O LEVEL COMBINED SCIENCE BIO SECTION REVISION TEST 1. Free PDF download (37 KB) from the ExamineAI past papers library.
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This is the O-Level Combined Science question paper. Use it for exam practice under timed conditions.
O LEVEL COMBINED SCIENCE BIO SECTION REVISION TEST 1 1a)Define a cell (1) b) give any 3 examples of specialised cell and state how there are adapted for their functions(6) c)draw structures of RED BLOOD CELLS \& PALISADE CELLS ,stating the differences between these cells(3) 2a) Define the word "PHOTOSYNTHESIS" (2) b) state the word Equation for the chemical process of photosynthesis, hence write the chemical equation (3) c)state \&explain the conditions which are necessary for photosynthesis to take place(6) d)describe briefly the experiment to determine if CO2 is necessary for photosynthesis to take place (5) d)give the raw materials for photosynthesis \& their sources (4) 3a) What is respiration (2) b)give two types of respiration ,stating the differences between them(4) c) why is respiration an important process (2) d)describe how the structure of the alveoli is suited for its function in gaseous exchange(5) d)compare \& contrast between inhaled \& exhaled air(3) 4)state the end products of digestion of fats and proteins respectively(2) b) What is digestion (2) C) which part produces bile along the human alimentary canal (1) 5)Describe with aid of a diagram the differences between arteries arteries \& veins(4) b) give 4 components of blood , stating function of each (4) c) with aid of diagrams show the difference between phagocytes\& lymphocytes(3) 6a)describe how the male sex cell is adapted for its function (4) b)what is fertilization, menstruation\&implantation (3) c)how is a zygote formed (3) d)state roles of the placenta during pregnancy (3) e) describe briefly any 6 ways of contraception (6) 7a)disease cause means of transmission i)malaria