A student carried out two tests on the given food material, one with iodine solution, one with Benedict’s solution to find out its nutrient contents. i) ii) Identify which test required the use of heat [1] ________________________________________________ Complete the following table with the appropriate reagent, used to test for, observations and conclusions where necessary. [2] Reagent Used to Test for Observations Conclusions Positive/negative Biuret reagent Benedict’s solution Glucose Starch iii) ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ _______________________________________________________________ [1] iv) A student’s test gives a colour change with iodine. Does it indicate that there is no glucose and no protein in the sample? What experiment would the student have to carry out to give answer? ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________ ________________________________________________________________ [2] Explain why it is important to test for fats in food items? 5 Q.2 SECTION-B i) Identify X and Y in the given diagram A. ___________________________________________________________________ [1] ii) State any one difference between diagram A and C. ______________________________________________________________________ ______________________________________________________________________ _________________________________________________________________ [1] iii) The Fig. Given below shows villi. Suggest the reason why the small intestine has these finger-like projections rather than a smooth surface. ______________________________________________________