2022 NECO GCE Biology Practical Answers [23rd November]

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NECO GCE 2022 FREE BIO PRACTICALS (BIO) QUESTION AND ANSWER ROOM 

 
Wednesday 23rd November
Biology Paper I (Alternative to Practical)
2:00pm – 4:00pm

NECO GCE BIOLOGY PRACTICAL ANSWERS 2022:

(1ai)
A - Housefly
B - Spider

(1aii)
A - Insecta
B - Arachnida

(1aiii)
A:
(i) It has three pairs of legs
(ii) Possession of three body segment

B:
(i) It has four pairs of legs
(ii) Possession of two body segment

(1aiv)
I - Antennae
II - Eye
III - Hind leg
IV - Leg
V - Cephalothorax
VI - Abdomen

(1av)
I - For sensitivity
II - For sight
III - For movement

(1avi)
Tabulate

A:
(i) Possession of wings
(ii) Possession of compound eyes

B:
(i) Absence of wings
(ii) Possession of simple eyes

(1avii)
(i) Head
(ii) Thorax
(iii) Abdomen

(1aviii)
(i) Wing
(ii) Mouthpart

(1bi)
Oxygen

(1bii)
(i) The experiment must be done during the day.
(ii) There must be presence of water.

(1bii)
Experiment to show that oxygen is liberated during photosynthesis.

(2ai)
D - Maize seedling plant
E - Monocot root

(2aii)
I - Tassel
II - Flag leaf
III - Leaf
IV - Styles
V - Female inflorescence

(2aiii)
Tassel, female inflorescence, ovary

(2bi)
VII

(2bii)
Phloem

(2biii)
VI

(2ci)
VII
(i) Absorption of water and nutrient
(ii) It provides support

VIII
(i) Maximise the roots water
(ii) Absorption of mineral

(2cii)
(i) They possesses long stigma
(ii) Possession of feathery flowers
(iii) Possession if one reproductive organ

(2di)
F - Webbed feet
G - Non webbed feet

(2dii)
I - Hind toe
II - Web foot
III - Claw

(2diii)
It enables them to float on water

(3ai)
H - Microscope
I - Filoplume feather

(3aii)
I - Lens
II - Coarse focusing mechanism
III - Objective lens
IV - Arm

(3aiii)
1 - Paramecium
2 - Bacteria

(3aiv)
(1) Always keep it covered when not in use
(2) Turn off light source when it is not in use.

(3av)
(1) Always use two hands when moving the microscope.
(2) Make sure the microscope is not plugged in before moving it.
(3) Store in a clean, dry place

(3bi)
VIII - Outer web or vane
IX - Barbs
X - Rachis or shaft

(3bii)
Pigeons

(3biii)
(i) It is used for flight
(ii) To conserve body heat
(iii) It is also used for sexual display

(3ci)
To avoid the presence of sunlight

(3cii)
It helps in absorption of carbon in the leaves

(3ciii)
(1)
It will remain yellowish in colour indicating the absence of starch

(2)
It will change  blue black indicating the presence of starch

(3civ)
Starch present

NECO GCE 2022 BIOLOGY PRACTICAL QUESTIONS

 

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