Hydrolysis is equals to hydro which means water plus lysis which means splitting. Therefore, hydrolysis means splitting/breaking a chemical bond by the addition of water (H2O). More accurately, it is by the introduction of the elements that make up water which are hydrogen and oxygen. Simple example of hydrolysis reaction is an ester is hydrolyzed into an alcohol and a carboxylic acid. Condensation on the other hand is the opposite of hydrolysis. Condensation occurs when two Hydrogen and one Oxygen are LOST from a compound or compounds during the reaction. Most often this occurs when 2 reactants form one product were bond between them being formed by the concerted loss of water (H2O). Condensation example is an alcohol + a carboxylic acid -> ester + H2O.
Both mitochondria and ribosome are so tiny structure, it can not be seen under light microscope. It needs more magnification to study the detail structure, hence electron microscope is best to use.
<h3>What is ribosome ?</h3>
Ribosomes are small membrane less organelles and are the sites of protein synthesis.
It is present in are found in both eukaryotic and prokaryotic cells.
Ribosomes can either be present alone or in groups in cytoplasm while some ribosomes are attached to the endoplasmic reticulum called as rough endoplasmic reticulum.
These are composed of ribosomal protein and RNA, have two subunit larger and smaller subunit.
Learn more about ribosome, here:
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Answer:
X is negative heterotropic modulator
Explanation:
In allosteric regulations, modulators are molecules that causes a change in the conformation of an enzyme, hence, resulting a change in enzyme activity. It can lead to a decrease or an increase of the enzyme. When a molecule decreases the enzyme activity it called a negative modulator, when it increases or activates the enzyme activity, it is called a positive modulator.
A positive or negative modulator can either be homotrophic (substrate acts as modulator) or heterotropic (another ligand acts as modulator).
In the example above, X is negative heterotropic modulator, because the modulator is different from the substrate and it also decreases the enzyme activity.
<span>For a cell with nucleus to divide successfully, it needs to prepare for cell division by growing, accumulating nutrients needed for mitosis and duplicating its DNA. The duplicated DNA will eventually be distributed between the two new cells formed. The correct option is A.</span>
