Biology · Paper 2 · 2019
54 questions 🏝 ZEC ✓ Official ZEC answersBiology · Paper 2 · 2019
54 questions
3-hour timed simulation · auto-graded · counts toward ranking
Pay & start exam →Section A
x) Organisms such as green plants that can manufacture their own food A: Scavengers B: Decomposers C: Producers D: Consumers
Match the items found in the laboratory in LIST A with the uses in LIST B. Write the answers in the table below the question.
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Read the questions below very carefully and then fill in the blank spaces. a) Materials that are no longer needed are referred to as __________. b) A scientific system of naming organisms is ______________. c) Amoeba use _______________for locomotion and to ______________ food particles. d) Food substances peas, mushroom, beef, and termites are rich in _____________. e) The _________________ trophic level is made up of ___________________ such as bacteria and fungi. f) The ___________________ controls the functions of all the parts of the cell. g) The blood cells responsible for clotting of blood are known as _______________.
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Section B
Study the Figure X below then answer the questions that follows Figure X a) Identify any two (2) biotic factors from the figure X. b) Identify any two (2) abiotic factors from the figure X. c) Construct any two (2) food chains from the figure X. d) List any two (2) artificial components of environment found in the figure X. e) i) What is the ecological name of the figure X. ii) Define it
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Section C
v. What is the aim of adding a pinch of Sodium carbonate in the water? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________
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Organ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ System______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Mention any two (2) structures that are only found in plant cell _______________________________________________________________ _______________________________________________________________
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Draw the cross-sections of i) A vein ii) An artery Write any two (2) differences between an artery and a vein Artery Vein i) ii)
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Give the reasons for the following phenomenon a) Palisade cells contain many chloroplasts. ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ b) A person with blood group AB can receive blood from all blood groups. ___________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ c) The donor’s blood must be screened before transfusion. __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ d) Digestion of protein cannot start in the mouth. ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ e) The cell membrane allows only some substances to pass in and out of the cell. ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
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b) Study the set-up of the experiment of the photosynthesis , then answer the questions that follows a pinch of Sodium carbonate
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‘ Asthma and Lung cancer are infectious diseases of the respiratory system.’ Write a short essay on Asthma or Lung cancer, choose only one. Your essay should include a) Cause of the disease b) Symptoms of the disease c) Control measure (prevention and treatment) of the disease.
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Write a short essay on how to prevent accidents at home and school. Use the following guidelines a) Defining accident b) Group at risk c) Mention types of accidents d) Choose one common accident and explain the way of preventing it.
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