Quelpr
2 marksNutrition in Living Organisms

CSEC Biology · May/June 2005 · Paper 2 · Question 1(d)(i)

Students observe two varieties of a plant species, one with green leaves and one with red leaves. They hypothesize that the green variety photosynthesizes more efficiently and plan an investigation.

Based on the students' observation, suggest a hypothesis for the investigation.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 1(a)(i)In the space provided below, construct a pie chart to show the relative proportions of the organisms the students found occupying the habitat.[4 marks]
  2. 1(a)(ii)What is the advantage of using a pie chart to represent the data in Table 1?[2 marks]
  3. 1(a)(iii)Identify another means besides a table and pie chart to represent the data in Table 1.[1 mark]
  4. 1(a)(iv)Identify TWO carnivores from the data contained in Table 1 and the pie chart.[2 marks]
  5. 1(b)(i)From the organisms the students find in the habitat, identify a food chain with at least FOUR organisms.[2 marks]
  6. 1(b)(ii)Suggest TWO long-term effects on the habitat, if a pair of flycatchers (insect-eating birds) suddenly enter the habitat under study.[2 marks]
  7. 1(c)(i)Identify TWO features shown in the drawings that can be used to classify the specimens.[2 marks]
  8. 1(c)(ii)In the space provided below, accurately draw Specimen B twice the size shown in Figure 2. State the magnification of your drawing.[4 marks]
  9. 1(d)(ii)Describe the investigation you would undertake to test the hypothesis you suggested in (d)(i). Include in your description the apparatus, materials and method…[4 marks]
  10. 1(d)(iii)State TWO environmental factors that affect the rate of photosynthesis.[2 marks]
  11. 1(d)(iv)Write an equation to adequately represent the processes involved in photosynthesis.[3 marks]

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