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O-LevelBiologyTransport in Humans5090/22 · May/June 2014 · Q48 Marks

[Figure 4.1(a)] shows the reproductive organs of a man and [Figure 4.1(b)] shows the reproductive organs of a woman.

  1. (a)Complete Table 4.1, stating the names of the structures in [Figure 4.1(a)] and indicating whether they carry urine and/or sperms using yes or no as appropriate. Table 4.1: has columns 'structure identified by letter', 'name of structure', 'carries urine (yes or no)', 'carries sperms (yes or no)'. Rows are for F, G, H, J.[4]
  2. (b)Indicate by drawing a line across each of the relevant parts in both [Figure 4.1(a)] and [Figure 4.1(b)], where a cut may be made in order to carry out a form of surgical contraception.[2]
  3. (c)In older men, the prostate gland tends to increase in size. Suggest an explanation for how this may affect urination.[2]

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Mark scheme

Marking points from the official mark scheme (May/June 2014). The mark or mark type is shown in brackets.

  1. [4] 1 mark per correct row ;
  2. F ureter yes no
  3. G urethra yes yes
  4. H rectum no no
  5. J vas deferens/sperm duct no yes
  6. spelling of ureter and urethra must be correct
  7. [2] line drawn across sperm duct ;
  8. line drawn across oviduct ;
  9. R if more than one line drawn on each Fig.-- unless across same structure
  10. R if more than one structure cut
  11. Ig skin cuts
  12. [2] closes/restricts AW the urethra ;
  13. adverse effect on urination AW ;
  14. Ig ref bladder
  15. Ig refs to pain on urination

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About this question

Topic
Transport in Humans, O-Level Biology (syllabus 5090). Structured question, 8 marks.
Source
O-Level Biology, May/June 2014 Paper 2 Variant 2, question 4.

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