B
because tRNA read the information from the mRNA to make the amino acid.
Answer:
3-Enzymes are biological catalysts
Sweat, tears, skin, and mucous membranes are among the physical defenses that keep a person from being sick.
<h3>What causes infectious diseases?</h3>
Coming into contact with a person or an animal who has the virus is one of the most straightforward ways to obtain the most contagious or infectious diseases. Direct contact, such as person-to-person contact, can transfer contagious diseases. Direct transmission of bacteria, viruses, or other germs from one person to another is the primary method by which contagious diseases are typically disseminated. If someone who is unaffected touches, kisses, coughs, sneezes, or has the virus or bacterium on them, this could happen. Additionally, these pathogens can disperse through sexual contact and the exchange of bodily fluids. The person who spreads the infection may only be a carrier and not exhibit any signs of the illness.
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Answer:
The invention of active drug loading method improves the encapsulation efficiency of some ionizable hydrophilic drugs (weak acid or weak base). The specific method is to construct pH gradient inside and outside the liposome, and then use the solubility difference of ionizable drugs under different pH conditions to realize the drug loading. With this method, the drug encapsulation rate can reach more than 95% and the drug loading can reach about 10%.
Explanation:
https://www.creative-biostructure.com/liposomes-in-drug-delivery-491.htm
If NaCl concentration is higher outside the cell than inside the cell, and the osmolarity of the cell is higher than that of the solution surrounding the cell then Overall, the cell will take up water because it is hypertonic.
- Osmosis is the transfer of a solvent from a region of lower solute concentration to a region of higher solute concentration through a semi-permeable membrane.
- The dissolved solutes—the sodium and chloride ions that make up salt—cannot traverse the barrier but the water in the surrounding solvent can enter the membrane.
- In these circumstances, water from the solute environment will cross the membrane to balance the solute content on each side.
- When there are more solutes outside the cell than inside it, an environment is said to be hypertonic for cells, and it is said to be hypotonic for cells where there are fewer solutes outside than inside the cell.
- There is no net water movement when solute concentrations are the same on both sides of the cell, and the cell is referred to as isotonic.
hence , here the cell is hypertonic thus the cell will take up water and swell but the solutes like NaCl will not enter the cell.
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