THE UNITED REPUBLIC OF TANZANIA
O-STUDY LIBRARY
BIOLOGY - MOCK EXAM
TIME 3:00HRS 2024
INSTRUCTIONS
This paper consist of section A, B and C
Answer all questions from section A, B and only two (2) questions from section C
All answers must be written in the space provided
All writing must be in blue or black ink.
Write your number at the top right hand corner of every page.
SECTION A (16 Marks)
Answer all questions from this section
1.For each of the items (i)-(x) choose the correct answer from among the given alternative and write its letter beside the correct number.
(i) Which of the following is a symptom of a person suffering from HIV/AIDS?
(a) Frequent urination (b) Persistence fever
(c) Stomachache (d) Sneezing
(e) Paralysis
(ii) The part of the brain which co-ordinates support and movement in the human body is called:
(a) Cerebellum (b) Cerebrum
(c) Medulla oblongata (d) Spinal cord
(e) Hypothalamus
(iii) A person picks up a telephone after hearing it ringing. Which characteristics of livings is the person showing by this action?
(a) Excretion and reproduction (b) Respiration and growth
(c) Irritability and movement (d) Respiration and nutrition (e) Response and irritability
(iv) New plants sometimes grow buds of parent plants. This is an example of
(a) Asexual production (b) Sexual reproduction
(c) Budding (d) Fruit development (e) Fertilization
v. A vaccine against polio is likely to contain weakened:
(a) Polio bacteria (b) Toxin
(c) Antibody (d) Antigen
(e) Virus
vi. Plant production and photosynthesis rate in the field are greatly influenced by:
(a) Temperature (b) Water supply
(c) Carbon dioxide supply (d) Light intensity
(e) Soil fertility
vii. Joints can be likened to levers. Which of the following is an example of first-class lever?
An ankle when one is standing on tip-toe
A knee when one is kicking a football
An elbow when one is picking up an object
The shoulder when one is raising the arm
The hip when one is dancing โzoukโ or โsindimbaโ
viii. The release of an egg cell from the ovary is known as:
(a) Evolution (b) Menstruation
(c) Ovulation (d) Ecdysis
(e) Parturition
Ix. If a parent cell has 12 chromosomes, how many chromosomes how many chromosomes will be in the daughter cells formed after meiosis?
(a) Six (6) (b) Twelve (12)
(c) Eighteen (18) (d) Twenty (20)
(e) Thirty-six (36)
x. Viruses are considered to be non-living because:
They are only active in the contents of a living cell
They have true nuclei
The body is covered by a cell wall
They are single-cell eukaryotic organisms
They are multicellular organisms