THE PRESIDENT’S OFFICER
EGIONAL ADMINISTRATION AND LOCAL GOVERNMENT
HAI DISTRICT COUNCIL TERMINAL EXAMINATIONS
FORM THREE
CODE: 033/1 BIOLOGY
TIME: 3 HOURS 2025
INSTRUCTIONS.
This paper consists ofsections A, B and C with a total of 11 questions.
Answer all questionsin section A and B andonly two (2) questions in section C.
Communication devices and any un authorized materials are not allowed in the examination room
Write your full name on every page of your answer sheet.
Use blue or black ink ball pointed pen but all diagrams must be in pencils
SECTION ‘A’
For each of the following items (i) – (x), choose the correct answer among the given alternatives then write its letter in your answer sheet:
i. Which of the following series of activities take place together when focusing a distant object?
Ciliary muscles relax and lens becomes thin
Ciliary muscles contract and the lens becomes thin
Ciliary muscles contract and the lens becomes think
Ciliary muscles relax and pulls the lens becomes thick
Ciliary muscle relax and pull the lens into its normal shape
ii. Which of the following would happen if a red blood cell is placed in a concentrated salt solution.
Turgidity
Crenation
Hemolysis
Plasmolysis
Bursting
iii. The rate of breathing increases when somebody is sick. This is due to the fact that
The body has low concentration of hemoglobin
The body has low concentration of carbonidioxide
There is decreased metabolism of the liver in order to remove the toxics released by pathogens
High concentration of carbondioxide int he blood
There is increased metabolism by the liver in order to remove the toxins released by pathogens.
iv. The proper method of disposing biohazardous wastes is ________?
Burning
Incineration
Recycling
Feeding animals
Pit latrines.
V. When a fish is taken out of water can die because
It has no legs for walking
It’s mouth is small to get the food on land
It’s gills are not able to exchange dry respiratory gases
On land there are many enemies than in water
The water on land flows faster than in rivers
vi. A person was admitted in the hospital after an operation will mostly likely to be feed on food rich in.
water
carbohydrates
roughages
lipids
proteins
vii. Msaki got an accident of being heated by a hot object, after accident he was unable to withdraw his hand from hot objects. Which of the nervous system could probably affected.
Cerebrum
Medulla oblongata
Cerebellum
Spinal cord
Hypothalamus
viii. If you stepped on a thorn barefooted, you would feel sharp stinging pain, which of the following would be responsible for the detection of the stimulus?
Afferent neurone
Efferent neurone
Intermediate neurone
Relay neurone
Effector organ
ix. Which of the following is not among the functions of the bones.
Support
Protection
Transport
Shape
Locomotion
x. Rahma discovered a street guy who could not speak properly due to excess use of drugs that slow down the brain and makes a person feels Sleepy. What probably is the types of drugs taken by the guy?
Stimulants
Sedatives
Hallucinogen
Depressants
Penicillin
The following are matching item. Match the phrase or term in LIST Awith that in LIST Bby writing its letter in the spaces provided.
|
LIST‘A’ |
LIST ‘B’ |
i. ii. iii. iv. v. vi. |
External flap of skin covered by elastic cartilage. It separates the outer ear from middle ear. Ear a ossicles Maintains the equal pressure inside and outside the ear Responsible for balancing the body Prevents the pathogens from entering the ear.
|
|
SECTION ‘B’
(a) What precautions should be taken in the care and handling of a microscope? Any three.
(b) Briefly explain the roles of the following First Aid Kit components in First Aid.
i. Wooden spatula
ii. Strips of cloth
iii. Gauze
During classification period, form three students classified maize and beans plants in two separate classes
Identify the classes maize and beans
Point four benefits of the division of plants above .
In which ways do female cones differ plants were classified to from male cones?
(a) What will be the effect of removing the following trophic levels in an ecosystem?
i. Predators iii. Herbivores ii. Decomposers
State how producers get their food nutrients in an ecosystem.
How do the following abiotic factors support an ecosystem
i. Water ii. Soil
(a) State the significance of the following biology laboratory features
i. Large windows iii. Water supply ii. Gas supply
What should you do in the following situations?
While you are boiling some water in laboratory, you realize that you need to go after your school bag from the classroom.
You need to perform a biology experiment but is no body in the laboratory
You have finished your biology experiment of the day.
(a) ) Give the function of the blood components
(b)Blood circulation is essential for any mammal in everyday life. Justify (five points)
(a) Give the name of the muscles which are found above and below the humerus
(b)Eplain what happen to the muscles when
(i) Arm is bending (ii)Arm is straight
(c)What are adaptations of muscles to their function (three points.)
SECTION ‘C’
(a)Majority of people believe that all bacteria are harmful organism. As form three student explain economic importance of bacteria
(a)Why excretion is important process in human being ?
(b)How human urinary system is adopted to its function?
11.Explain six (6) roles of the skin in the human body.