MINISTRY OF EDUCATION
CORNER STAR PRIVATE SCHOOL
BIOLOGY PRACTICAL (ASSESSMENT 1) GRADE 11
NAME:………………………………………………………………………….
Answer both questions.
1 (a) You are provided with solution A and B.
(i) Using the reagent provided, carry out food tests on the solutions A and B given.
Reagent Solution Method Observation conclusion
Iodine
solution
[6]
(ii) State the importance of the food nutrient in solution A.
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(iii) Name the nutrient in the table above which is acted upon by pancreatic amylase in
the digestive system.
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(b) You are provided with solution C and D.
(i) Using the reagent provided, carry out food tests on the solution C and D given.
Reagent Solution Method Observation conclusion
Biuret
Solution
[4]
(ii) Which of the two nutrients tested above is pepsin works on to form peptides?
………………………………………………………………………………………………………… [1]
(iii) Give a reason for you answer in (b)(ii) above.
………………………………………………………………………………………………………… [1]
(iv) In which part of the digestive system is the nutrient digested?
………………………………………………………………………………………………………… [1]
(v) State the importance of solution C in the nutrition of a mammal.
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[Total: 20 marks]
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2 Examine specimen E using a hand lens.
(a) State the class to which specimen E belongs.
…………………………………………………………………………………………………………………. [1]
(b) (i) Using a hand lens, draw a labelled diagram of specimen E in the space provided.
[8]
(ii) Measure the length of the drawing.
…………………………………………………………………………………………………… ………. [1]
(c) Calculate the magnification of specimen E.
[3]
(d) (i) Identify the visible structural features of specimen E.
1 …………………………………………………………………………………………………..
2 ………………………………………………………………………………………………….. [2]
(ii) State two differences between a monocotyledoneae and a dicotyledoneae.
1 …………………………………………………………………………………………………..
2 ………………………………………………………………………………………………….. [2]
(e) Explain how specimen E is important in the human diet.
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