The right answer for the question that is being asked and shown above is that: "B. Proportional to the amount of food taken in by the cell" If energy is needed to remove a phosphate group from a chain in ATP, you can conclude that the energy needed for production must be p<span>roportional to the amount of food taken in by the cell</span>
A few enzymes<span> exhibit absolute </span>specificity<span>; that is, they will catalyze only one particular reaction. Other </span>enzymes<span> will be specific for a particular type of chemical bond or functional group. In general, there are four distinct types of </span>specificity<span>: Absolute </span>specificity<span> - the </span>enzyme<span> will catalyze only one reaction.</span>
Answer:
(B) Energy transfer between trophic levels is almost always less than 20% efficient.
Explanation:
The ultimate source of energy on the Earth is the Sun. The energy coming from the Sun is captured by green plants by the photosynthesis. During photosynthesis sun energy is fixed into chemical energy (carbohydrate). So, in an ecosystem energy flow is unidirectional (from sun to the green plants). The fixed chemical energy from green plants is transferred to the herbivores then to carnivores through food. When one organism eats another organisms, only 10 % of the energy present in the organism is transferred as a food for the next organism and a large amount of energy is lost as heat into the environment. Thus, energy keeps on decreasing when stored energy moves from producers to top consumers. Thus, less than 20% energy transfer limits the trophic levels in most of the ecosystem.
Anaerobically (in absence of oxygen), yeast cells may obtain energy by fermentation, resulting in the production of ATP, CO2 AND ETHANOL. This is called ethanol fermentation or alcoholic fermentation where sugars such as glucose, fructose, and sucrose is converted into cellular energy (ATP), producing ethanol and carbon dioxide as by products.
Answer:
a. His father's mother lacks a widow's peak.
Explanation:
To find out if you are homozygous or heterozygous, you need to find out the genotype of your parents. This you do by looking at their phenotype, their grandparents, uncles. After that it's easy to find out if it's homo or heterozygous. Of course, this need not even be done when it is a characteristic determined by recessive alleles, but in the case of a characteristic determined by dominant alleles, such as widow's peak (W), we must visualize the characteristic in the individual's country.
Since the man, shown in the question above, has widow's peak, so that your child knows if he is homozygous or heterozygous, just look at whether the trait is present in this man's parents. If his mother doesn't have widow's peak, we automatically know that the man is heterozygous, and that was his father's estate. However, if this man's mother has widow's peak and his father does, then the man is homozygous.
