Basic Science

Len Academy Examination Questions for Basic Science, JSS3, 3rd Term

len Alfred Ajibola - Thu, 28th May, 2020 @ 07:38: AM

Topics in Basic Science

Importance of immunization Types of Carbohydrates: Monosaccharides and Polysaccharides Carbohydrates: Disaccharides and Oligosaccharides Len Academy Examination Questions for Basic Science, JSS2, 2nd Term Len Academy Examination Questions for Basic Science, JSS3, 3rd Term Len Academy Examination Questions for Basic Science, JSS3, 2nd Term Primates: Characteristics of Primates Effects of improper waste management Waste Management: Causes of waste in the society Concept of mass and weight Mineral Salts: Sources, functions and deficiencies of macronutrients Sources, functions and deficiencies of micronutrients Len Academy questions for Basic Science JSS1, second Term Len Academy mid-term test questions for Basic Science JSS1, 2nd Term Micro organisms causing food, water and air borne diseases Vector borne organisms and the diseases they cause Bones of the Human Skeleton Meaning of Drugs, Type of Drugs and Side effects of Drugs What is immunization? How immunization works and the processes involved Food: What is food?

Academic Questions in Basic Science

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Vaccination involves a process of introducing pathogens or germs into a person in order to prevent such person from the diseases they cause.

  • A. True

  • B. False

With regards to the human health, foreign bodies are best regarded as _____.

  • A. International bodies

  • B. Antilators

  • C. Antibodies

  • D. Antigens

  • E. Antibiotics

  • F. Antidotes

Disease causing organisms are termed _____.

  • A. Pests

  • B. Pathogens

  • C. Vectors

  • D. Insects

  • E. Disease carriers

  • F. All the above options are correct

____ is formed from a reaction utilizing oxygen and glucose in the mitochondria of cells.

  • A. Galactose

  • B. Fructose

  • C. Sucrose

  • D. AMP

  • E. ADP

  • F. ATP

Which of the following statement is false concerning carbohydrates?

  • A. They are composed of carbon, hydrogen and oxygen only

  • B. Carbon has the highest ratio of the constituent elements of carbohydrates

  • C. All carbohydrates are sugars

  • D. Fructose is a carbohydrate

  • E. Natural milk contains lactose and it's a carbohydrate

  • F. Fatty foods contains high calories of energy when compared to the same quantity of carbohydrate foods

Which of the following is a class of food?

  • A. Water

  • B. Fibre

  • C. Roughages

  • D. Latex

  • E. Tanins

  • F. Wax

Brachiation is a specialized form of movement exhibited by _____.

  • A. Human beings

  • B. Babbons

  • C. Chameleons

  • D. Toads

  • E. Millipedes

  • F. Birds

_____ is a form of locomotion whereby an organism move by means of its two hind limbs.

  • A. Pedalism

  • B. Duo Pedalism

  • C. Double Pedalism

  • D. Dual Pedalism

  • E. Bipedalism

  • F. Copedalism



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Basic Science Questions, JSS3, Third Term:

1. Which of the following is NOT part of a tooth?

  1. Canine
  2. Crown
  3. Pulp
  4. Root


2. The dwelling place of plants and animals is called _____.

  1. Habitat
  2. Ecosystem
  3. Ecology
  4. Community
  5. Please read on various Ecological Concepts here.


3. Which of the following is NOT a solid particle pollutant?

  1. Carbon(IV)oxide
  2. Soot
  3. Pollen grains
  4. Sand


4. Single circulation is seen in _____.

  1. Shark
  2. Rat
  3. Mouse
  4. Cattle


5. _____ force keeps a satellite moving around the earth.

  1. Gravitational
  2. Universal
  3. Centripetal
  4. Centrifugal
  5. Please read on Force and Motion here.


6. _____ is an example of a renewable energy.

  1. Wind
  2. Wool
  3. Kerosene
  4. Coal


7. Echo is caused by _____.

  1. Refraction of sound
  2. Deflection of sound
  3. Reflection of Sound
  4. Bouncing of Sound


8. Which of the following is NOT a lever?

  1. Hammer
  2. Screw
  3. Axle
  4. Pulley


9. Characteristics of solid state of matter will NOT include _____.

  1. Fixed shape
  2. Fixed volume
  3. Compression
  4. Density
  5. Please read on Solid State of Matter and Characteristics of Solids here.


10. An example of a mineral acid is _____ acid.

  1. Lactic
  2. Trioxonitrate V
  3. Citric
  4. Amino
  5. You can read on the Physical and Chemical Properties of Acid here.


11. _____ is NOT a drug.

  1. Coffee
  2. Babiturates
  3. Opium
  4. Conifer
  5. Please read on the Meaning and Types of Drugs here.


12. The Standard International Unit for work is _____.

  1. Newton
  2. Watt
  3. Joule
  4. Volt
  5. Please read on Fundamental Quantities and Units in Physics here.


13. Particles that make up matter move faster in _____.

  1. Iron
  2. Ice
  3. Steam
  4. Water
  5. Please read on the Concept of Matter here.


14. _____ is said to occur when vapour pressure equals the atmospheric pressure.

  1. Freezing
  2. Vaporization
  3. Boiling
  4. Melting
  5. Please read on the Physical Properties of Matter. Answer is present here.


15. _____ is a mixture.

  1. Water
  2. Common salt
  3. Limestone
  4. Air
  5. Please read on Mixtures and Types of Mixtures here.


16. Which of the elements is NOT a good conductor of electricity?

  1. Gold
  2. Silver
  3. Copper
  4. Silicon
  5. Please read on the Physical Properties of Metals here.


17. Weightlessness will be experience by a/an _____.

  1. Engineer
  2. Sailor
  3. Astronaut
  4. Pilot
  5. Please read on the Concept of Mass and Weight here.


18. The ratio of work output of a machine to work input is termed _____.

  1. Efficiency
  2. Velocity Ratio
  3. Effort Ratio
  4. Mechanical Advantage

You can attempt Len Academy Questions on various Subjects (with Answers) here.

19. The following are signs of puberty in boys EXCEPT _____.

  1. Wet dreams
  2. Menarche
  3. Sperm Production
  4. Broad Shoulders


20. Beast of burden are animals that are reared for _____.

  1. Skin
  2. Labour
  3. Meat
  4. Milk

Please read on what every Student is expected to know here.

21. The functional unit of the Central Nervous System is the _____.

  1. Brain
  2. Spinal cord
  3. Neurone
  4. Nerve
  5. Please read on the Introduction to the Human Brain here.


22. _____ is a biodegradable material.

  1. Leaf
  2. Copper
  3. Silicon
  4. Tyre
  5. Please read on Waste Management and Types of Wastes here.


23. An enzyme present in saliva is the _____.

  1. Ptyalin
  2. Renin
  3. Pepsin
  4. Trypsin


24. The breakdown of food substance to release energy is termed _____.

  1. Nutrition
  2. Irritability
  3. Respiration
  4. Photosynthesis
  5. Please read on the Characteristics of Living Organisms here.


25. Substances taken medically for physiological set up of the body are called _____.

  1. Minerals
  2. Drugs
  3. Vitamins
  4. Food
  5. The answer is present in this article here.


26. Fertilization in women takes place in the _____.

  1. Oviduct
  2. Uterus
  3. Ovary
  4. Cervix


27. Gaseous exchange occurs in the _____.

  1. Nostrils
  2. Bronchi
  3. Bronchioles
  4. Alveoli


28. A spider belongs to the class _____.

  1. Crustacea
  2. Insecta
  3. Myrapoda
  4. Arachnida


29. Which of the following organism is NOT a mammal?

  1. Whale
  2. Mouse
  3. Shark
  4. Bat


30. An injury that occurs to a muscle is called _____.

  1. Cramp
  2. Dislocation
  3. Fracture
  4. Sprain


You can Attempt Len Academy Examination Questions for Basic Science JSS3, 2nd Term here.

You can attempt Len Academy Basic Science Science Questions for JSS1, 2nd Term here.

You can read various articles on Basic Science here

You can read various articles on Biology here

You can read various articles on Chemistry here

You can read various articles on Physics here

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 10 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.

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Amazing facts in Basic Science

Cranberries - Len Academy

Ripe cranberries will bounce like a ball. For this reason, they are nicknamed 'bounceberries'. They will also float in water

Tomatoes and Avocados are fruits, not vegetables

Sweat in itself doesn't smell. The smell that accompanies sweat is actually caused by the presence of bacteria on your skin. This bacteria breaks the sweat coming out of your sweat pores down into acids, thus making it smell.

Deodorants contains alcohol and are antibacterial. They work by killing the bacteria that makes sweat smell

Chewing aspirin during a heart attack may be a life saver. This is true because the drug inhibits platelets from forming a clot that can block an artery of the heart, thus stopping a heart attack

The kneecaps of newly born babies are not made of bone. Rather, they are little bits of cartilage which ossifies (turns from cartilages to bone) from age 2 to 6

Ice cubes - Len Academy

Ice cubes made with fresh water are white in color while those made with boiled water are crystal clear

Cats are unable to taste sweet things

Apples float on water. Other fruits that float on water include lemons, bananas, pears, and oranges

Rain water is said to be pure because it's colorless, odourless and tasteless. Interestingly, it also contains vitamin B12.

Vitamin B12 is an important nutrient that keeps the blood cells and neurones healthy. It also assist in building the DNA (a genetic material present in the cell's nucleus). Vitamin B12 also aid in the prevention of megaloblastic anemia which makes people weak and tired

Rasceta is the name given to the lines on your palm


The uniqueness of man can be defined as that which makes man distinct from every other animal and living organism.

Humans are higher animals when compared to other animals.

Under the classification of living organisms, humans belong to an order termed primates and thus share the same characteristics (as primates). In addition to these features, they also have their unique characteristics.

Please read on man's uniqueness here

Waste Management can be defined as the process of collecting, processing, recycling and controlling any material considered as waste.

Improperly disposed waste litters on road sides, in land fills, gutters and ditches. They are generally bad for the following reasons:

Wastes can be classified into various types. These are:

  • Biodegradable waste

  • Non-Biodegradable waste

  • Refuse

  • Sewage

  • Recyclable waste

  • Electronic waste

  • Green waste

  • Biomedical waste

  • Metabolic waste

  • Radioactive waste

  • Chemical waste

  • Animal product waste

Please read the explanations on the classification of wastes here

The African Star Apple is a seasonal fruit that grows abundantly in Nigeria and other West African Countries. It's fondly called African Cherry, Agbalumo or Udara in some parts of Nigeria.

African Star Apple, Cherry, Agbalumo, Udara - Len Academy

Below are some benefits of the African Star Apple:

  • It contains high amount of vitamin C

  • It contains a high amount of calcium

  • It contains high amount of potassium

  • It is a powerful antioxidant

  • It aids in weight reduction

  • It contains a high amount of iron

  • Its leaves, fruits and seeds are medicinal

  • It aids digestion and prevents vomiting

Please read more on the african star apple here

Disaccharides are composed of two monosaccharides joined together; thus are also referred to as double sugars.

Disaccharides are often added as sweeteners to food; for instance, the table sugar called sucrose is a disaccharide often used by us to sweeten our tea.

Maltose is another disaccharide used as an ingredient for making malt drinks, chocolates and candies.

The breast milk contains the disaccharide -> lactose.

Lactose is very vital for the normal growth and development of infants.

In adults, disaccharides are non essential nutrients. This implies that we can live without them as adults.

Below is a summary of monosaccharides that make up disaccharides (double sugars).

  • Maltose = Glucose + Glucose

  • Lactose = Glucose + Galactose

  • Sucrose = Glucose + Fructose

Other examples of disaccharides include trehalulose and isomaltulose