Question 7 : Hormones, enzymes and vitamins are included in same group of biochemicals because these all <br/>

Question 12 : Which carbohydrate is found in the exoskeleton, of insects and crabs?

Question 14 : Fats and carbohydrates can be differentiated based on the fact that ___________.

Question 16 : A biological molecule made up of only carbon, hydrogen and oxygen.<br/>

Question 22 : In which of the following solvents lipids are found to be insoluble?

Question 23 : Carbohydrates, the most abundant biomolecules <span>on earth, are produced by -</span>

Question 24 : Which of the following is an organic compound found in most cells?

Question 27 : Which of the following sugars cannot be hydrolysed further to yield simple sugars?

Question 37 : Assertion: Reducing sugar give a red precipitate with Fehling's solution and show mutarotation. Reason: During mutarotation, one pure anomer is converted into a mixture of two anomers.

Question 39 : If in a man, normal glucose conc. increases to 190 mg/100 ml. Which of the following will occur?

Question 41 : Which of the following is sweet in taste but is not a sugar?

Question 42 : Most common protein and carbohydrate found in a cow's milk are

Question 44 : The colour of the precipitate formed when a reducing sugar is heated with Fehling solution is:

Question 47 : Which of the following compounds can be detected by Molisch's test?

Question 50 : Name the main constituent of the food, in the absence of that one cannot live

Question 53 : Number of oxygen atoms in lipid molecules is always ......... as compared to number of carbon atoms

Question 54 : The minimum number of carbon atoms that should be present in a monosaccharide is :

Question 57 : Which biomolecule is made up of only carbon, hydrogen and oxygen?

Question 58 : Which of the following nutrients do not provide energy for animals?

Question 60 : Carbohydrates that, on attempted hydrolysis, are not cleaved to smaller carbohydrates are called <span>:</span>

Question 61 : Which of the following has been used in the manufacture of non-inflammable photographic films?<br/>

Question 63 : The most resistant organic substance which can withstand environmental extremes and cannot be degraded by any enzyme is

Question 66 : Identify the correct order of the size of the structures from the smallest to the largest.<br/>I= Bacterium<br/>II= Enzyme<br/>III= Nucleus<br/>IV= Chromosome<br/>V= Molecule of water

Question 68 : Decreasing order of amount of organic compound in animal body __________________.

Question 70 : <span>Select the correct option:</span><div>Read the given statements.<br/>i. Fructose is the sweetest sugar.<br/>ii. Glycine is the simplest amino acid.<br/>iii. Lactose is a disaccharide composed of one molecule each of glucose and galactose.<br/>iv. Cellulose is an unbranched chain of glucose molecules linked by $\beta$1, 4-glycosidic bond.<br/>Which of the given statements are correct?<span><br/></span></div>

Question 74 : Which one will yield less than $4$ ${kcal}/{mol}$ of energy when phosphate bond is hydrolysed?

Question 79 : An organic compound has a triple bond and double bond. It can be tested by :

Question 81 : Which of the following is incorrect about polysaccharides?<br>I. These are amorphous solids.<br>II. These are sparingly soluble in water.<br>III. These are sugars.<br>

Question 82 : Assertion: D-Fructose is used for sweetening cold drinks but not in hot ones Reason: The sweet form is fructopyranose; on increasing temperature causes a shift in the pyranose $\rightleftharpoons $ furanose equilibrium towards the less sweet furanose form

Question 86 : Assertion (A): Cellulose is not digested by human beings.<br>Reason (R): Cellulose is a polymer of $\beta $-D-Glucose.<br>

Question 87 : Assertion: Fructose is a reducing sugar. Reason: Fructose has a ketonic group.

Question 90 : Assertion: Sucrose is a reducing sugar and exhibits mutarotation. Reason: Sucrose is a disaccharide consisting of glucose and fructose units.

Question 91 : Which of the following categories of macromolecules includes representatives that frequently serve as energy storage molecules?

Question 92 : Assertion: The digestion of carbohydrates does not take place in the stomach. Reason: Enzymes like salivary amylase become inactive in the stomach where there is an acidic pH.<div><br/></div><div>Read the above assertion and reason and choose the correct option regarding it.</div>

Question 97 : 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> p. Unbranched polymer of glucose</td></tr><tr><td>B. Lignin </td><td> q. Branched polymer of glucose</td></tr><tr><td>C. Chitin</td><td> r. Complex polymer of aromatic alcohols</td></tr><tr><td>D. Proteins</td><td> s. Polymer of acetyl glucosamine </td></tr><tr><td></td><td> t. Polymer of amino acids</td></tr></tbody></table>

Question 99 : Enzyme, vitamins and hormones can be classified into a single category of biological chemicals, because all of these