Biology · 2001 · November · Paper 2 · HL · Question paper

BIOLOGY HIGHER LEVEL PAPER 2 Monday 5 November 2001 (afternoon) 2 hours 15 minutes N01/410/H(2) INTERNATIONAL BACCALAUREATE BACCALAURÉAT INTERNATIONAL BACHILLERATO INTERNACIONAL 881-135 8 pages INSTRUCTIONS TO CANDIDATES ! Write your candidate name and number in the boxes above. ! Do not open this examination paper until instructed to do so. ! Section A: Answer all of Section A in the spaces provided. ! Section B: Answer two questions from Section B. Write your answers in a continuation answer booklet, and indicate the number of booklets used in the box below. Write your name and candidate number on the front cover of the continuation answer booklets, and attach them to this question paper using the tag provided. ! At the end of the examination, i ndicate the numbers of the Secti on B questions answered in the boxes below. Number Name TOTAL /72 TOTAL /72 TOTAL /72 NUMBER OF CONTINUATION BOOKLETS USED ......... /20/20/20QUESTION ......... /20/20/20QUESTION ......... SECTION B /32/32/32ALLSECTION A IBCATEAM LEADEREXAMINERQUESTIONS ANSWERED SECTION A Candidates must answer all questions in the spaces provided. 1. Energy released in cell respiration can be used for the muscle contractions that cause movement. The amount of energy used per second ( ) is th e power needed for movement. The graph below1J s− shows the power used by two birds for flying. The pheasant ( Phasianus colchicus) has a mass of 1.66 kg and the mallard duck (Anas platyrhynchos) a mass of 1.105 kg. The most efficient flying velocity for each bird, defined as the minimum number of Joules used per metre travelled, is indicated by V on the graph. 0 5 10 15 20 25 V pheasant mallard duck V 80 60 40 20 0 100 Flight velocity / 1ms− (Source: J M V Rayner (1979) J. Exp. Biol. 80 pages 17–54) [3](a) Compare the data for the two birds shown in the graph.