Nabteb Gce 2017 Biology Practical Answers – Nov/Dec Expo - Gidifans

You Are Here: Home » Exam - Nabteb Gce » Nabteb Gce 2017 Biology Practical Answers – Nov/Dec Expo - By Mr. Maraj On November 13, 2017 At 5:43 pm


1a)
i)stigma
ii)style
iii)filament
iv)anther
v)ovary

1b)
i)lassa fever
ii)human immunodeficiency virus(HIV)

1c)
i)discouragement of deforestation
ii)formation of strict law purnishment for illegal removal of plants and bush burning

1d)
i)transportation of end products of digested food (plasma)
ii)they serve as a defence of the body against disease (white blood cell)

1e)
i)protozoa (chlamydomonas)
ii)bacteria (cyanobacteria = blue-green algae)

1f)
ecosystem

1g)
i)prevention of overgrazing
ii)discouragement of deforestation and planting of canopy trees

1h)
i)it reduces/kills the living organism of the soil surface
ii)it aid reduction of soil fertility

1i)
i)affect the availability of nitrogen to improve chlorophyl function
ii)leads to low products of crops

1j)
i)using wood as fuel
ii)construction of structures

1k)
i)smoke contains some green house gases which deplete the ozone layer
ii)both affect the aspiration of organism when released to the environment and micro-organisms are voided in dust

1l)
i)Hinge joint
ii)Hinge joint



2a)
i)peeling of tuber to expose the food stored
ii)grinding of the peeled part
iii)squeez of grinded cassava to remove/reduce starch
iv)sieving of dry grinded powder to seperate particles
v)frying of fine practicles
vi)final sieving to remove larger particles hence ready for consumption and sales

2b)
i)rodent e:g giant africa rat
ii)viral e:g mosaic viral
iii)insect e:g locust feeding on leave

2c)
i)cassava mosale
ii)leaf blight of cassava

2d)
i)to enhance better exposure of leaves to sunlight
ii)to help support the growth of plant stem
iii)to help expose the yam base for removal of weeds and maintenance

2e)
i)cutting from ripe tubers
ii)by sowing the seed



3ai)
euglena
3aii)
1.flagellum
2.eyespot
3.paramylum granule
4.pellicle
5.nucleus
6.food vacuole
7.contractile vacuole
8.eyespot

3bi)
Holozoic
3bii)
flagelium
3biii)
2.it is used for detecting light
3.it is used for storage of starch
6.it is used for food storage

3biv)
plant:
i)possession of food vacuole
ii)possession of paramylum granule
Animal:
i)possession of flagellum



4ai)
IDENTIFY FIGS. IX-XIII WITHOUT REASONS
IX.cashew fruit
X.mango fruit
XI.okra fruit
XII.cowpea fruit
XIII.tomato fruit
4aii)
LABEL THE PARTS A-J
a.stalk
b.cashew fruit part
c.seed
d.seed
e.endocarp
f.pericarp
g.mesocarp
h.epiderm
i.seed on the placenta
j.endoderm

4b)
ix)nut (dry indehicent fruit)
x)drupe (true fleshy fruit)
xii)berry (true fleshy fruit)
4bii)
fg x) man
fg xii) animal (e:g cow)



5ai)
xiv)axis vertebra (latera veiw)
xv)thoracic vertebra (side veiw)
xvi)lumber vertebra (posterior view)
5aii)
1.neutra spine
2.post zygapophysis
3.facet for atlas
4.neutral spine
5.transverse process
6.centrum
7.neutral spine
8.neutral arch
9.neutra canal
10.transverse process

5bi)
XIV = it allows the head to be turned easily
XV = it aids the attachment of the ribs
XV = it assists in breathing alongside with the ribs
XVI = it provide attachment for abdominal muscles

5bii)
XIV = neck region
XV = chest (after the neck at the spinal column)
XVI = abdominal muscles

5ci)
XIV(AXIS)
i)absence of centrum
ii)possession of post zygapophysis
iii)absence of transverse process

XVI(LUMBER)
i)presence of centrum
ii)absence of post zygapophysis
iii)possession of transverse process



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