DEMO~PAPER 138-QNS

 

PRESIDENT’S OFFICE

REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

MPWAPWA DISTRICT COUNCIL

FORM FOUR PRE-NECTA I EXAMINATION-033 BIOLOGY 1

TIME: 3.00 Hours SEPTEMBER, 2023

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of fifteen (11) questions.

2. Answer all questions in sections A, B, and two (2) questions from section C .

3. All writing should be in blue ink, except for diagrams, which must be drawn in pencil.

4. Cellular phones and any unauthorized materials are not allowed in the examination room.

5. Write your Examination Number on every page of your answer sheets.

SECTION A (16 Marks)

Answer all questions in this section

1. Choose the most correct answer among the given alternatives and write down the answer in the space given.

1. Which structure does amoeba use for gaseous exchange?

   1. Gills

   2. Lungs

   3. Cell membrane

   4. Trachea

   5. Spiracle

2. In a field experiment that tests the quantity of crop yields per acre from maize seeds type A and maize seeds type B, the seed types represent:

   1. Dependent variable

   2. Control experiment

   3. Abiotic factor

   4. Test cross

   5. Independent variable

3. A doctor injects fertility drugs into a woman. After the injection, the hormones travels…

   1. Through the bloodstream to the androecium

   2. Through the skin to the ovaries

   3. Through the bloodstream to the ovaries

   4. Through the skin to the ovum

   5. Through the bloodstream to the ovum

4. In terms of plants’ generations, a seed of a sunflower plant is considered as

   1. A gametophyte

   2. A sporophyte

   3. A Coniferophyta

   4. A bryophyte

   5. A pteridophyte

5. What are the end products of digestion of the food substance resulting from eating sugarcane? A. Sucrose and maltose

2. Maltose and glucose

3. Fructose and galactose

4. Glucose and fructose

5. Galactose and fructose

6. After a car accident, a patient developed a loss of speech condition due to brain injury. Which part of the brain was damaged?

   1. Cerebellum

   2. Hypothalamus

   3. Mid brain

   4. Cerebrum

   5. Olfactory lobe

7. You came across a person who was receiving First Aid treatment. The victim was made to lie down with legs raised above the heart level. What first aid treatment was the victim most likely receiving?

A. First aid because of fainting.

2. First aid because of nose bleeding.

3. First aid because of hiccups.

4. First aid because of a snake bite poisoning.

5. First aid because of drowning.

8. Assume your blood group is O positive. Which of the following can be correct about you?

   1. You can donate blood to a person with any other blood group.

   2. You can donate blood only to people with blood group O positive.

   3. You can donate blood to all people who are rhesus positive.

   4. You can donate blood to all people who are rhesus negative

   5. You can receive blood from people with any blood group.

9. 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?

   1. Afferent neurone

   2. Efferent neourone

   3. Intermediate neurone

   4. Relay neurone

   5. Effector organ

10. Life probably started by a catalytic effect that made free elements to combine and form molecules that further combined to form a stable system capable of releasing energy and replicating itself; these were the first living organisms resembling the present day viruses and bacteria. This is known as the:

1. Cosmozian theory

2. Organic evolution theory

3. Spontaneous generation theory

4. Special creation theory.

5. Steady state theory

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