Directory Biology Papers
IB IBO October 2025 0 Total Marks

QP-202510-Biology-P1A(TZ1)-HL

40 questions in this paper. Sign in to the PaperAce App to view mark schemes and download high-resolution A4 PDFs.

Questions in this Paper

Question 1
#circulation #gas #exchange
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Question 2
#cell #biology #biological #molecules #nucleic #acids #genetics #immunity #disease #experiment
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Question 3
#biological #molecules
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Question 4
#cell #biology #biological #molecules #homeostasis
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Question 5
#enzymes #calculate
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Question 6
#cell #biology #circulation #gas #exchange #respiration #calculate
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Question 7
#respiration
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Question 8
#cell #biology #photosynthesis #respiration
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Question 9
#nucleic #acids #genetics
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Question 10
#biological #molecules #nucleic #acids #genetics
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Question 11
#nucleic #acids #genetics
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Question 12
#ecology #immunity #disease
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Question 13
#cell #biology
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Question 14
#cell #biology #biological #molecules #transport #in #cells #respiration
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Question 15
#nervous #system
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Question 16
#cell #biology #biological #molecules #enzymes #respiration #experiment
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Question 17
#immunity #disease
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Question 18
#nervous #system
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Question 19
#cell #biology #cell #division #biological #molecules
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Question 20
#cell #biology #transport #in #cells
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Question 21
#cell #biology #evolution #classification
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Question 22
#evolution #classification
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Question 23
#circulation #gas #exchange
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Question 24
#cell #biology #plant #transport
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Question 25
#cell #biology #transport #in #cells #plant #transport
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Question 26
#nervous #system
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Question 27
#cell #biology #biological #molecules #evolution #classification #plant #transport
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Question 28
#cell #biology #immunity #disease
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Question 29
#cell #biology #cell #division #nucleic #acids #genetics #reproduction
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Question 30
#nucleic #acids #genetics
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Question 31
#cell #division #nucleic #acids #genetics #experiment
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Question 32
#cell #biology #homeostasis #respiration
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Question 33
#nucleic #acids #genetics #evolution #classification
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Question 34
#evolution #classification #ecology #calculate
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Question 35
#nucleic #acids #genetics #ecology #digestion
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Question 36
#digestion #photosynthesis
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Question 37
#cell #biology #evolution #classification #ecology #ecology #biomes
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Question 38
#nucleic #acids #genetics #evolution #classification #ecology
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Question 39
#evolution #classification #ecology
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Question 40
#evolution #classification
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