Quelpr

CAPE Biology Unit 1 · 2009 · Paper 1

43 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.

Practise this paper
  1. Q11 mark · multiple choiceSucrose makes a good transport molecule as seen in phloem tissue, because it is a
  2. Q21 mark · multiple choiceWhich of the following statements is NOT true about both isomers?
  3. Q31 mark · multiple choiceAn important property of cellulose is its ability to
  4. Q41 mark · multiple choiceThe arrangement of the polypeptide strands in collagen is BEST described as
  5. Q51 mark · multiple choiceWhich of the following indicates the food substance(s) present in the students' solution?
  6. Q61 mark · multiple choiceThe following is a diagrammatical representation of a phospholipid molecule. What do X, Y and Z represent?
  7. Q71 mark · multiple choiceIn the chloroplast, light energy is trapped in the
  8. Q81 mark · multiple choiceWhich organelle is involved in cytokinesis in plant cells?
  9. Q91 mark · multiple choiceThe area labelled X represents
  10. Q101 mark · multiple choiceMaterials are moved in and out of cells by various mechanisms. Which of the following mechanisms are affected by respiration? I. Facilitated diffusion II. Osmosis III. Active transport IV. Exocytosis
  11. Q121 mark · multiple choiceWhich of the following bonds is represented by the broken lines (---) in the diagram above?
  12. Q131 mark · multiple choiceChymotrypsin is an enzyme that is found in the human alimentary canal. It is active over a narrow range of alkaline pH values. Which of the activity curves represent the activity of chymotrypsin?
  13. Q141 mark · multiple choiceWhich of the labelled curves BEST represents the presence of a competitive inhibitor?
  14. Q151 mark · multiple choiceWhich of the following is represented by the label X?
  15. Q161 mark · multiple choiceThe base X is
  16. Q171 mark · multiple choiceWhat type of bonds are used to link nucleotides together to form a polynucleotide?
  17. Q181 mark · multiple choiceWhy is the copied portion of the DNA longer than that of the functional mRNA molecule produced from it?
  18. Q191 mark · multiple choiceStructures that may be observed in animal cells during mitosis but are NOT seen during cell division in flowering plants are
  19. Q201 mark · multiple choiceIn a rat cell, there are 32 chromatids present at the beginning of Prophase of mitosis. How many chromatids would there be in the cell at the beginning of meiosis?
  20. Q221 mark · multiple choiceThe mRNA molecule transcribed from the DNA does NOT contain
  21. Q231 mark · multiple choiceWhich of the following statements correctly describes the difference between RNA and DNA?
  22. Q241 mark · multiple choiceTwo parents, both of blood group B, have a son with blood group O. The probability that their next child will have blood group B is
  23. Q251 mark · multiple choiceWhich of the following may be used as methods of gene transfer? I. Virus II. Plasmid III. Electroporation IV. DNA gun
  24. Q261 mark · multiple choiceWhich form of gene mutation does the diagram illustrate?
  25. Q271 mark · multiple choiceAfter which of the following forms of gene mutation will a change in codons occur? I. Substitution II. Inversion III. Addition IV. Deletion
  26. Q281 mark · multiple choiceGiraffes are thought to have evolved long necks due to a short supply of food. Selection pressure favoured those with long necks who were able to reach enough food to survive. This type of selection is known as
  27. Q291 mark · multiple choiceA possible benefit of producing transgenic plants is
  28. Q301 mark · multiple choiceWhich of the following plays the MOST significant role in allopatric speciation?
  29. Q311 mark · multiple choiceWhich of the following provides nourishment for the sperm-producing cells in the testes?
  30. Q321 mark · multiple choiceWhich of the following is NOT a part of the anther?
  31. Q331 mark · multiple choiceWhat is the function of testosterone in spermatogenesis?
  32. Q341 mark · multiple choiceA diploid nucleus is formed at
  33. Q351 mark · multiple choiceWhich structure is responsible for the release of pollen grains?
  34. Q361 mark · multiple choiceWhich of the following structures of the seed is derived from a triploid nucleus?
  35. Q371 mark · multiple choiceThe role of X is to
  36. Q381 mark · multiple choiceWhich option describes the correct order of development?
  37. Q391 mark · multiple choiceThe structure labelled H is
  38. Q401 mark · multiple choiceWhich of the following hormones triggers the release of the ovum from the ovary?
  39. Q411 mark · multiple choiceWhich of the following is the effect of high dose progesterone-only pills?
  40. Q421 mark · multiple choiceThe structure labelled X is the
  41. Q431 mark · multiple choiceThe following are advantages of two types of pollination. I. No need for another plant II. Increases vigour III. Widens gene pool IV. Advantageous phenotypes retained Which of the above are specific to cross…
  42. Q441 mark · multiple choiceThe structure labelled X is MOST likely the
  43. Q451 mark · multiple choiceWhich of the following is the outermost extra-embryonic membrane and contributes to the formation of the placenta?

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