Biological Molecules | Past NTS Sindh Mdcat from Sindh Textbook Board | mosaicbro.com

Biological Molecules | Past NTS Sindh Mdcat from Sindh Textbook Board

7 of 29 questions (Page 1 of 5)

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1 How many different types of amino acids are found? (1998)
Correct Answer: A
Explanation: There are 20 standard amino acids that are commonly found in proteins.
2 Glucose is a good source of energy because (1999)
Correct Answer: B
Explanation: Glucose is a good energy source because its carbon-hydrogen bonds store energy that can be released during metabolism.
3 Which of the following is not a lipid (1999)
Correct Answer: B
Explanation: Peptides are short chains of amino acids and are not classified as lipids.
4 Which of the following compound is a protein (1999)
Correct Answer: D
Explanation: Hemoglobin is a protein responsible for transporting oxygen in the blood.
5 How many kinds of nucleic acids are found in protoplasm (1999)
Correct Answer: C
Explanation: The three main types of nucleic acids in protoplasm are DNA, RNA, and ATP.
6 The lipid molecule is composed of glycerol and fatty acid molecules in a ratio of (lumhs 2005)
Correct Answer: C
Explanation: A typical lipid molecule (triglyceride) consists of one glycerol molecule and three fatty acid molecules.
7 Glycogen is a carbohydrate which is (lumhs 2006)
Correct Answer: C
Explanation: Glycogen is a polysaccharide that serves as a form of energy storage in animals.
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