Basic Science

Len Academy questions for Basic Science JSS1, second Term

len Alfred Ajibola - Mon, 15th July, 2019 @ 16:45

Topics in Basic Science

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Academic Questions in Basic Science

Please check out our Test Your Knowledge page to see all Questions and Answers

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, JSS1, 2nd Term:

1. Which of the following is a particulate nature of matter?

  1. Compounds
  2. Ions
  3. Mixtures
  4. Valency

 

2. The immediate process that leads to the precipitation of rain from the cloud is termed _____.

  1. sublimation
  2. solidification
  3. condensation
  4. vaporization

 

3. Which of the following is NOT a physical change?

  1. Melting of ice
  2. NaCl dissolved in water
  3. Melting of margarine
  4. Rotting of fruits
  5. Please read on Physical Change for correct Answer.

 

4. The aspect of science that deals with the study of matter and the changes they undergo is _____.

  1. Biology
  2. Chemistry
  3. Physics
  4. Geography

 

5. Plasma changes to gas via the process of _____.

  1. ionization
  2. deionization
  3. deposition
  4. sublimation

 

6. Which of the following organism is NOT a protist?

  1. Euglena
  2. Chlamydomonas
  3. Blue Green Algae
  4. Trypanosoma
  5. Please read on Protists for correct Answer.

 

7. Kingdom _____ contains autotrophic organisms.

  1. fungi
  2. protozoa
  3. plantae
  4. animalia
  5. Please read on Autotrophic Nutrition for correct Answer.

 

8. The _____ traps radiant energy from the sun.

  1. mitochondria
  2. ribosome
  3. chlorophyll
  4. vacuole

 

9. The reproductive organ in plants is the _____.

  1. leaves
  2. stem
  3. bark
  4. flower
  5. Please read on Sexual Propagation (Reproduction) in Plants for correct Answer.

 

10. The followings are gamete EXCEPT _____.

  1. ovary
  2. pollen grains
  3. ova
  4. sperm

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

11. Cell wall found in plants is composed of _____.

  1. starch
  2. cellulose
  3. glycogen
  4. sugar

 

12. The _____ is the power house of the cell.

  1. nucleus
  2. cell wall
  3. cell membrane
  4. mitochondria
  5. Please read on the Characteristics of Living Organisms for correct Answer.

 

13. The by-product of photosynthesis is _____.

  1. CO2
  2. O2
  3. Sugar
  4. H2O
  5. Please read this Article for the correct Answer to this Question.

 

14. Which of the following is not a resource from plant?

  1. Milk
  2. Timber
  3. Cotton
  4. Herbs

 

15. The locomotory organelle found in paramecium is the _____.

  1. flagella
  2. cilia
  3. pseudopodium
  4. flame cell
  5. Please read this Article for the correct Answer to this Question.

 

16. Locomotion will not include _____.

  1. wriggling
  2. crawling
  3. bending
  4. flying

 

17. The energy currency in the body is _____.

  1. glucose
  2. galactose
  3. fructose
  4. ATP
  5. Please read on Food (Carbohydrates and Sugars) for correct Answer.

 

18. An organism that respirate anaerobically is the _____.

  1. amoeba
  2. yeast
  3. euglena
  4. moss

 

19. The respiratory organ in a cockroach is the _____.

  1. lung-book
  2. tracheae
  3. trachea
  4. gills

 

20. The removal of solid undigested materials from the anus is termed _____.

  1. excretion
  2. egestion
  3. digestion
  4. absorption

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

21. Buccal respiration involves the use of the _____.

  1. mouth
  2. lungs
  3. gills
  4. skin

 

22. The organism that suffers in a parasitic association is termed the _____.

  1. parasite
  2. saprophyte
  3. heterotrophy
  4. host
  5. Please read on Food Vectors of Diseases for correct Answer.

 

23. Lenticels in plants are found in the _____.

  1. leaves
  2. stem
  3. root
  4. flowers

 

24. An animal without canines is the _____.

  1. herbivore
  2. omnivore
  3. carnivore
  4. none of the above

 

25. An asexual reproduction seen in hydra is the _____.

  1. binary fission
  2. binary fusion
  3. budding
  4. vegetative propagation

 

26. Animals that give birth to their young ones alive are said to be _____.

  1. oviparous
  2. ovoviviparous
  3. viviparous
  4. all of the above

 

27. Urea is synthesized mainly in the _____.

  1. kidneys
  2. bladder
  3. urethra
  4. liver

 

28. The excretory organelle in an amoeba is the _____.

  1. body surface
  2. stomata
  3. cell membrane
  4. contractile vacuole

 

29. Cell _____ is the basis of growth in living organism.

  1. multiplication
  2. addition
  3. division subtraction
  4. subtraction

 

30. Which of the followings is NOT a basic characteristic of living organisms?

  1. photosynthesis
  2. adaptation
  3. competition
  4. death

 

You can Attempt Len Academy Mid Term Test Questions for JSS1 here.

You can attempt Len Academy Agric Science Questions for JSS1, 1st Term here.

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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 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


NOTABLE POINTS IN Basic Science

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

Polysaccharides are complex sugars. These are what we often eat whenever we eat carbohydrates.

We have four types of polysaccharides namely:

  1. Starch

  2. Glycogen

  3. Chitin

  4. Cellulose

Starchy foods include rice, cassava and yam.

Glycogen is stored in the human liver; as a result of the joining of many glucose molecules.

Chitin is a major component of insect and anthropod's skeleton.

Cellulose is a major component of a plant's cell wall. They cannot be digested when eaten by humans; hence they function as roughages.

Roughages are not classified as one the classes of food in humans. This is due to the fact that they aren't digested. They will rather facilitate the movement of bowels in the large intestine (colon). For this reason, they can be very useful in treating constipation.

Please read more on carbohydrates here