Biology 2011 WAEC Past Questions

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A purple colour was obtained when sodium hydroxide solution and a drop of copper sulphate solution were added to a food substance. The food substance is likely to be a

A. carbohydrate
B. fat
C. protein
D. sugar

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Which of the following enzymes is active in the duodenum?

A. Pepsin
B. Renin
C. Trypsin
D. Amylase

View Answer & Discuss (5) WAEC 2011

The following organisms are producers except

A. Hibiscus
B. Mushroom
C. Cactus
D. Spirogyra

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Which of the following structures produces the greatest variety of digestive enzymes?

A. Salivary glands
B. Pancreas
C. Stomach
D. Colon

View Answer & Discuss (3) WAEC 2011

The following are abiotic components of an ecosystem except

A. temperature
B. oxygen
C. bacteria
D. soil

View Answer & Discuss (1) WAEC 2011

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