Carbon dioxide is generated in tissues as a byproduct of normal metabolism. It dissolves in blood plasma to form carbonic acid (H2CO3); red blood cell (RBC) carbonic anhydrase catalyzes this reaction. Carbonic acid then spontaneously dissociates to form bicarbonate (HCO3−) and a hydrogen ion (H+). In response to the decrease in intracellular <span>pCO2</span>, more CO2 passively diffuses into the cell.
Cell membranes are generally impermeable to charged ions (i.e. H+, HCO3− ) but RBCs are able to exchange bicarbonate for chloride using the anion exchanger protein Band 3. Thus, the rise in intracellular bicarbonate leads to bicarbonate export and chloride intake. The term "chloride shift" refers to this exchange. Consequently, chloride concentration is lower in systemic venous blood than in systemic arterial blood: high venous pCO2 leads to bicarbonate production in RBCs, which then leaves the RBC in exchange for chloride coming in.<span>[2]</span>
Answer:
La química es la ciencia que estudia la composición, estructura y propiedades de la materia, así como los cambios que esta experimenta durante las reacciones químicas y su relación con la energía.
Explanation:
Answer: A niche is the role an organism plays in the ecosystem.
Explanation: A niche also determines how the organism interacts with other organisms in an ecosystem
Answer:
The nurse should give antihistamine or administer epinephrine. This is because the swollen tongue is a sign of allergic reactions(although not a sign of stroke) due to intake of Angiotensin-converting enzymes (ACE) Inhibitors, by the patients,needed to dilate the narrow blood vessels. The drugs increase blood flow, but this comes with an allergic reactions.In case the swelling is much, which might occlude air passage leading to respiratory distress,<u> intubation </u> with insertion of endotrachea tube (ET) through the mouth might be needed).to open the airways by connection to the ventilators,
Explanation:
Answer:
- It improves the growth of crops.
- It harms organisms that live in the oceans.
Explanation:
Fertilizers provide nutrients to plants, where the most needed nutrients in agriculture are nitrogen, phosphorus and potassium. Negative media coverage of the role of agriculture in pollution can make farmers feel guilty about the use of fertilizers. However, reducing fertilizer input can slow plant growth and exacerbate problems such as soil erosion. While it is important to be aware of the effects of fertilizers and use them with caution, it is also important for everyone to recognize that agricultural fertilizers are not the main source of pollution. If the plant uses all the nutrients and uses fertilizer wisely to prevent leaching, there is little chance of contamination.
Nitrate leaching from the soil poses a serious health risk and can contribute to soil acidification. When high levels of nitrogen are used, or when clover grass meadows fix significant nitrogen, nitrates inevitably seep out into groundwater where the water table is present, especially in sandy or well-drained soils. There is a possibility of entering. When this groundwater is used for domestic supply, leaching poses a serious health risk.
