CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1

39 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.

1. Q11 mark · multiple choiceWhich of the following bonds between the molecules enables water to exist as a liquid rather than a gas at normal temperatures?
2. Q21 mark · multiple choiceItem 2 refers to the structures below which show two isomers of glucose. Which of the following statements is true about BOTH isomers?
3. Q31 mark · multiple choicePhospholipids will affect the function of which of the following cell structures? I. Endoplasmic reticulum II. Centrioles III. Mitochondrion IV. Nucleolus
4. Q41 mark · multiple choiceItem 4 refers to the following chemical structure of a molecule. Which of the following is the molecule represented by the structure?
5. Q51 mark · multiple choiceCollagen consists of three polypeptide chains held together by H-bonds - NH groups and -CO- groups. Which of the following terms describes the structure of collagen?
6. Q61 mark · multiple choiceItem 6 refers to tests performed by students to identify food substances present in a solution. The tests were carried out and their respective results are shown in the table below. \begin{tabular}{|l|l|} \hline…
7. Q71 mark · multiple choiceIn microscopy, the term 'resolution' is used to describe the
8. Q81 mark · multiple choiceItem 8 refers to the diagram below which shows the structure of a generalised plant cell. Which of the following options correctly indicates the organelles that contain DNA?
9. Q91 mark · multiple choiceThe organelles involved in the manufacture, modification and transport of lipases, respectively are
10. Q101 mark · multiple choiceItem 10 refers to the figure below which shows the structure of a bacterial cell as seen using an electron microscope. The structure involved in genetic engineering is
11. Q111 mark · multiple choiceItem 11 refers to the diagram below which shows a transverse section of a plant structure. The area labelled X represents
12. Q121 mark · multiple choiceItem 12 refers to the diagram below. The figure above BEST demonstrates
13. Q131 mark · multiple choiceWhen a plant cell is placed in a solution with a less negative water potential than its cell sap, the cell becomes more
14. Q141 mark · multiple choiceItem 14 refers to the graph below showing the effect of pH on the activity of enzymes. Pepsin is an enzyme found in the human alimentary system. Which of the above activity curves represents the action of pepsin?
15. Q151 mark · multiple choiceItem 15 refers to the graph below which shows the relationship between enzyme concentration and the rate of an enzyme catalysed reaction. Based on the diagram above, which of the following statements BEST describes the…
16. Q161 mark · multiple choiceThe following are the events in transcription. I RNA nucleotides are bonded together. II Hydrogen bonds between bases are broken. III The mRNA formed leaves the nucleus. IV Activated RNA nucleotides pair up with…
17. Q171 mark · multiple choiceItem 17 refers to the diagram below showing a segment of a strand of DNA. The base X is
18. Q181 mark · multiple choiceItem 18 refers to the following information. The sequence of bases in one strand of DNA from part of a gene is ACC CCA TTT CAT CCA. The table below shows the anticodons of some tRNA molecules and the specific amino…
19. Q191 mark · multiple choiceItem 19 refers to the diagram below which shows a cell at mitotic anaphase. The haploid (n) number of chromosomes for this organism is
20. Q211 mark · multiple choiceMendel crossed pure-breeding round and yellow peas with pure-breeding wrinkled and green peas. The \text{F}_1 seeds were round and yellow. The \text{F}_1 seeds were self-pollinated and the seeds of the \text{F}_2…
21. Q221 mark · multiple choiceA plant breeder crossed two tall, pink-flowered plants, the offspring of which are shown below. \begin{tabular}{|l|c|c|c|} \hline \multirow{2}{*}{\textbf{Height}} & \multicolumn{3}{c|}{\textbf{Flower colour}} \\…
22. Q231 mark · multiple choiceWhich of the following statements BEST explains a null hypothesis?
23. Q241 mark · multiple choiceRestriction enzymes cut DNA molecules only at specific target sites with particular base sequences. The target sites for some restriction enzymes are shown in the table below. \begin{tabular}{|c|c|} \hline…
24. Q251 mark · multiple choiceIn addition to the human insulin gene, which of the following would be required to provide a recombinant plasmid?
25. Q261 mark · multiple choiceItem 26 refers to the graph which shows the effect of a pesticide on houseflies. A fixed amount of chemical was used each year during the rainy season, and the data were collected over a number of years. Which of the…
26. Q271 mark · multiple choiceWhich form of chromosomal mutation is illustrated in diagrams 1 - 3 below?
27. Q281 mark · multiple choiceIn DNA recombinant technology specific genes are harvested then replicated. Which sequence BEST represents the correct sequence of insulin production?
28. Q291 mark · multiple choiceOne implication of the use of genetically modified organisms on humans is
29. Q311 mark · multiple choiceWhich of the following methods of asexual reproduction is INCORRECT, either by its definition or its example?
30. Q331 mark · multiple choiceItem 33 refers to the diagram below which shows the transverse section of an anther. Which of the labelled structures will produce the gametes?
31. Q341 mark · multiple choiceItem 34 refers to the diagram below which shows the development of the embryo sac and female gamete. The processes occurring at Stages 1, 2, 3, and 4 are
32. Q351 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. Does not lose advantageous phenotypes Which of the above are specific to cross…
33. Q361 mark · multiple choiceWhen the pollen grain alights on the stigma and starts to grow, the first action is that
34. Q371 mark · multiple choiceWhich of the following is the correct sequence of events that follows the fertilisation of a flower of an endospermous plant?
35. Q381 mark · multiple choiceItem 38 refers to the table below which shows results before and after fertilisation in plants. \begin{tabular}{|l|l|} \hline \textbf{Before Fertilisation} & \textbf{After Fertilisation} \\ \hline Ovary and contents &…
36. Q401 mark · multiple choiceItem 40 refers to the diagram below showing a transverse section through the middle piece of the sperm. The structure labelled H is
37. Q411 mark · multiple choiceThe structure of the human sperm is suited to its function. Which of the following structures of the sperm is NOT accurately matched with its function? \begin{tabular}{|l|l|l|} \hline & \textbf{Structure} &…
38. Q421 mark · multiple choiceThe DNA of a woman contains a defective gene for gonadotrophin releasing hormone. Which hormone and site of production will be affected by this defect?
39. Q451 mark · multiple choiceWhich of the following is NOT a function of amniotic fluid?