Question 5 : Which of the following statements about the structure of proteins is true?

Question 9 : Which one is the major globin present in adult human being

Question 21 : The four elements that make up $99\%$ of all elements found in a living system are

Question 25 : Which of the following is an organic compound found in most cells?

Question 27 : Which of the following element is present in all amino acids and absent in carbohydrates?

Question 30 : For growth of body and its repair one needs which of the following component?<br/>

Question 39 : If all the peptide bonds of protein are broken, then the remaining part is

Question 44 : The substance which makes up about 80% of cytoplasm&#160;and has unique structure is&#160;

Question 53 : Proteins&#160;differ from carbohydrates and lipids in that, they always contain nitrogen,&#160;carbon, hydrogen and oxygen.

Question 56 : Low calorie sweetener protein used by the people of West Africa is

Question 57 : The correct order of chemical composition of living&#160;tissues/cells in term of percentage of the total cellular mass is<br/>

Question 59 : The acid soluble pool represents roughly the cytoplasmic composition. Which of the following nutrient is most likely absent in it?

Question 61 : About 98 percentage of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and

Question 63 : The lipid that mainly functions are fuel reserve in animals is:

Question 66 : Select the correct option:The sum total composition of acid-soluble and acid-insoluble fraction represents the entire composition of&#160;<br/>

Question 68 : When we homogenise any tissue in an acid the acid soluble pool represents<br/>

Question 71 : Take a living tissue, grind it in trichloroacetic acid using pestle and mortar, and then strain it, you would obtain two fractions: acid-soluble and acid-insoluble fraction. Acid-insoluble fraction does not contain<br/>

Question 72 : Major portion of dry weight of a plant consists of elements

Question 73 : Insulin produced by $\beta$-cells in our body contains ............. amino acids

Question 75 : The arrangement of three successive bases in the genetic code signifies<br/>

Question 86 : The major portion of the dry weight of plants comprises of ______________.

Question 89 : Match the following with correct combination.<br/><table class="wysiwyg-table"><tbody><tr><td><b>Column I</b></td><td><b>Column II</b></td></tr><tr><td>a. Triglycerides</td><td>1. Galactose</td></tr><tr><td>b. Lactose</td><td>2. Glycerol</td></tr><tr><td>c. RNA</td><td>3. Palmitic acid</td></tr><tr><td>d. $\beta$ pleats</td><td>4. Uracil</td></tr><tr><td>e. Beewax</td><td>5. Secondary structure</td></tr></tbody></table>

Question 96 : Glycogen a chain polymer in which glycosidic linkage is present at C-1 and C-4 and branching occurs by formation of glycosidic linkage between C-1 and C-6. Its structure is similar to :

Question 99 : _____is the most abundant protein in animal world and ____is the most abundant protein in the whole biosphere.<br/>

Question 104 : Which of the following statements are true?<br/>(a) Proteins are the heteropolymer of $\alpha $-amino acid.<br/>(b) Sugar found in nucleic acid, is in the form of $\beta $-form.<br/>(c) Nucleic acids show acidic nature.<br/>(d) 5-methyl uracil binds with first carbon atom of ribose sugar.<br/>(e) Collagen is most abundant protein in plant world.<br/>

Question 107 : In a lab situation, a student is asked to identify which macromolecule is found in 3 different solutions.<br/>Solution 1 contains a macromolecule that is composed of atoms of carbon, hydrogen, oxygen and nitrogen. It tests positive with&#160;Biuret solution.<br/>Solution 2 contains a macromolecule composed of carbon, hydrogen and oxygen in a 1:2:1 ratio. It tests positive with iodine-potassium&#160;iodide solution.<br/>Solution 3 contains a macromolecule that is composed of atoms of carbon, hydrogen, oxygen, and phosphorus.<br/>Which of these best identifies the macromolecule found in each solution?

Question 110 : A peptide bond is found in which type of biological molecule

Question 111 : A student tested four unknown solutions of macromolecules with three reagents. She also tested the solubility of the solutions with water, a polar solvent, and hexane, a non-polar solvent. Her results are shown in the table below.<br><table class="wysiwyg-table"><tbody><tr><td>Solution</td><td>Benedict's Solution</td><td>Biuret Solution</td><td>Iodine</td><td>Iodine Solubility</td></tr><tr><td>1<br>2<br>3<br>4</td><td>yes<br>no<br>no<br>no</td><td>no<br>no<br>yes<br>no</td><td>no<br>yes<br>no<br>no</td><td>water<br>water<br>water<br>hexane</td></tr></tbody></table>Which of these correctly identifies the macromolecule found in each solution?<br><br>

Question 113 : Match the compounds and their chemical units.<br/><table class="wysiwyg-table"><tbody><tr><td><b>Compound</b></td><td><b>Units</b></td></tr><tr><td>A. Amylopectin</td><td>&#160;p. Unbranched polymer of glucose</td></tr><tr><td>B. Lignin&#160;</td><td>&#160;q. Branched polymer of glucose</td></tr><tr><td>C. Chitin</td><td>&#160;r. Complex polymer of aromatic alcohols</td></tr><tr><td>D. Proteins</td><td>&#160;s. Polymer of acetyl glucosamine&#160;</td></tr><tr><td></td><td>&#160;t. Polymer of amino acids</td></tr></tbody></table>

Question 115 : Match the columns and choose the correct option.<br/><table class="table table-bordered"><tbody><tr><td>&#160;</td><td>&#160;Column I</td><td>&#160;</td><td>Column II<br/></td></tr><tr><td>&#160;A</td><td>&#160;Fructose</td><td>&#160;1</td><td>Disaccharide</td></tr><tr><td>&#160;B</td><td>Sucrose</td><td>&#160;2</td><td>Monosaccharide</td></tr><tr><td>&#160;C</td><td>&#160;Sodium taurocholate</td><td>&#160;3</td><td>Amino acid</td></tr><tr><td>&#160;D</td><td>&#160;Glycine</td><td>&#160;4</td><td>Bile salts</td></tr></tbody></table>

Question 116 : Enzyme, vitamins and hormones can be classified into a single category of biological chemicals, because all of these

Question 117 : Arrange the following compounds in descending order on the basis of number of carbon atoms present in them.<br>(A) Palmitic acid (B) Serine (C) Ribose (D) Arachidoric acid (E) Glucose <br>

Question 118 : Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?

Question 120 : Match the biological molecule listed under column I with their biological function listed under column II. Choose the answer which gives the correct combination of alphabets of the two columns.<br/><table class="wysiwyg-table"><tbody><tr><td></td><td>Column I<br/>(Biological molecule)<br/></td><td></td><td>Column II<br/>(Function)<br/></td></tr><tr><td>A</td><td>Glycogen</td><td>1</td><td>Hormone</td></tr><tr><td>B</td><td>Globulin</td><td>2</td><td>Biocatalyst</td></tr><tr><td>C</td><td>Steroid</td><td>3</td><td>Antibody</td></tr><tr><td>D</td><td>Peptidase</td><td>4</td><td>Storage product</td></tr></tbody></table>