Characteristics of the plant groupsANSWER 2007

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    Characteristics of the plant groups

    ANSWER 2007

    Hyper-linked film clips are available in

    MKC campus only

    [Textbook p.90 Activity : Demonstration of a variety of plant types.

     Other organisms : Virus(es), bacterium (bacteria). of plants.htm

    Plants have



    Cell wall


    Non-flowering plants

Flowering plants



    roots, stems, leaves

    vascular tissues



    herb(s) .. herbaceous


    There are two types of flowering plants : Type of flowering 單子葉植物 雙子葉植物


    Monocotyledon Dicotyledon

    Number of seed leaf one two

    Venation parallel net

    Type Herb(s) Trees,




    Example Grass Broad

    Orchid bean

    Maize Sunflower

    rice Water lily

    Non-flowering plants

    Major types :

    Fungus (Fungi), Alga (Algae), Moss(es)

    Fern(s), Gymnosperm(s)

    FUNGI do not belong to the plant kingdom

     A film to introduce Fungi (Japanese), interesting ! ; No roots, stems or leaves. ; made up of thread-like hypha(e) 菌絲

     (plural : hyphae.)

    ; Non-green : no chlorophyll.

    ; Mostly saprophytic.腐生

    ; Some are parasitic.

    ; Both microscopic and large.

    ; Some can produce useful medicine(s),

     e.g. Penicillium produce penicillin.

     盤尼西林 ; Mushroom(s) are edible.

     EXAMPLES : bread mould,

     Penicillium, yeast 酵母,


Alga(e), many are members of the

    Kingdom Protoctist ; Simple plants without roots, stems and leaves.

    ; live in water , i.e. they are aquatic. ; contain photosynthetic pigments. ; are mostly green , but some are brown or red. ; are important producer(s), they are foods for


    ; are foods for humans too, e.g. seaweeds 海藻

     are commonly eaten in the East.

     EXAMPLES : Spirogyra, seaweeds (e.g. 紫菜)

Moss(es) 苔蘚


    ; are small green plants with simple stems, and leaves but no


    ; use simple rhizoid(s) to absorb water and minerals. ; use simple rhizoids to attach themselves to the ground. ; have no vascular tissues

    ; are found in damp (= wet) and shady (= not bright)


    ; form a “ green carpet ” on the forest floor.

Lichens ( ), 地衣 textbook p.130

    \\MKC_vs2\Video\Biological Sciences, 生命科學\Film segments電影片段 (CE and AL)\Lichen (basic fact + urban lichens) (this hyperlink works)

    100 years old lichens lying on the rock beside our reservoir

; are made up of both algae and fungi.

    ; are found on rock surface and tree trunk. ; are killed by a small amount of air pollutant(s). ; are “ biological indicators ” of the degree of


Ferns ; have true roots stems and leaves.

    ; have finely divided compound leaves.

    ; have their young leaves curled ( = folded up).

    ; produce spore(s) under their leaves

     for reproduction.

    ; Each spore grows to a new plant.

    ; are large because they are supported by

     vascular tissue(s)..

     Vascular tissues have two major functions :

    ; support

    ; transport (of water and mineral salts and

    organic foods)

    ; grow mainly in shady places (damp)


    (The prefix “ gymno ” means naked, think of gymnasium.) ; are large woody plants with true roots, stems and leaves. ; have “ vascular tissues ”.

    ; bear cones which are reproductive bodies that have

     naked seeds.

    ; are evergreen

    ; have needle- shaped leaves.


     Pine , China fir, cypress柏樹

Other organisms : Virus(es), bacterium (bacteria).

    Activity : Demonstration of a variety of plant types. Servers audio-visual materials.

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