Quelpr
3 marksNutrition in Living Organisms

CSEC Biology · January 2019 · Paper 2 · Question 1(d)(ii)

Green plants produce and store carbohydrates.

Describe the procedure to test for the presence of starch in a leaf taken from a green plant.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)Outline the procedure used to prepare the sample for carrying out the food tests.[2 marks]
  2. 1(b)Complete Table 1 by describing the procedure that is used to test for the presence of EACH food nutrient in the meal and the expected results if the food…[6 marks]
  3. 1(c)(i)Name ONE enzyme involved in the chemical digestion of carbohydrates and ONE enzyme involved in the chemical digestion of proteins in the alimentary canal.[2 marks]
  4. 1(c)(ii)Suggest ONE reason why it is important for the recovering child to eat adequate amounts of carbohydrates and THREE reasons why it is important for the…[4 marks]
  5. 1(d)(i)Suggest TWO ways in which the type of nutrition carried out by green plants differs from that carried out by humans.[2 marks]
  6. 1(d)(iii)Explain why plants store most carbohydrates in the form of starch instead of in the form of a reducing sugar.[2 marks]
  7. 1(d)(iv)Suggest TWO reasons why it is important for plants to store starch.[4 marks]

More practice: the rest of this paper · more Nutrition in Living Organisms questions · all CSEC Biology past papers