Biomolecules

Different functions of biomolecules include storing genetic information (by nucleic acids), providing energy (by carbohydrates), and building and repairing tissue (by proteins).

Sucrose D (+) glucose + D (-) Fructose

  $\left[\alpha \right]=+66.5°\left[\alpha \right]=+52.5°\left[\alpha \right]=-92.8°$

Thus rotation changes from positive to negative after hydrolysis. Due to this reason hydrolysis of sucrose is known as inversion and mixture after hydrolysis is known as invert sugar.

Therefore option (B) is correct.

The number of >C = 0 groups in tripeptide is 0 .

Key point: Fehling solution do not oxidise aromatic aldehydes, except when EWG present 
at O/P position So (I), (III), (IV) not show this test

Kiliani Fischer method is for upgradation of C-chain.

There are various types of enzymes, including lyases, ligases, isomerases, hydrolases, oxidoreductases, etc. To know about the types of enzymes in detail, refer to the article.

Enzymes found in human bodies are 

• Lipases: They remove the fats in the gut.

• Amylase: It is present in the saliva. The role of amylase is to break down carbohydrates.

• Maltase: These enzymes are found in the small intestine. It breaks down the sugar maltose into glucose. 

• Trypsin: These enzymes are present in the small intestine. The function of trypsin is to break proteins into amino acids.

• Lactase: The function of lactase is to break down lactose into simpler sugars (glucose and galactose). Lactose is the sugar that is found in dairy products.

We can define enzymes as biocatalysts. It is important in biological processes like digestion, metabolism, and the synthesis of cellular components. If enzymes stop their functions, then the body can not generate enough proteins, which is important for survival. The examples of enzymes are lactase and amylase.

Biomolecules in class 12 Chemistry include the following important topics: classification and structure of carbohydrates, amino acids, and proteins, enzymes and their characteristics, nucleic acids (DNA and RNA structure and components), and vitamins.

You must also prepare the following topics that are frequently asked in exams: zwitterion structure in amino acids, enzyme action mechanisms, and differences between DNA and RNA.