CAPE Biology Unit 1 · 2007 (Specimen) · Paper 1
33 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.
- Q21 mark · multiple choiceItem 2 refers to the diagram below. The 3-unit molecular structure shown above is found in which of the following polymers?
- Q31 mark · multiple choiceWhich of the following numbers represent the correct number of fatty acid residues normally present in a phospholipid molecule?
- Q41 mark · multiple choiceItem 4 refers to the amino acid alanine which has the following molecular formula. Which of the following functional groups must combine to form a peptide bond?
- Q51 mark · multiple choiceWhich of the following types of bonds is responsible for stabilizing the secondary structure of a protein?
- Q61 mark · multiple choiceWhich of the following molecules shows the characteristics listed below? I. The triple helices are linked by covalent cross links. II. They are polypeptides in the form of three helices. III. Every third amino acid in…
- Q71 mark · multiple choiceItem 7 refers to the diagram below which shows the ultrastructure of a eukaryotic cell. Which of the following cell structures, labelled 1, 2, 3 and 4, is involved in the synthesis of lipids and steroids?
- Q81 mark · multiple choiceItem 8 refers to the following structures found in cells. I. Cell wall II. Cell Membrane III. Centrioles IV. Golgi Apparatus Which of the following combinations are features common to BOTH plant and animal cells?
- Q91 mark · multiple choiceAll of the following characteristics are typical of prokaryotes EXCEPT
- Q101 mark · multiple choiceXylem can MOST accurately be described as a tissue because it
- Q111 mark · multiple choiceItem 11 refers to the figure below which shows part of the cell-surface membrane of a red blood cell. Molecule Z acts as a carrier to transport selected substances across the membrane. Which of the following substances…
- Q121 mark · multiple choice
\text{Na}^+and\text{K}^+cannot pass freely into a cell across the phospholipid bilayer because - Q131 mark · multiple choiceAmylase found in germinating seeds is incubated with starch at
25^\circ\text{C}and pH 2. When a sample is removed after five minutes and mixed with a solution of iodine in potassium iodide solution, the mixture turns… - Q141 mark · multiple choiceItem 14 refers to the graph below which shows the rate of an enzyme catalysed reaction with and without inhibitors. Which of the following sequences describes the types of reaction shown by Graphs I, II and III?
- Q151 mark · multiple choiceWhich of the following graphs BEST illustrates the effect of temperature on an enzyme controlled reaction?
- Q161 mark · multiple choiceItem 16 refers to the following diagram. Which of the following molecules contains the monosaccharide shown above?
- Q171 mark · multiple choiceWhich of the following molecules are required to activate amino acids for attachment during translation in protein synthesis?
- Q211 mark · multiple choiceItem 21 refers to the following animal cell during meiosis II. Which of the following stages of meiosis II is shown in the diagram above?
- Q241 mark · multiple choiceItem 24 refers to the diagram below showing a fertilised ovule and carpel. Which of the following represents the structures which will become the I. embryo II. testa III. micropyle of the seed
- Q251 mark · multiple choiceItem 25 refers to the diagram below which shows a germinating pollen grain and a mature ovule. The nucleus which fuses with the male nucleus to form the zygote is
- Q261 mark · multiple choiceItem 26 refers to the following stages in the development of human sperm. I. Spermatid II. Spermatogonium III. Primary Spermatocyte Which of the following combinations is the correct order of sperm formation?
- Q271 mark · multiple choiceThe function of interstitial cells (cells of Leydig) is the production of
- Q281 mark · multiple choiceItem 28 refers to the diagram below which shows the levels of various hormones involved in the menstrual cycle in human females. Which ONE of the following is the most accurate deduction that can be made from the…
- Q291 mark · multiple choiceThe MAIN function of the placenta in humans is that it
- Q301 mark · multiple choiceAll of the following are able to cross the placenta EXCEPT
- Q311 mark · multiple choiceItem 31 refers to the following information. In tomatoes: R - red fruit (dominant) r - yellow fruit T - tall plant (dominant) t - short plant Both genes are on different chromosomes. A tomato plant homozygous for…
- Q321 mark · multiple choiceThe characteristic of inflated pea pods is controlled by one allele of a particular gene. The other allele results in constricted pods. Half the pollen grains of a heterozygous pea plant show the characteristic of…
- Q351 mark · multiple choiceThe coding DNA triplet for glutamic acid is CTT. This mutates to CAT in sickle cell haemoglobin. The complementary mRNA codon for sickle cell anemia is
- Q371 mark · multiple choiceIn which of the following events is variation NOT involved?
- Q391 mark · multiple choiceWhich of the following BEST explains the type of natural selection exhibited by the peppered moths living in a polluted area?
- Q411 mark · multiple choiceWhich of the following sequences illustrates the correct hierarchical order for the classification of living things?
- Q421 mark · multiple choiceItem 42 refers to the following classification scheme illustrating taxonomic levels. Animalia Chordata Mammalia Rodentia Muroidea Rattus rattus Which of the following is the correct name for the family to which this…
- Q441 mark · multiple choiceIn which of the following taxonomic groups will all the organisms be MOST similar to each other?
- Q451 mark · multiple choiceEx situ conservation methods for plants could be practised by all of the following methods EXCEPT