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Organization of the Organism

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

Cell structure and organisation

Subtopic

Cell structure and organisation under Organization of the Organism for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    A student views a cheek cell under a microscope. Which of these structures will they NOT be able to see?

    A.

    Nucleus

    B.

    Cell wall

    C.

    Cell membrane

    D.

    Cytoplasm

  2. 2.

    Which of the following parts of a cell is NOT found in a prokaryotic cell?

    A.

    DNA

    B.

    Cytoplasm

    C.

    Cell membrane

    D.

    Nuclear membrane

  3. 3.

    Which organelle is often referred to as the 'powerhouse' of the cell because it releases energy from food?

    A.

    Nucleus

    B.

    Ribosome

    C.

    Mitochondrion

    D.

    Vacuole

Download the worksheet for Organization of the Organism - Cell structure and organisation to practice offline. It includes additional chapter-level practice questions.

Levels of organisation

Subtopic

Levels of organisation under Organization of the Organism for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following is smaller than a tissue?

    A.

    An organ

    B.

    An organ system

    C.

    An organism

    D.

    A cell

  2. 2.

    The nervous system includes the brain, spinal cord, and nerves. Which level of organization does the spinal cord represent?

    A.

    Organ system

    B.

    Organ

    C.

    Tissue

    D.

    Organism

  3. 3.

    Which of these is the term for a structure made of different tissues that work together?

    A.

    Organism

    B.

    Organ system

    C.

    Organ

    D.

    Cell

Download the worksheet for Organization of the Organism - Levels of organisation to practice offline. It includes additional chapter-level practice questions.

Size of specimens (Magnification)

Subtopic

Size of specimens (Magnification) under Organization of the Organism for Grade 11 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which of the following describes the relationship between the three magnification variables?

    A.

    Image size is the product of magnification and actual size

    B.

    Magnification is the product of image size and actual size

    C.

    Actual size is the product of image size and magnification

    D.

    Image size is the sum of magnification and actual size

  2. 2.

    An image size is 2.4 cm2.4\ cm and the actual size is 0.12 cm0.12\ cm. What is the magnification?

    A.

    ×20\times 20

    B.

    ×2\times 2

    C.

    ×0.05\times 0.05

    D.

    ×200\times 200

  3. 3.

    What is 150 μm150\ \mu m expressed in millimeters (mmmm)?

    A.

    1.5 mm1.5\ mm

    B.

    0.15 mm0.15\ mm

    C.

    0.015 mm0.015\ mm

    D.

    15 mm15\ mm

Download the worksheet for Organization of the Organism - Size of specimens (Magnification) to practice offline. It includes additional chapter-level practice questions.