Answer:
Within double-stranded DNA, the nitrogenous bases on one strand pair with complementary bases along the other strand; in particular, A always pairs with T, and C always pairs with G. Then, during DNA replication, the two strands in the double helix separate.
Explanation:
The four nitrogenous bases of DNA are thymine, adenine, guanine, and cytosine. Guanine and cytosine are bound together by three hydrogen bonds; whereas, adenine and thymine are bound together by two hydrogen bonds. This is known as complementary base pairing.
Answer:
Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals. Cellular respiration begins in the cytoplasm of cells.
Explanation:
<span>The pairs would be:
1. increased surface area
</span>finely divided solute <span>
Increased surface area of the solute will make the solute </span>finely divided. Since the area of the solute that touches the solvent is higher. Since the area of work is bigger, then the work would be faster.<span>
2. like dissolves like
</span>matching polarity<span>
Like dissolve like because a matter tends to clump up with the same kind of polarity. Water is polar and will be a good solvent for a polar solute because they can form hydrogen bond which makes it easier to spread.
3. temperature
</span>rate proportional to kinetic energy
The temperature rate proportional to the kinetic energy, which makes the molecules move faster. A faster movement will make it spread easier. That is why higher temperature will result in higher solubility and faster rate of <span>dissolving
</span><span>
4. stirring
</span>spreads solute throughout solution
Stirring will help spread the solute. When the solution is not stirred, the solute that dissolved will be concentrated near the solute. This will decrease the rate of dissolving around it. Stirring help by moving the dissolved molecule away from the solute, makes the solute exposed more to the solvent.
Studying cells helps us to construct better medicines and vaccines, which is beneficial to understanding life.
