Question 5 :
Which of the following is an organic compound found in most cells?

Question 20 :
The lipid that mainly functions are fuel reserve in animals is:

Question 21 :
Enzyme, vitamins and hormones can be classified into a single category of biological chemicals, because all of these

Question 24 :
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 25 :
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 27 :
A peptide bond is found in which type of biological molecule