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2. Organisation of the organism

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2 topics · 10 learning objectives

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  1. 2.1 Cell structure

    1. 2.1.1Structure of a plant cell

      • Describe and compare the structure of a plant cell with an animal cell, limited to: cell wall, cell membrane, nucleus, cytoplasm, chloroplasts, ribosomes, mitochondria, vacuoles

    2. 2.1.2Structure of a bacterial cell

      • Describe the structure of a bacterial cell, limited to: cell wall, cell membrane, cytoplasm, ribosomes, circular DNA, plasmids

    3. 2.1.3Identify cell structures

      • Identify the cell structures listed in 2.1.1 and 2.1.2 in diagrams and images of plant, animal and bacterial cells

    4. 2.1.4Functions of cell structures

      • Describe the functions of the structures listed in 2.1.1 and 2.1.2 in plant, animal and bacterial cells

    5. 2.1.5Cell division makes new cells

      • State that new cells are produced by division of existing cells

    6. 2.1.6Specialised cell functions

      • State that specialised cells have specific functions, limited to: (a) ciliated cells – movement of mucus in the trachea and bronchi (b) root hair cells – absorption (c) palisade mesophyll cells – photosynthesis (d) neurones – conduction of electrical impulses (e) red blood cells – transport of oxygen (f) sperm and egg cells (gametes) – reproduction

    7. 2.1.7Meaning of the terms: cell, tissue

      • Describe the meaning of the terms: cell, tissue, organ, organ system and organism as illustrated by examples given in the syllabus

  2. 2.2 Size of specimens

    1. 2.2.1Magnification formula

      • State and use the formula: magnification = image size ÷ actual size

    2. 2.2.2Magnification and size of biological

      • Calculate magnification and size of biological specimens using millimetres as units

    3. 2.2.3mm and micrometre conversions

      • Convert measurements between millimetres (mm) and micrometres (μm)