Answer:
Phospholipids are carried in the blood and deposited in vital tissues such as the brain and the liver where they serve as protection to these vital organs.
Explanation:
Lipids is another name for fats. These fats play many crucial roles in the body. Phospholipids are water soluble fats. They are important in building the protective barrier, or membrane, around body cells. In blood and other body fluids, these phspholipids usually form structures that enclose fat and carry it throughout the bloodstream to the organs where they are stored in the body.
These phospholipids also play an important role of serving as a protection to vital organs in the body such as the liver and brain. Hence, a large amount of phospholipids are found in the liver and brain where they serve as protection to these vital organs.
Explanation:
The compound 
is also known as carbon dioxide. It is a gas. It forms when one carbon atom combines with two oxygen atoms.
This can be illustrated as follows.
Consumption of carbon dioxide gas in very low concentrations is not harmful but consumption of its large concentration is very harmful as it can affect the respiratory system.
Answer:
HNO3(aq) + OH-(aq) → NO3-(aq) + H2O(l)
Explanation:
According to Bronsted-Lowry theory, an acid is a substance that donates a proton (H+) and produces a conjugate base while a base is a molecule or ion which accepts the proton.
An example of Bronsted-Lowry acid and base is Nitric acid, HNO3 and hydroxide ion, OH- respectively as shown in the given reaction.
Thus, the nitric acid acts as an acid by donating a proton to the hydroxide ion which accepts it, thus producing nitrate ion, NO3- as a conjugate base, while OH- produces H2O as a conjugate acid.
Those elements with similar properties are in the same column.
