Unit 3: The Senses

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| By Norie Portosa
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Norie Portosa
Community Contributor
Quizzes Created: 1 | Total Attempts: 73
Questions: 10 | Attempts: 73

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Unit 3: The Senses - Quiz


Questions and Answers
  • 1. 

    What is the organ of smell?

    • A.

      Nose

    • B.

      Tongue

    • C.

      Skin

    • D.

      Ears

    Correct Answer
    A. Nose
    Explanation
    The organ of smell is the nose. It contains olfactory receptors that detect and process different odors. When we inhale, the odor molecules enter the nasal cavity and stimulate these receptors, sending signals to the brain, which then interprets them as different smells. The nose also plays a role in our sense of taste, as the two senses are closely connected. The tongue, skin, and ears do not have the same specialized receptors for detecting smells as the nose does.

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  • 2. 

    These are protective part of the eyes that keep dust away from our eyes.

    • A.

      Eyelashes

    • B.

      Eyelids

    • C.

      Eyebrows

    • D.

      Tear glands

    • E.

      Both a and c

    Correct Answer
    E. Both a and c
    Explanation
    The correct answer is "both a and c" because both eyelashes and eyebrows serve as protective parts of the eyes. Eyelashes help to keep dust and debris away from the eyes by acting as a barrier, while eyebrows help to prevent sweat and other fluids from dripping into the eyes. Therefore, both eyelashes and eyebrows play a role in protecting the eyes from external particles.

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  • 3. 

    The part of the ear that sends information to the brain is ________

    • A.

      Small bones

    • B.

      Cochlea

    • C.

      Eardrum

    • D.

      Ear canal

    Correct Answer
    B. Cochlea
    Explanation
    The cochlea is the part of the ear that sends information to the brain. It is a spiral-shaped, fluid-filled structure in the inner ear that contains tiny hair cells. These hair cells convert sound vibrations into electrical signals, which are then transmitted to the brain via the auditory nerve. The cochlea plays a crucial role in the process of hearing and is responsible for allowing us to perceive different pitches and tones.

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  • 4. 

    The part of the nose where the olfactory area is located.

    • A.

      Nose

    • B.

      Olfactory

    • C.

      Nostril

    • D.

      Nasal cavity

    Correct Answer
    D. Nasal cavity
    Explanation
    The nasal cavity is the part of the nose where the olfactory area is located. It is a hollow space behind the nostrils and is lined with a specialized tissue called the olfactory epithelium. This tissue contains olfactory receptors, which are responsible for detecting and interpreting smells. The nasal cavity plays a crucial role in the sense of smell, as it allows airborne molecules to reach the olfactory receptors, triggering the perception of different odors.

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  • 5. 

    The organ for touch is ____________

    • A.

      Toes

    • B.

      Skin

    • C.

      Hands

    • D.

      Face

    Correct Answer
    B. Skin
    Explanation
    The skin is the organ responsible for the sense of touch. It contains numerous sensory receptors that detect different types of touch sensations such as pressure, temperature, and pain. These receptors send signals to the brain, allowing us to perceive and respond to our environment through the sense of touch. The skin covers the entire body and is the outermost protective layer, making it the organ primarily involved in the sense of touch.

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  • 6. 

    The 4 basic tastes are (tick 4 boxes)

    • A.

      Salty

    • B.

      Bitter

    • C.

      Soft

    • D.

      Sour

    • E.

      Sweet

    • F.

      Smooth

    Correct Answer(s)
    A. Salty
    B. Bitter
    D. Sour
    E. Sweet
    Explanation
    The correct answer is salty, bitter, sour, and sweet. These four tastes are considered the basic tastes because they are the primary flavors that our taste buds can detect. Salty taste is often associated with the presence of sodium, bitter taste is commonly found in substances like coffee or dark chocolate, sour taste is usually caused by acids, and sweet taste is associated with sugars. These four tastes provide a range of flavor experiences and are fundamental in our perception of taste.

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  • 7. 

    Smells can be ________ or ________

    Correct Answer(s)
    pleasant, unpleasant
    pleasant, unpleasant
  • 8. 

    The sense of hearing allows us to hear sounds.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The sense of hearing, also known as audition, enables us to perceive and process sound waves. It involves the complex mechanism of the ear, which captures sound vibrations and converts them into electrical signals that are then interpreted by the brain. Through hearing, we are able to detect and differentiate various sounds, including speech, music, and environmental noises. Therefore, the statement "The sense of hearing allows us to hear sounds" is true.

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  • 9. 

    The sense of smell is connected to sense of sight.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    taste

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