Second Term Examination
Class : JSS 2
Subject : Basic Science
Duration : 1 Hour 30 minutes
Name : _______________________________________
Instruction : Answer all questions correctly.
Section A : Objective Tests
1. Organs in the digestive system include all except (a) Oesophagus (b) Kidney (c) Large intestine (d) Duodenum
2. An organ responsible for the removal of urine from blood stream is the _______. (a) Lungs (b)Liver (c) Kidney (d) Skin
3. ________ can be separated without a chemical reaction. (a) Atom (b)Element (c) Mixtures (d)” Compounds
4. Hemoglobin is a chemical that carries round _______ the body. (a) Carbondioxide (b) Nitrogen gas (c) Oxygen (d) Water vapour
5. Excretory system involves organs that remove metabolic waste product from the body. The lungs remove _________. (a) Sweat (b) Carbondioxide (c) Salt (d) All of the above
6. Which of the following is not a component of balanced diet ? (a) Carbohydrates (b) Proteins (c) Persons (d) Vitamins
7. The product of digestion of protein is _______. (a) Amino acid (b) Fatty acid (c) Starch (d) Protein
8. Which of the following food item is a major source of protein? (a) Cassava (b) Plantain (c) Margarine (d) Youghurt
9. Carbohydrate are absorbed in the body in form of ________. (a) Acid (b)×Complex sugar (c) Glucose (d) Water
10. What main diet would you recommend for a body suffering from obesity ? (a) Beans and yam (b) Eba and malin soup (c) Rice and Plantain (d) Vegetable and meat
11. The presence of harmful or unwanted materials in the environment is _______. (a) Erosion (b) Pollution (c) Deforestation (d) Flooding
12. Alimentary canal can be defined as _______. (a) a tube in which food is broken down in the body into simple form that can be absorbed (b) a system made up of tiny cells held together by tendon (c) Found that produces bile (d) a tube in which food passes through an animal body.
13. Excretion is the ________. (a) removal of metabolic waste products from the body (b) removal of undigested food (c)removal of feaces and water (d) flushing out of solid waste
14. The long tube from the kidney to the bladder is known as ________. (a) Urethra (b) Alimentary canal (c) Ureter (d) Bladder
15. Urine contains ________. (a) 94%water, 2%salt , 4%urea (b) 98%water, 1%salt, 1%urea (c) 96%water, 2%urea, 2%salt (d) 30% water, 20%urea, 50%salt
Section B : Theory
Answer all the questions in this section correctly.
1ai. Define the term ” Habitat” .
1aii. Mention any two types of habitat
1b. With the aid of a diagram, differentiate between a food web and a food chain using definition.
2a. Define Pollution
2b. Write five sources of environmental pollution
2c. Give two features which are common to all vertebrate
3a. Draw the alimentary canal of a man and label it.
3b. Briefly distinguish between excretion and digestion