Quelpr

Growth · CSEC Biology

40 past-paper questions on Growth, part of Life Processes and Disease, from every CSEC Biology paper on Quelpr.

Practise Growth
  1. 1(a)5 marks· Biology Q1 1(a)On the grid provided below, plot the data obtained for both plants on the same graph, using appropriate scales and legends.
  2. 1(a)(i)2 marks· Biology Q1 1(a)(i)Write a suitable aim for this experiment.
  3. 1(a)(i)7 marks· Biology Q1 1(a)(i)On the grid provided in Figure 1, draw a graph of the results shown in Table 1.
  4. 1(a)(ii)2 marks· Biology Q1 1(a)(ii)Using information from the graph you constructed on page 2, estimate the height of the corn plant on Days 5 and 13.
  5. 1(a)(ii)2 marks· Biology Q1 1(a)(ii)In which of the tubes, A or B, would germination most likely occur? Give ONE reason for your answer.
  6. 1(a)(iii)2 marks· Biology Q1 1(a)(iii)State TWO roles that the moisture from the cotton wool plays in the process of germination.
  7. 1(b)3 marks· Biology Q1 1(b)Describe the pattern of growth shown by the plant over the 36-day period.
  8. 1(b)(i)2 marks· Biology Q1 1(b)(i)Describe the pattern of growth obtained for EACH plant.
  9. 1(b)(ii)4 marks· Biology Q1 1(b)(ii)Explain the differences observed in the growth of the plants under these two conditions (light and dark).
  10. 1(c)2 marks· Biology Q1 1(c)Complete the following definition for 'growth' by writing the correct words from the list in brackets. (transient, temporary, mass, permanent, organs) Growth may be defined as a _______________ increase in the…
  11. 1(c)(i)1 mark· Biology Q1 1(c)(i)What is the likely source of food for the corn plant during the first 6 days?
  12. 1(c)(ii)2 marks· Biology Q1 1(c)(ii)Give TWO uses of the food obtained by the corn plant during the first 6 days.
  13. 1(d)1 mark· Biology Q1 1(d)Suggest why the measurements of length taken for the plants are incomplete, UNLIKE the measurements taken for a baby.
  14. 1(d)(i)1 mark· Biology Q1 1(d)(i)Measure the length of the radicle of the seedling on EACH day and record your measurements in Table 1.
  15. 1(d)(i)2 marks· Biology Q1 1(d)(i)Describe the method for obtaining dry mass, including the materials and apparatus necessary.
  16. 1(d)(i)1 mark· Biology Q1 1(d)(i)Identify ONE condition or circumstance when digestion of food takes place in a plant.
  17. 1(d)(ii)4 marks· Biology Q1 1(d)(ii)Plot the data in Table 1 on the graph paper below. Put days on the horizontal (x) axis.
  18. 1(d)(ii)1 mark· Biology Q1 1(d)(ii)State ONE step to be taken to ensure the accuracy of the results when using this method.
  19. 1(d)(iii)2 marks· Biology Q1 1(d)(iii)State TWO factors, other than water, that are required for the germination of the seed shown in Figure 2.
  20. 1(d)(iii)1 mark· Biology Q1 1(d)(iii)Give ONE disadvantage of using dry mass to determine growth.
  21. 1(d)(iv)4 marks· Biology Q1 1(d)(iv)Describe an investigation to test the hypothesis, 'Water is needed for the germination of seeds'.
  22. 1(e)2 marks· Biology Q1 1(e)Suggest TWO ways in which this experiment could be refined to obtain more accurate data for measuring growth.
  23. 1(e)2 marks· Biology Q1 1(e)Suggest why the cotyledons (seed leaves) become smaller as the primary leaves increase in size.
  24. 1(e)(i)2 marks· Biology Q1 1(e)(i)Suggest TWO ways in which water helps the process of germination.
  25. 1(e)(ii)2 marks· Biology Q1 1(e)(ii)Apart from water, state TWO environmental conditions needed for germination.
  26. 1(e)(ii)3 marks· Biology Q1 1(e)(ii)Explain what happens to the starch stored in the cotyledons when the seed germinates.
  27. 1(f)(i)3 marks· Biology Q1 1(f)(i)The corn seed germinated after a heavy shower of rain, although it had been in the soil for a long period of time. What changes occurred in the seed for germination to take place?
  28. 1(f)(ii)2 marks· Biology Q1 1(f)(ii)Apart from water, state TWO conditions necessary for germination.
  29. 1(h)1 mark· Biology Q1 1(h)State ONE role that light plays in human growth and development.
  30. 2(a)3 marks· Biology Q2 2(a)Label on the drawing in Figure 3, THREE parts of the seedling shown on Day 5.
  31. 2(b)3 marks· Biology Q2 2(b)Outline the changes that took place in the seed to allow the development shown in Figure 3.
  32. 3(a)5 marks· Biology Q3 3(a)Fully label the drawings to show the main parts of the seed.
  33. 3(a)(i)4 marks· Biology Q3 3(a)(i)Identify the structures labelled I to IV in Figure 4.
  34. 3(a)(ii)1 mark· Biology Q3 3(a)(ii)What is the function of the structure labelled IV?
  35. 3(b)3 marks· Biology Q3 3(b)After soaking in water for twenty-four hours, the part labelled X elongated (grew). What changes took place in the seed to bring about growth in part X?
  36. 3(c)3 marks· Biology Q3 3(c)Explain why it is important for plants to produce seeds with large amounts of stored food.
  37. 3(d)3 marks· Biology Q3 3(d)Identify THREE environmental factors that affect the rate of growth of a seedling.
  38. 4(a)4 marks· Biology Q4 4(a)Describe the changes taking place at stages II and IV.
  39. 4(c)(i)4 marks· Biology Q4 4(c)(i)Explain TWO advantages to the plant of storing food in its seeds.
  40. 4(c)(ii)4 marks· Biology Q4 4(c)(ii)Describe TWO situations in the life cycle of a plant when stored food is used.

Related topics in Life Processes and Disease