Answer:
The correct answer is option c. "Enzyme lowers the activation energy".
Explanation:
The activation energy is defined as the amount of energy needed for a reaction to take place. Enzymes catalyze reactions by lowering the activation energy, which speeds up the reaction and increases its rate. Enzymes put a substrate in its active site, which facilitates the reaction and makes more likely that it collides with its subsequent substrate.
Each of pollan's chapters focuses on one particular plant and pollan suggests that each plant satisfies a specific human desire. The potato satisfies our desire for control – even more so now that we control its genes.
Though people might consider potatoes ordinary everyday fare, history demonstrates how crucial this vegetable is to humankind. Prior to the invention of the potato, conditions were challenging; many people, particularly in northern European nations, suffered from starvation and famine.
Malnutrition and starvation were eradicated in the countries that embraced the potato, and as a result, they grew stronger and more powerful. It is even conceivable that the potato spread resulted in a transfer of power from southern European nations to northern ones.
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The following are the disadvantages of sexual reproduction:
1. Sexual reproduction requires a male and female partner, without the two coming together reproduction can not take place. Getting a partner might be difficult if there is disparity between the number of males and females in the area.
2. Sexual reproduction takes time and energy. The process is labour intensive and time consuming. For example, the male animal needs to court the female animal and build emotional connection before copulation can occur. Not all copulations are successful at the first attempt, some animals may have to copulate several time before fertilization occur.
3. Sexual reproduction reproduce fewer offspring than asexual reproduction.
4. Sexual reproduction can prevent favourable genes from being passed to the offspring.
