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UNIVERSITY OF KWAZULU-NATAL EXAMINATIONS: JUNE 2009 SUBJECT, kind & CODE DURATION 3 HOURS INTERNAL tester EXTERNAL EXAMINER FOUNDATION BIOLOGY PRACTICAL BIOL099; BIOL199 number tag 75 K. Brown, B. Keke, P. Seaman, S. Shaik, J.White Ms C. Still CANDIDATES ARE REQUESTED, IN THEIR OWN INTERESTS, TO import LEGIBLY THIS PAPER COMPRISES FIVE PAGES AND addendum A. ENSURE YOU stomach ALL OF THEM. ANSWER ALL QUESTIONS chief 1 victimization the materials provided on the side bench, prepare a arch senesce of some of your cheek cells. Stain your wet mount apply methylene blue-blooded. 1.1 1.2 1.3 1.4 1.5 View the slide you energise prepared nether high power and call a demonstrator to measure out your slide. (4) Draw and label twain cells. Annotate your drawing in full. manoeuver the real surface of it of it of one cell in µm. Show your working. answer for the magnification of your drawing. Show your working. exempt why methylene blue stain was use. (7) (2) (2 ) (2) 17 marks UNIVERSITY OF KWAZULU-NATAL EXAMINATIONS COURSE & CODE: BIOL099; BIOL199 – keister Biology JUNE 2009 Page 2 Question 2 construe the micrographs below and answer the questions that follow. flagellum Q X chloroplast A Y 0.5 µm B 2500X P 2.

1 P Using the crustal plate bar calculate the real size (from X to Y) of the unicellular organism in micrograph A. Show your working. (2) 2.2 2.3 Calculate the real size (from P to Q) of the unicellular organism in micrograph B. Show your working. (2) explicate the difference in the size of these twain organisms (A and B) by referring to pat ent differences in their structure. 2.4 (5) ! What kind of a microscope was used to produce these micrographs? switch a reason for your answer. (2) 2.5 a. How does organism in B nurse its energy and convert it into useable trend? Refer to discernible (2) features of the organism. b. What kind of environment do you hypothesize this organism lives in? Give a reason for your answer. (1) 14 marks UNIVERSITY OF...If you want to energise a full essay, prescribe it on our website: BestEssayCheap.com

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