DNA is found in the nucleus, mitochondria and chloroplast. 1. It is a reducing sugar. Proteins are the most abundant and most varied of the macromolecules having one or more polypeptides (chains of amino acids). The covalent bond that joins these two monosaccharide units is called glycosidic bond or glycosidic linkage. (d): Living organisms requires 6 elements in relatively large amounts. What are the most diverse molecules in the cell? Proteins may be simple or conjugated. 30. (c): Proteins show enormous diversity because of different proportions and sequences of twenty amino acid within the protein molecule. These are formed in Golgi apparatus in the process of glycosylation and are important components of plasma membrane in which they extend throughout the lipid bilayer. Cytochrome, phytochrome. (d) unbranched chain of glucose molecules linked by a-1, 4 glycosidic bond. 1. Multiple Choice Questions on Biomolecules. (a): Proteins are large-sized polymeric macromolecules having one or more polypeptides (chains of amino acids). The two purines are adenine and guanine. Welcome to Shareyouressays.com! TOS4. The heme group is a highly conjugated ring system (which means its electrons are very mobile) surrounding a metal ion, which readily interconverts between the oxidation states. Cellulose molecule is composed of 1600 to 6000 glucose molecules joined together. 19. Purines are the 9-membered double rings with nitrogen at 1, 3, 7 and 9 positions. Biomolecules include large molecules or macromolecules such as proteins, carbohydrates, lipids, and nucleic acids, whereas the smaller molecules or macromolecules include metabolites and natural products. In double helix of DNA, the two DNA strands are (a) coiled around a common axis ADVERTISEMENTS: (b) coiled around each other (c) coiled differently (d) coiled over protein sheath. It is known that the strength of covalent bond is inversely related to the atomic weights of the bonded atoms. 11. 28. Free PDF Download of CBSE Chemistry Multiple Choice Questions for Class 12 with Answers Chapter 14 Biomolecules. (a) DNA is single stranded in some viruses. 29. The purines (adenine and guanine) in DNA and RNA are the same. 14. c) coiled over protein sheath. A large number of permutations and combinations of this amino acid are responsible for the unlimited variety of proteins. 35 Questions with Answers and Explanations on “Biomolecules” for Biology Students. 22. Koshland’s theory of enzyme action is known as, 10. It is a long, double” chain of deoxyribonucleotide, or deoxyribotide, units. Functionally proteins may be structural protein, enzymes, hormones, respiratory pigment etc. Biotechnology quiz, biology worksheets, plants and animals quiz, biochemistry quiz. Download free pdf of Biology MCQ for NEET Chapter-Biomolecules d) coiled around each other. Which of the following nucleotide sequences contains 4 pyrimidine bases? 9. 17. Phosphorus is important constituent of nucleic acids, sulphur and nitrogen constituent of amino acids. Biomolecules MCQ Quiz | Biology Multiple Choice Quizzes. Thymine (T) and cytosine (C) are found in DNA and cytosine (C) and uracil (U) is found in RNA. (b): Cellulose is the most abundant carbohydrate. Biomolecules Important Questions and Answers Question 1. Here you can get Class 12 Important Questions Chemistry based on NCERT Text book for Class XII.Chemistry Class 12 Important Questions are very helpful to score high marks in board exams. 19. 30. What is ‘Antecedent Debts’ under the Hindu Law? ATP is a nucleotide as it is composed of adenine, ribose sugar and phosphoric acid. MCQ On Biomolecules Biomolecules are the molecules or ions present in an organism that are essential for the biological processes such as growth, development, cell division, etc. Each deoxyribonucleotide unit, in turn, consists of three different molecules: phosphate, (P034), a 5-carbon deoxyribose sugar (C3Hi0O4) and a nitrogenous base. (d): DNA is the largest macromolecule in the organisms. 1. Essay on Leadership: Introduction, Functions, Types, Features and Importance. Chloride ion enhances activity of salivary amylase. 21. (d): Water is the most abundant substance of living beings. Cu, with variable valency. 4. About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and. Published by Experts, The Revolutionary Movement in India – Essay. The movement of the nutrient element through the biosphere is called the biogeochemical cycle. Lipoproteins are protein complexed with lipids like triglycerides, phospholipids etc. 12. The chains are unbranched and linear. b) coiled differently. Here we have covered Important Questions on Biomolecules for Class 12 Chemistry subject.. Chemistry Important Questions Class 12 are given below.. Some such as N, O, and C are also present in the atmosphere. Cellular micromoleules are. 14. The water content of actively living cells varies between 60-95%. Which is distributed more widely in a cell? The most common secondary structure of proteins is, 9. 12. B. Polyamides. Which of the following have carbohydrate as prosthetic group? Students can solve NCERT Class 12 Chemistry Biomolecules MCQs Pdf with Answers to know their preparation level. Other elements are present in very lesser amount. MCQ Questions for Class 11 Biology with Answers were prepared based on the latest exam pattern. Its one complete turn is 34A° long and has 10 base pairs. (d): Amino acids are mostly synthesized from a-ketogluaric acid. ATP. The nitrogenous bases may be purines or pyrimidines. (c): Nucleotide is an organic compound consisting of a nitrogen-containing purine or pyrimidine base linked to a sugar (ribose or deoxyribose) and a phosphate group. proteins. (c): Carbon, hydrogen, oxygen and nitrogen are called four big elements of living body they make up about 99% of the mass of most cells. Water present. Nucleotides are phosphorylated nucleosides with are formed by condensation of pentose, sugar, nitrogen base and at least one phosphoric residue. Question 2. Latest questions to expect in Jee Mains | NEET | School Exams. The total number of nucleotides present in the segment is. 8. Galactose is a reducing sugar. 26. (a): According to Watson-Crick model, the DNA molecule […] Nucleotides are building blocks of nucleic acids.