alkaline. Carbon dioxide dumped when a person exhale, so if the rate of breathing increase it will reduce the CO2 level. Increased rate of breathing could be found in hyperventilation syndrome or panic attack.
Answer:
Some transport requires energy.
Not all materials that move in and out of a cell can do so by diffusion. For cells to carry out life functions, materials must often move from areas of low concentration into areas of high concentration. This process of moving materials against a concentration requires energy.
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