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    Monday, 5 September 2016

    RUNZ: Biology Practical Waec GCE 2016 Free Expo Answers

    1a)
    (i)Onion bulb
    (ii)Bulb
    (iii)It has a swollen stem
    (iv)

    I-Membraneous leaves
    II-Outer scaly leaves
    III-Thick fleshy storage leaves
    IV-Auxillary buds
    V-stem
    VI-Roots
    v)It is stored in the fleshy leaves
    vi)
    II-It protect the inner leaves
    III-It stores food for the plant
    VI-It absorbs nutrients from the soil


    (1b)
    (i)Epicarp
    (ii)Mesocarp
    (iii)Endocarp
    (iv)Hollow containig water

    i-protects the seed and makes fruit to float on water
    ii-makes the fruit to be bouyant in water during dispersal
    *Fleshy drupe
    -It is fleshy
    -It consists of epicarp,mesocarp and endocarp ie thin epicarp,fibrous mesocarp
    *Palm nut,mango
    *water,man
    vii)
    -It is used as food for man
    -It is used as an ornament plant
    It is used for making oil
    -The fibrous mesocarp is used for cooking




    (2a)
    i)Arthropoda
    ii)Insecta

    (2b)
    i)For phylum:
    -Presence of jointed appendages
    -Presence of chitinous exoskeleton
    ii)For class
    -Presence of three pairs of walking legs
    -Presence of segemented body parts

    (2c)
    i)Organism D is male
    ii)Presence of anal style

    (2d)
    i)D has anal style while G does not
    ii)The terminal end of G's abdomen is modified into a boat like structure for carrying egg case
    iii)D has larger antennae

    (2e)
    i)D has wings for flight and escape production
    ii)F is smaller and could hide easily in crevices
    =================


    (4ai)
    I-Foilage leaf
    II-Epicetyl
    III-Tap root
    Iv-Routlets
    V-Split testa
    VI-Radicle
    VII-Cotyledon

    (4aii)
    I-It is the primitive leaf which manufactures food for the seedling
    II-It functions as the primitive stem for seedling
    V-It protect the inner parts of the seedling before germination
    IV-It absorbs nutrients from the soil
    VII-It provides food for germination
    VI-It grows to form the root of the seedling

    (4bi)
    Epigeal germination

    (4bii)
    Cowpea,groundnut,castor

    (4biii)
    -The seed requires warmth,water,viable seeds etc for germiation
    -The seed absorbs moisture and become swollen
    -The seed splits ,the radicle grows to form the root while the plumule form the shoot

    (4ci)
    It is carried above the soil level as a result of elongation of the epicotyl

    (4cii)
    Cotyledon

    (4ciii)
    Carbonhydrate

    (4d)
    -Viable seeds
    -Warmth
    -Moisture
    -Enzymes

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