THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATIONS COUNCIL
CERTIFICATE OF SECONDARY EDUCATION EXAMINATION
033/1 BIOLOGY 1
(For Both School and Private Candidates)
TIME: 3 HOURS Wednesday, 04 th November 2015 a.m.
INSTRUCTIONS
This paper consists of three sections A, B and C.
Answer all questions from sections A and B and one (1) question from section C.
Except for diagrams that must be drawn in pencil, all writing should be done using a blue or black pen.
Calculators and cellular phones 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.
1. 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 provided.
(i) Bowmans capsule is found in which of the following organs?
(ii) Which of the following processes is involved in the regulation of body temperature in human beings?
(iii) A structure that allows air to enter the trachea and prevents food from entering the wind pipe is known as
(iv) Study the following sequence of organisms: Grass ? Rabbit ? Wolves ? Fleas
The sequence is an example of
(v) Lipase enzymes are mainly contained in which digestive secretions?
(vi) A person who is admitted in the hospital after an operation will most likely be fed on food rich in:
(vi) Which of the following is a vector of sleeping sickness?
(vii) The outer most living structure that identifies a plant cell is the presence of
(x) One of the most distinctive features used to place organisms in the Kingdom Fungi is the presence of
(x) Which of the following represent the organisms with homologous structures?
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.
Each question carries 8 marks except question three and eight which carry 6 marks each.
(a) What do you understand by the following terms:
Biology
Zoology
(b) Why is it important to study Biology? Give four reasons.
View Ans(a) What do you understand by the term “First Aid”?
(b) State how you would render First Aid to a person who has been shocked by electric current.
View Ans(a) Define the terms “digestion” and “feeding” as used in Biology.
View Ans(b) Explain why during digestion the food is:
Alkaline when in the mouth.
Acidic when in the stomach.
Alkaline when in the ileum.
(a) List any three characteristics of the Phylum Arthropoda.
(b) (i) Mention the Classes of the Phylum Arthropoda
(ii) Name one representative member for each Class you have mentioned in 6(b)(i).
View AnsThe diagram in Figure 1 represents an eye of a human being. Study the diagram and answer the questions that follow:
(a)Name the labeled parts A – L.
View Ans(b) What will happen in part C if someone suddenly faces:
the dim light.
bright light.
(a) Define the term “gene” and “genetics”.
View Ans(b) Give two differences between Deoxyribonucleic Acid (DNA) and Ribonucleic Acid (RNA).
(a) Give the long meaning of the following abbreviation terms:
HIV
STIs
Tds
(b) Briefly explain any two ways through which HIV is transmitted from one person to another.
View Ans(a) Define the term “osmoregulation”.
(b) Briefly explain the mechanisms of regulating sugar level in the blood.
View AnsSECTION C (20 Marks)
Answer one (1) question from this section.
Explain how parts of the mammalian heart are adapted to their function.
Describe the symptoms of a person who is infected by Vibrio cholera and suggest six prevention measures and treatment for a cholera outbreak.
Explain the functions of the major components of the human skeleton and their adaptations.