Answer:
The correct option is : c) Glycerophospholipids
Explanation:
The lipid bilayer of the plasma membrane is composed of glycerophospholipids, sphingolipids and sterols.
The sphingolipids are the derivatives of sphingosine. Whereas, <u>the glycerophospholipids are the derivatives of </u><u>phosphatidic acids</u>.
Phosphatidic acid are the phospholipids that give one glycerol molecule, one molecule of phosphoric acid and two fatty acids molecules on hydrolysis.
<u>Therefore, Phosphatidic acid is a precursor of glycerophospholipids.</u>
Answer:
Option (B) Ethylene gas is a chemical signal through which ripening fruits trigger the ripening process in other fruits.
Explanation:
The ethylene hormone triggers the ripening process of fruit. However, in order to slow down the ripening process the action of ethylene is to be blocked. All fruits are capable to produce ethylene up to a certain level after which they start ripening. There are some classes of fruits that respond to the external ethylene such as apple, mango, tomato etc.
Hence, option B is correct
Answer:The only difference between a molecule of a compound and a molecule of an element is that in a molecule of an element, all the atoms are the same. For example, in a molecule of water (a compound), there is one oxygen atom and two hydrogen atoms. But in a molecule of oxygen (an element), both of the atoms are oxygen.
Explanation:hope this helps
