THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATIONS COUNCIL OF TANZANIA
CERTIFICATE OF SECONDARY EDUCATION EXAMINATION
033/1 BIOLOGY 1 (For Both School and Private Candidates)
Time: 3 Hours Wednesday, 07th November 2018 a.m.
Instructions
This paper consists of sections A, B and C with a total of thirteen (13) questions.
Answer all questions in sections A and B and one (1) question from section C.
Except for diagrams that must be drawn in pencil, all writing should be in blue or black ink.
Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
Write your Examination Number on every page of your answer booklet(s).
SECTION A (20 Marks)
Answer all questions in this section.
For each of the items (i) - (x), choose the correct answer from among the given alternatives and write its letter beside the item number in the answer booklet.
(i) Mitosis normally takes place in
(ii) Which of the following is the symptom of the disease caused by lack of protein in children?
(iii) flow many gametes are produced from one cell during meiosis?
(iv) Which of the following is the excretory organ in human?
(v) Which of the following hormones stimulates seed germination in plants?
(vi) A joint which allows rotation in all planes is called
(vii) In which environmental condition the loss of water vapour from plants is mostly favourable?
(viii) The function of the bright coloured petals in flowers is
(ix) The function of hydrochloric acid in food testing experiment is
(x) The interaction between two species in which both organisms benefit is known as
2. Match the phrases in List A with the responses in List B by writing the letter of the correct response from List B beside the item number of List A in your answer booklet.
LIST A | LIST B |
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SECTION B (60 Marks)
Answer all questions in this section.
All questions carry 8 marks except question three (3) and seven (7) which carry 6 marks each.
3. (a) Differentiate the term "Biological apparatus" from "Biology Laboratory".
View Ans(b) Briefly explain why the following substances are dangerous?
Toxic substances
Highly flammable
Corrosive substances
Radioactive substances.
4. (a) Give the meaning the following terms as used iri Biology:
Blood transfusion.
Blood compatibility.
(b) (i) State two advantages of blood transfusion.
(ii) Outline four precautions to be taken during blood transfusion.
View Ans5. (a) Explain the distinctive features of the Division Filicinophyta.
View Ans(b) Draw a well labeled diagram of a fern plant.
View Ans6. (a) Describe the stages of human post-natal growth and development.
View Ans(b) What do you understand by a term "primary growth" in plants?
View Ans7. (a) Briefly explain the process of menstruation in human being.
View Ans(b) Mention two types of the common disorders of human reproductive system.
View Ans8. (a) List any four macro-elements in plant nutrition.
View Ans(b) Explain the causes of any three common disorders and diseases of the human digestive system.
View Ans9. (a) A newly married couple expects a baby. Using a genetic cross, work out the probability of their first born child being a boy.
View Ans(b) Give the meaning of the following terminologies as used in genetics:
(i) Sex linked genes
(ii) Sex determination
(iii) Phenotype.
View Ans10. (a) Give the meaning of the following Biological terms as used in the ecosystem:
Biotic components
Abiotic components
Food chain
Food web.
(b) Construct a feeding relationship which accommodates the following organisms:
Grasses, Goat, Sheep, Shrubs and Man.
View AnsSECTION C (20 Marks)
Answer one (1) question from this section.
11. Elaborate four causes and five preventive measures of drug abuse.
View Ans12. With the aid of a well labelled diagram, describe the urinary system and explain the process of urine formation in human beings.
View Ans13. Describe four evidences of organic evolution.
View Ans