Science G5 , Oct. 01 Till Oct. 05, 20

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| By Maktoum
Community Contributor
Quizzes Created: 1 | Total Attempts: 260
Questions: 13 | Attempts: 260

Science  G5 , Oct. 01 Till Oct. 05, 20 - Quiz

Questions and Answers
  • 1. 

    1. All the muscles in an organism form the [...............] system.

    The term "muscular" refers to the system in an organism that includes all the muscles. This system is responsible for movement, stability, and generating heat in the body. Muscles are made up of specialized cells that contract and relax to produce force and motion. The muscular system works in coordination with other systems, such as the skeletal and nervous systems, to allow for voluntary and involuntary movements.

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  • 2. 

    2. G The main function of the muscular system is to create [.................] 

    The main function of the muscular system is to create movement. Muscles are responsible for contracting and relaxing, which allows for movement of body parts. This movement can be voluntary, such as when we walk or lift objects, or involuntary, such as the beating of the heart or digestion. Without the muscular system, our bodies would not be able to move or perform essential functions.

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  • 3. 

    3. Muscular system contains skeletal, cardiac, and [...............] muscles.

    The muscular system contains skeletal, cardiac, and smooth muscles.

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  • 4. 

    Muscles that move when you direct them are [...............]. Humans can control voluntary muscles but muscles that we cannot control are involuntary muscles. 

    Voluntary muscles are the muscles that we can control consciously. These muscles are under our direct control and allow us to move and perform actions according to our will. On the other hand, involuntary muscles are not under our conscious control and function automatically, such as the muscles that control our heartbeat or digestion. Therefore, the correct answer is "voluntary" as it accurately describes the muscles that move when directed by our conscious effort.

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  • 5. 

    Voluntary muscles attached to bones are [................] muscles that move when you direct them. 

    Skeletal muscles are voluntary muscles that are attached to bones and allow movement when directed. These muscles are under conscious control and are responsible for movements such as walking, running, and lifting weights. They work in pairs, with one muscle contracting while the other relaxes, allowing for coordinated movement. Skeletal muscles are striated in appearance due to the arrangement of their fibers and are the most abundant type of muscle in the body.

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  • 6. 

    6. G Bands of connective tissue that connect skeletal muscles to bones are called [...............]. 

    Tendons are bands of connective tissue that connect skeletal muscles to bones. They play a crucial role in transmitting the force generated by muscles to the bones, allowing for movement and stability. Tendons are strong and flexible, enabling them to withstand the tension and stress placed on them during muscle contraction. Without tendons, muscles would not be able to effectively move the bones they are attached to, resulting in impaired movement and functionality.

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  • 7. 

    7................... muscles contract, pull on tendons which pull on bones and make them move. 

    Skeletal muscles are responsible for the movement of bones in the body. When skeletal muscles contract, they pull on tendons, which in turn pull on bones, causing them to move. This is how voluntary movements, such as walking or lifting objects, are achieved in the body.

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  • 8. 

    Humans move their bodies by contracting [..............] muscles which allow movement such as running, kicking a ball... 

    The correct answer is "skeletal" because skeletal muscles are responsible for the voluntary movement of the human body. These muscles are attached to the bones and allow us to perform activities like running and kicking a ball. Skeletal muscles work by contracting and relaxing, causing movement in the body.

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  • 9. 

    [.................] muscles are involuntary muscles that surround many internal organs such as stomach, esophagus, and intestines.(The muscles that move food along your digestive system are involuntary/smooth muscles). 

    Smooth muscles are the correct answer because they are involuntary muscles that surround internal organs like the stomach, esophagus, and intestines. These muscles are responsible for moving food along the digestive system. Unlike skeletal muscles, which are voluntary and under conscious control, smooth muscles work automatically and are not consciously controlled. Therefore, smooth muscles are the appropriate muscles for this function.

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  • 10. 

    10. G An involuntary muscle found only in the heart is the [.............] muscle. 

    The correct answer is "cardiac." This answer is correct because the question states that the muscle being referred to is involuntary and found only in the heart. The term "cardiac" specifically refers to the heart, so it is the appropriate answer in this context.

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  • 11. 

    [..................] muscle keeps on working all the time (never stops to rest). It causes the heart to beat and to pump blood. 

    The correct answer is "Cardiac". The explanation for this answer is that the cardiac muscle is responsible for the continuous contraction and relaxation that keeps the heart beating and pumping blood throughout the body. Unlike skeletal muscles, which can rest and relax, the cardiac muscle never stops working to ensure the continuous circulation of blood.

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  • 12. 

    He skeleton protects the soft organs inside the body:
    •   [................] surround and protect the spinal cord
    •   [................] protects the brain
    •   [.............] protect the heart and lungs 

    The skeleton protects the soft organs inside the body. The vertebrae surround and protect the spinal cord. The skull protects the brain. The ribs protect the heart and lungs.

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  • 13. 

    1. 6. G [...............] makes bones strong and hard on the outside. 

    Calcium is a mineral that plays a crucial role in making bones strong and hard on the outside. It is an essential nutrient for maintaining healthy bones and teeth. Calcium is necessary for bone formation and helps in the development and maintenance of bone structure. It also helps in preventing osteoporosis, a condition characterized by weak and brittle bones. Therefore, the presence of calcium in the blank would provide the necessary strength and hardness to the bones.

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