Science Form 3 Exercise With Answers

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Daniel P, MSEd, Science |
Science Education
Review Board Member
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.
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Science Form 3 Exercise With Answers - Quiz

Do you wish to practice science form 3? If you are intimidated by the title, take this science form 3 exercise with answers, and if into thinking that this quiz is easy or hard, you might just be surprised. Try it out and gauge your knowledge and information on the chapters. The quiz is all about your knowledge and practice. If you have enough information on these chapters and topics, you can easily ace the quiz. All the best for a perfect score.


Questions and Answers
  • 1. 

    The place where the exchange of gases takes place is/are the __________.

    • A.

      Rib

    • B.

      Bronchiole

    • C.

      Alveolus

    • D.

      Bronchus

    Correct Answer
    C. Alveolus
    Explanation
     The alveolus is a  tiny air sac in the lungs where the exchange of gases, specifically oxygen and carbon dioxide, occurs. Oxygen from the inhaled air diffuses into the bloodstream through the thin walls of the alveoli, while carbon dioxide, a waste product, diffuses out of the bloodstream into the alveoli to be exhaled. This exchange of gases is essential for respiration and supplying oxygen to the body's cells. The other options, rib, bronchiole, and bronchus, are not directly involved in the exchange of gases.

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  • 2. 

    The trachea branches into two. Each branch is called a bronchiole.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The trachea does not branch into bronchioles. After the trachea, it branches into two tubes called bronchi, which further divide into smaller tubes called bronchioles. 

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  • 3. 

    What organs are related to the respiratory system? (select three)

    • A.

      Aorta

    • B.

      Bronchus

    • C.

      Atrium

    • D.

      Nasal cavity

    • E.

      Alveolus

    Correct Answer(s)
    B. Bronchus
    D. Nasal cavity
    E. Alveolus
    Explanation
     The respiratory system is responsible for the intake of oxygen and carbon dioxide in the body. The nasal cavity is part of the respiratory system as it filters, warms, and moistens the air we breathe. The alveolus is a tiny air sac in the lungs where oxygen and carbon dioxide are exchanged with the bloodstream. The bronchus is a tube that carries air into the lungs. The aorta and atrium are not directly related to the respiratory system. The aorta is the main artery that carries oxygenated blood from the heart to the rest of the body, and the atrium is one of the chambers of the heart.

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  • 4. 

    The ribcage moves ......... and ......... when inhalation process.

    Correct Answer(s)
    upwards, outwards, Upwards, Outwards
    Explanation
    During the inhalation process, the ribcage moves upwards and outwards. This upward movement is due to the contraction of the diaphragm, a dome-shaped muscle located at the base of the ribcage. As the diaphragm contracts, it flattens and moves downwards, causing the ribcage to expand upwards. Simultaneously, the intercostal muscles between the ribs contract, pulling the ribs outwards. This combined movement of the ribcage allows for an increase in the volume of the thoracic cavity, creating a pressure gradient that facilitates the entry of air into the lungs.

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  • 5. 

     ...........can cause addiction when a person smokes cigarettes.

    Correct Answer(s)
    Nicotine
    Explanation
     Nicotine is a highly addictive substance found in tobacco products. It stimulates the release of dopamine in the brain, creating pleasurable feelings and reinforcing the desire to use it again. The addictive nature of nicotine can lead to dependence and cravings, making it difficult for individuals to quit smoking or using other nicotine products.

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  • 6. 

    Phloem transport _____

    • A.

      Water

    • B.

      Mineral salt

    • C.

      Food

    • D.

      Light

    Correct Answer
    C. Food
    Explanation
     Phloem tissue is responsible for the movement of food throughout a plant. It contains sieve tubes, which are specialized cells that transport sugars, amino acids, and other organic compounds produced during photosynthesis. These nutrients are transported from the leaves, where they are produced, to other parts of the plant, such as the roots, stems, and fruits, where they are needed for growth, energy, and storage.

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  • 7. 

    A person with an AB blood type can receive. (select that apply)

    • A.

      O blood

    • B.

      A blood

    • C.

      AB blood

    • D.

      B blood

    Correct Answer(s)
    A. O blood
    B. A blood
    C. AB blood
    D. B blood
    Explanation
    A person with AB blood type can receive O blood, A blood, AB blood, and B blood because AB blood type is considered the universal recipient. AB blood group does not contain antibodies against A or B antigens, allowing them to receive blood from any blood type without an adverse reaction. O blood type is compatible because it does not have A or B antigens, A blood type is compatible because it only has A antigens, AB blood type is compatible because it has both A and B antigens, and B blood type is compatible because it only has B antigens.

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  • 8. 

    The O blood type is known as the universal recipient.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The O blood type is not known as the universal recipient. The O blood type is known as the universal donor because it lacks both A and B antigens on the red blood cells, making it compatible with all other blood types.

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  • 9. 

    The ............ transports deoxygenated blood from all parts of the body to the right atrium.

    Correct Answer
    Vena cava
    Explanation
    The vena cava is a large vein that carries deoxygenated blood from all parts of the body back to the right atrium of the heart. There are two branches of the vena cava: the superior vena cava, which receives blood from the upper body, and the inferior vena cava, which receives blood from the lower body. Together, they ensure that deoxygenated blood is returned to the heart to be pumped to the lungs for oxygenation.

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  • 10. 

    Kidneys consist of all these parts, except

    • A.

      Medulla

    • B.

      Urinary bladder

    • C.

      Pelvis

    • D.

      Cortex

    Correct Answer
    B. Urinary bladder
    Explanation
    The urinary bladder is not a part of the kidneys. The kidneys are responsible for filtering waste products from the blood and producing urine, while the urinary bladder is a separate organ that stores urine before it is eliminated from the body. The other options, medulla, pelvis, and cortex, are all parts of the kidneys. The medulla is the innermost region, the pelvis is the central cavity that collects urine before it is transported to the bladder, and the cortex is the outer layer of the kidneys where filtration takes place.

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  • 11. 

    The human excretory system consists of these organs (select all that apply).

    • A.

      Renal artery

    • B.

      Renal vein

    • C.

      Lung

    • D.

      Urethra

    • E.

      Skin

    • F.

      Kidneys

    • G.

      Mouth

    • H.

      Urinary bladder

    • I.

      Ureters

    • J.

      Pelvis

    Correct Answer(s)
    A. Renal artery
    B. Renal vein
    D. Urethra
    E. Skin
    F. Kidneys
    H. Urinary bladder
    I. Ureters
    Explanation
    The human excretory system consists of several organs and structures that work together to remove waste products from the body. The kidneys are the main organs responsible for filtering waste from the blood and producing urine. The renal artery and renal vein are blood vessels that supply and drain blood to and from the kidneys. The urethra is a tube that carries urine from the bladder to the outside of the body. The urinary bladder is a muscular sac that stores urine until it is ready to be expelled. The ureters are tubes that transport urine from the kidneys to the bladder. While the skin is primarily associated with functions such as temperature regulation and protection, it also plays a role in excretion through the sweat glands. Sweat contains water, salts, and small amounts of waste products like urea, providing another route for waste removal.

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  • 12. 

    Resin is an excretory product of rubber trees.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Resin is not an excretory product of rubber trees. Resin is a sticky substance that is produced by certain plants as a protective coating for wounds or as a defense against insects or pathogens. It is not directly related to rubber trees, which produce latex as their excretory product.

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  • 13. 

     Which microorganism utilizes budding as a means of reproduction?

    • A.

      Amoeba

    • B.

      Yeast

    • C.

      Mould

    • D.

      Planaria

    Correct Answer
    B. Yeast
    Explanation
    The term "budding" refers to a form of asexual reproduction where a smaller organism grows out of the body of a larger organism. Yeast is a type of fungus that reproduces through budding, where a small bud grows out of the parent cell and eventually detaches to become a new individual. Amoebas, moulds, and planaria reproduce through other methods such as binary fission or fragmentation, making yeast the only organism in the given list that exhibits budding.

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  • 14. 

     Choose the types of asexual reproduction (choose all that apply).

    • A.

      Binary Fission

    • B.

      Respiration

    • C.

      Regeneration

    • D.

      Photosynthesis

    Correct Answer(s)
    A. Binary Fission
    C. Regeneration
    Explanation
    The correct answer is binary fission and regeneration. Binary fission is a type of asexual reproduction where a single organism divides into two identical daughter cells. Regeneration is another type of asexual reproduction where an organism can regrow lost or damaged body parts to form a complete individual. Both binary fission and regeneration are common methods of asexual reproduction in various organisms.

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  • 15. 

    The penis produces sperm.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    The penis is an external reproductive organ in males that is responsible for delivering sperm into the female reproductive system. Sperm is actually produced in the testes, which are located inside the scrotum, a sac-like structure below the penis.

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Daniel P |MSEd, Science |
Science Education
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.

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  • Feb 12, 2024
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  • Mar 04, 2011
    Quiz Created by
    Asad_dun
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