B nucleic acids or c nucleotides
A portal of entry<span> is the site through which micro-organisms enter the susceptible host and cause disease/infection. Infectious agents enter the body through various </span>portals<span>, including the mucous membranes, the skin, the respiratory and the gastrointestinal tracts.</span>
Answer:
B) energy is captured in the bonds linking amino acids that compose lipase.
Explanation:
Anabolic reactions are chemically defined as synthesis reactions in opposition to Catabolic reactions, in which a degradation of chemical compounds occurs. Thus, in anabolic transformations simpler reagents are used to produce more complex substances. In the particular case of the synthesis of a lipase, a number of amino acids are chemically bonded to form a polymerized structure, clearly chemically more complex, known as polypeptide.
An increase in chemical complexity always requires an investment of energy, considering that building a larger molecule implies bonding more reagents or precursor into the final product. Thus, the increase in the energy content of the product (in this case the lipase) when comparing to each precursor (individuals amino acids) will be reflected in the linking (covalent) bonds between amino acids. Of course, there is always a certain amount of energy that is lost as heat during any chemical transformation (not all the energy invested in the synthesis will be captured in the product).
The overall of all anabolic reaction which take place inside the cell is called anabolism, while the whole set degradation chemical reaction occurring within the cell is known as catabolism. Being said that, it is clear that anabolism and catabolism, when being considered jointly, conform the metabolism as a whole and coordinated cellular process.
Answer:
The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.
Explanation:
