THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATIONS COUNCIL

CERTIFICATE  OF SECONDARY  EDUCATION   EXAMINATION 033/1 BIOLOGY   1

TIME: 3     HOURS Thursday,   11   ^th    October     2012a.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. Read each question carefully before you start answering it.

4. Except for diagrams that must be drawn in pencil, all writing should be done using a blue or black pen.

5. Calculators are not allowed in the examination room.

6. Cellular phones are not allowed in the examination room.

7. Write your Examination Number on every page of your answer booklet(s).

SECTION A (20 MARKS)

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.

(i)The joint in the human body which allows movement in all directions is known as

1.  pivot
2.  hinge
3.  double hinge
4.  ball
5.  peg and socket and socket

(ii)Which of the following is a metabolic waste product?

1.  Tears
2.  Saliva
3.  Mucus
4.  Faeces
5.  Urine

(iii) The following are examples of water-borne diseases:

1.  malaria and bilharzia
2.  yellow fever and typhoid
3.  diarrhoea and malaria
4.  cholera and plaque
5.  cholera and typhoid

(iv)One of the distinctive features of kingdom Fungi is possession of:

1.  plasma membrane
2.  cytoplasm
3.  chitin materials
4.  cell membrane
5.  cellulose material

(v)The regions of most active growth in plants are found mainly in the

1.  axillary buds and flowered
2.  stems and leaves
3.  stems and root hairs
4.  leaves and flowers
5.  stem and root apices

(vi) A grasshopper ventilates its gaseous exchange surfaces by

1.  moving the diaphragm
2.  beating of cilia
3.  rhythmic body movement
4.  opening of spiracles
5.  moving its rib cage

(vii) The taxonomic category of organisms belonging to the same class but not the same family is:

1.  Species
2.  Genus
3.  Order
4.  Phylum
5.  Kingdom

(viii) The breakdown of glycogen into glucose in the body is due to the action of:

1.  insulin
2.  adrenaline
3.  secretion
4.  glucagon
5.  gastric

(ix) The function of sunlight energy in the human skin is the stimulate the synthesis of

1.  vitamin A
2.  vitamin C
3.  vitamin D
4.  vitamin K
5.  vitamin B

(x)A rise in the temperature of a human body is corrected by

1.  construction of the skin arteries and sweating
2.  construction of the skin arteries and shivering
3.  dilation of the skin arteries and sweating
4.  dilation of the skin arteries and shivering
5.  shivering and sweating