Excess protein in the diet a. inhibits chemical reactions promoted by oxygen. b. decreases bulk in the stool. c. is changed into fat for energy storage. d. is stored in the liver for future use.

c. is changed into fat for energy storage.

Explanation:

Proteins, together with fats and carbohydrates, constitute one of the 3 macronutrients through which the body performs multiple functions and obtains energy to live. In addition, they are the main structural component of cells and body tissues and are necessary for multiple vital processes. Proteins cannot be stored as an energy reserve, so we must replenish them daily with the diet. Every day we replace most of our body's proteins. To maintain a proper balance, proteins synthesized from amino acids must restore those degraded by the body. If this balance is negative, it could lead to loss of muscle mass and decreased sports performance, among other consequences.

Proteins are made up of amino acids that serve as building blocks and stimulate protein synthesis in muscle. There are 2 types of amino acids: the non-essential amino acids that can be synthesized by our body and the essential amino acids that must be obtained from the diet.

The recommended protein intake for a sedentary adult is 0.8 to 1 gram of protein of high biological value per kg. body weight That equals approximately 15% of the total daily calorie intake.

When the protein is consumed in excess, it is usually stored as fat, while the surplus of amino acids is excreted. This can lead to weight gain over time, especially if you consume too many calories while trying to increase your protein intake

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.