The Cell Book Back Questions & Answers

Unit 5 > Science > Class 6 > Samacheer Kalvi - English Medium

    Choose the correct answer

  • 1. The unit of measurement used for expressing dimension (size) of cell is ____

    a. centimeter

    b. millimeter

    c. micrometer

    d. meter

    Correct answer: c. micrometer

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  • 2. Under the microscope Priya observes a cell that has a cell wall and distinct nucleus. The cell that she observed is

    a. a plant cell

    b. an animal cell

    c. a nerve cell

    d. a bacteria cell

    Correct answer: a. a plant cell

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  • 3. A control centre of the eukaryotic cell is

    a. Cell wall

    b. Nucleus

    c. Vacuoles

    d. Chloroplast

    Correct answer: b. Nucleus

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  • 4. Which one of the following is not an unicellular organism?

    a. Yeast

    b. Amoeba

    c. Spirogyra

    d. Bacteria

    Correct answer: c. Spirogyra

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  • 5. Most organelles in a eukaryotic cell are found in the

    a. Cell wall

    b. cytoplasm

    c. nucleus

    d. Vacuole

    Correct answer: b. cytoplasm

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  • Fill in the blanks

  • 1. The instrument used to observe the cell is _____

    Correct answer: microscope

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  • 2. I control the food production of a cell. Who am I? ____

    Correct answer: Chloroplast

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  • 3. I am like a policeman. Who am I ____?

    Correct answer: cell wall

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  • 4. The Term cell was coined by ______

    Correct answer: Robert Hooke

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  • 5. The egg of an Ostrich is the ___________ single cell.

    Correct answer: largest

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  • True or false

  • 1. A cell is the smallest unit of life.

    Correct answer: True

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  • 2. Nerve cell is the longest cell

    Correct answer: True

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  • 3. Prokaryotes were the fi rst form of life on earth

    Correct answer: True

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  • 4. The organelles of both plants and animals are made up of cells.

    Correct answer: False

    Correct Statement: The cells of both plants and animals are made up of organelles

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  • 5. New cells are produced from existing cells.

    Correct answer: True

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  • Match the following

  • 1. Control center

    Correct answer: Nucleus

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  • 2. Food producer (Plant cell)

    Correct answer: Chloroplasts

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  • 3. Gate of the nucleus

    Correct answer: Nuclear membrane

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  • 4. Gate of the cell

    Correct answer: Cell membrane

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  • 5. Energy producer

    Correct answer: Mitochondria

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  • Arrange in a correct sequence

  • 1. Elephant, Cow, Bacteria, Mango, Rose plant.

    Correct answer: Bacteria, Rose plant, Mango, Cow, Elephant

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  • 2. Hen Egg, Ostrich egg, Insect egg.

    Correct answer: Insect egg, Hen egg, Ostrich egg.

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  • Analogy

  • 1. Prokaryote : Bacteria :: Eukaryote :_______

    Correct answer: Plant and Animal cell

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  • 2. Spirogyra : Plant cell :: Amoeba : ______

    Correct answer: Animal cell

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  • 3. Food producer : Chloroplasts :: Power house :____

    Correct answer: Mitochondria

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