Biomolecules—Biology MCQS for MHT-CET Exam 2023
Get Multiple Choice Questions and Answers for the Maharashtra Common Entrance Test (MHT-CET exam 2023 preparation). The given MCQ questions are based on Biomolecules – Biology Topic. Read the chapter carefully before solving MCQS. Find below the important MCQS for the chapter, Biomolecules, as per the MHT CET Biology syllabus. This is helpful for candidates of MHT CET during the last-minute revision. Important MCQS notes for the MHT CET Biology-Biomolecules topic, which are useful for the exam, are given below.
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1. The molecules which are complex organic compounds which carry out the metabolism of living organisms are called __________.
A. Biomolecule B. Molecule C. Atom D. Molecule.
Answer: The Answer is A; All metabolism is carried out by complex organic compounds called biomolecules.
2. Which of the following are examples of biomolecules?
A. Carbohydrates B. Protein C. Nucleic acid D. All of these
Answer: The Answer is D, all of these, as these are all the biomolecules that contribute to the metabolism of living organisms.
3. The compounds that are made up of 2 or more than two sugars are called ——–.
A. Lipids B. Polysaccharides C. Monosaccharides D. Fats
Answer: The Answer is B. When 2 or more sugars come together and form a compound, it is called a polysaccharide.
4. ———- is the monomer of protein.
A. Fatty Acid B. Monosaccharide C. Amino Acid D. Nucleotide
Answer: The Answer is C. Amino acids are the monomers of protein. When more than 2 amino acids come together, they form a biomolecule called a protein.
5. —— is the smallest unit of genetic material.
A. Gene B. Allele C. Sugar D. Phosphoric Acid
Answer: The Answer is A, as the gene is the smallest unit or part of the genetic material.
6. Which of the following are examples of non-reducing sugar?
A. Raffinose B. Sucrose C. Trehalose D. All of these
Answer: The Answer is D; all of these are examples of non-reducing sugars, as these sugars do not have a free aldehyde or ketone groups.
7. ——— are examples of reducing sugar.
A. Lactose B. Glucose C. Galactose D. All of these
Answer: The Answer is D; all of these sugars are reducing sugars.
8. DNA is made up of —— components.
A. Nitrogen base B. Sugar C. Phosphoric acid D. All of these.
Answer: The Answer is D, as DNA is made up of 3 components, such as nitrogen base, sugar and phosphoric acid.
9. ———- is defined as the sugar that contains a free aldehyde or ketone group.
A. Reducing sugar B. Non-reducing sugar C. Both of these D. None of these
Answer: The Answer is A; reducing sugars are those sugars which contain a free aldehyde or ketone group.
10. Lipids are insoluble in water and soluble in ———–.
A. Alcohol B. Ether C. Both A and B D. None of these
Answer: The Answer is C; lipids are nothing but fats, which are insoluble in water but soluble in organic solvents.
11. Invert sugar is made up of ——– and ———–.
A. Glucose and Fructose B. Glucose and galactose C. Fructose and Galactose D. None of these.
Answer: The Answer is A, invert sugar, also called sucrose, which is made up of glucose and fructose.
12. Which of the following are negatively charged amino acids?
A. Aspartate B. Asparagine C. Glycine D. Alanine
Answer: The Answer is A; Aspartate is a negatively charged amino acid, and the others are neutral amino acids.
13. ———– used as an artificial sugar sweetener.
A. Sucrose B. Aspartame C. Glucose D. All of these.
Answer: The Answer is B. Aspartame is an artificial sweetener that is 100 times sweeter than natural sugar.
14. Which of the following nitrogen bases is present in DNA and not in RNA?
A. Adenine B. Cytosine C. Thymine D. Uracil
Answer: The Answer is C; thymine is present in DNA and not in RNA.
15. Nucleoside is made up of ———.
A. Nitrogen base B. Sugar C. Both A and B D. None of these
Answer: The Answer is C; a nucleoside is made up of a Nitrogen base and Sugar.
16. ——— are the types of nitrogen bases.
B. Purine B. Pyrimidine C. Both A and B D. None of these
Answer: The Answer is C; both purine and pyrimidine are types of nitrogen bases.
17. Which of the following sugars is a monosaccharide?
A. Glucose B. Fructose C. Galactose D. All of these.
Answer: Answer is D; all of these sugarsare made up of only one sugar.
18. ——– is an example of a disaccharide.
A. Lactose B. Glucose C. Galactose D. All of these
Answer: The Answer is A; lactose is made up of glucose and galactose.
19. Starch is made up of ———.
A. Amylose B. Amylopectin C. Trehalose D. Both A and B.
Answer: The Answer is D; starch is made up of 2 components, such as amylose and amylopectin.
20. ———– is a bond present in carbohydrates.
A. Glycosidic bond B. Ester bond C. Ether bond D. Both A and C.
Answer: The Answer is D, glycosidic bond, also called an ether bond, which is present in sugar.
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