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, 05 ^th  November 2014 a.m.

INSTRUCTIONS

1. This paper consists of three sections A, B and C.

2. Answer all questions from sections A and B and one (1) question from section C.

3. Except for diagrams that must be drawn in pencil, all writings should be in blue or black ink.

4. Calculators and cellular phones are not allowed in the examination room.

5. 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 your answer booklet.

(i)A term which best describes a condition of a plant cell that has lost too much water is

1.  haemolysis
2.  turgidity
3.  creanation
4.  plasmolysis
5.  osmosis

(ii) Bowmans capsule in the kidney functions as a

1.  filter
2.  sanction
3.  transmitter
4.  sponge pump
5.  absorber

(iii) A structure which controls the body balance in humans is located in the

1.  outer ear
2.  eardrum
3.  inner ear
4.  middle ear
5.  inner membrane

(iv) The main product of photosynthesis process is

1.  sunlight
2.  carbohydrate energy
3.  carbon dioxide
4.  water
5.  oxygen

(v) Species with cellulose in their cells are formally placed in

1.  Kingdom Monera
2.  Kingdom Animalia
3.  Kingdom Fungi
4.  Kingdom Plantae
5.  Kingdom Protista

(vi) Fertilization process is defined as

1.  formation of new cells
2.  union of an egg and sperm
3.  implantation of a zygote
4.  fusion of eggs in the uterus
5.  cell division in the oviduct

(vii) Mutual interaction between two species is described by which of the following characteristic

1.  Both live as parasite
2.  Both may be harmed
3.  Both benefit and flourish
4.  One is harmed and the other benefits
5.  Both neither benefits for is harmed

(viii) One of the characteristics used to identify producers in the ecosystem is

1.  feeding on ready-made food
2.  growing in fertile soil
3.  feeding on other organisms
4.  making their own food
5.  adding organic matter in the soil

(ix) The role of the optimum temperature in cellular activities is to

1.  change the chemical reactions
2.  balance the equilibrium of the reactions
3.  destroy many enzymes at once
4.  speed up the rate of chemical reaction
5.  create favourable environment for enzymes

(x) Rise of body temperature in the human body is corrected mainly by

1.  Dilating the skin arteries and sweating
2.  Constricting the skin arteries and shivering
3.  Dilating the skin veins and sweating
4.  Constricting the skin veins and shivering
5.  Dilating of arteries and shivering