This is to inform all students preparing for the 2024 NECO SSCE exams and the school administrators that the June/July NECO Biology practical Questions and Answers for 2024 are now available. The exam will commence on Tuesday 26th June 2024.
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NECO 2024 Update
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Free 2024 NECO Biology practical Questions and Answers | June/July EXPO:
Paper I Practical – Biology (2 hrs) (10:00 am – 12:00 noon)
NOTE: NECO June/July 2024 Free Practical – Biology Question and Answer Room: Pay just N1,500! Click on the link below to WhatsApp us and get the answers at 12 midnight. Prepare effectively and ensure your success in the exam with our comprehensive resources.
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2024 NECO BIOLOGY PRACTICAL ANSWERS [26TH JUNE, 2024]
BIOLOGY (PRACTICAL)
NUMBER 1
(1ai)
Specimen A – onion (bulb)
Specimen B – Ginger (Rhizome)
Specimen C – Irish potato (tuber)
Specimen D – Potted bean seedlings (A week old)
Specimen E – Maize grain
(1aii)
Specimen A – By bulbs
Specimen B – By Rhizomes
Specimen C – By tubers
(1aiii)
(1aiv)
Specimen D – Epigeal germination
Specimen E – Hypogeal germination
(1av)
-Specimen D-
(PICK ANY TWO)
(i) The cotyledons are brought above the ground during germination.
(ii) The hypocotyl elongates and arches, forming a hook.
(iii) The hook grows upward until it reaches the surface of the soil.
(iv) The cotyledons then spread out and become the first leaves of the plant.
-Specimen E –
(PICK ANY TWO)
(i) The cotyledons remain below the ground during germination.
(ii) The epicotyl elongates and arches, forming a hook.
(iii) The hook grows upward until it reaches the surface of the soil.
(iv) The cotyledons then spread out and become the first leaves of the plant.
(1avi)
Specimen D – Tap root system
Specimen E – Adventitious root system
(1avii)
Specimen D – Pinnate venation
Specimen E – Parallel venation
(1aviii)
Specimen A – scales
Specimen B – Rhizome
Specimen C – Eyes
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NUMBER 2
(2ai)
Specimen; F – Pigeon’s head with the neck
Specimen; G- Atlas vertebra of a Rabbit
Specimen; H- Lumbar vertebra of a Rabbit
Specimen; I-Cactus plant
Specimen; J – Water lettuce
(2aii)
To support the head and allow for flexibility and movement of the neck.
(2aiii)
Specimen G:
First cervical vertebra (C1), located at the base of the skull
Specimen H:
Located in the lower back region, between the ribcage and the pelvis (L1-L7)
(2aiv)
Occipital bone
(2av)
(2avi)
Mammalia.
(2avii)
Specimen I; Cactus plant
(i)Stem succulence (ability to store water in the stem)
(ii)Spines (reduce water loss through transpiration)
(iii)Deep roots (access water deep in the soil)
Specimen J; Water lettuce
(i)Floating leaves (allow the plant to stay afloat on the water surface)
(ii)Long stems (allow the plant to absorb nutrients from the water)
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NUMBER 3
(3ai)
Specimen; K-Ripe Tomato fruit
Specimen; L – Ripe Palm fruit
Specimen; M-Ripe Tridax fruit
Specimen; N – Ripe Mango fruit
Specimen; O-Ripe flamboyant flower.
(3aii)
Specimen K; Berry
Specimen L; Berry
Specimen M; Cypsela
(3aiii)
Specimen K; Axile
Specimen N; Axile
(3aiv)
Specimen L; Dispersal by Animal
Specimen M; Dispersal by wind
(3av)
(i)Hooks
(ii)Lightweight
(iii)Sticky surface
(3avi)
Specimen K
(i)Small sized
(ii)Red coloured
Specimen
(i)Big sized
(ii) Yellow coloured
(3avii)
2024 NECO BIOLOGY PRACTICAL QUESTIONS [26TH JUNE, 2024]
2024 NECO Biology (Practical) Questions –Specimen
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Sample Questions and Answers for NECO 2024 Biology Practical
Question 1:
Examine the provided specimen A (a leaf) under the microscope and describe the observable features. Identify the type of plant from which the leaf was taken.
Answer:
- Observable Features:
- The leaf has a broad, flat surface known as the lamina.
- Visible network of veins (venation) across the leaf surface.
- Presence of stomata on the underside of the leaf.
- Epidermal cells are visible along the leaf surface.
- Guard cells surrounding each stoma.
- Plant Type:
- The leaf is from a dicotyledonous plant. This can be identified by the presence of a reticulate venation pattern and the arrangement of stomata.
Question 2:
Identify the following specimens B, C, and D (vertebrae). Describe their distinguishing features and name the part of the vertebral column where each can be found.
Answer:
- Specimen B: Cervical Vertebra
- Distinguishing Features:
- Small size.
- Presence of transverse foramina (holes) on each side.
- A relatively large vertebral foramen.
- Location:
- Found in the neck region (cervical spine).
- Distinguishing Features:
- Specimen C: Thoracic Vertebra
- Distinguishing Features:
- Larger than cervical vertebrae.
- Long, downward-sloping spinous process.
- Presence of facets for rib articulation.
- Location:
- Found in the chest region (thoracic spine).
- Distinguishing Features:
- Specimen D: Lumbar Vertebra
- Distinguishing Features:
- Largest and strongest vertebrae.
- Short, thick spinous process.
- Large, kidney-shaped body.
- Location:
- Found in the lower back region (lumbar spine).
- Distinguishing Features:
Question 3:
Conduct a food test on the provided specimen E (a piece of bread) to determine the presence of starch, reducing sugars, and proteins. Record your observations and conclusions.
Answer:
- Test for Starch:
- Procedure: Add a few drops of iodine solution to a small piece of bread.
- Observation: The bread turns blue-black.
- Conclusion: Starch is present in the bread.
- Test for Reducing Sugars:
- Procedure: Crush a piece of bread in water, add Benedict’s solution, and heat the mixture in a water bath.
- Observation: The solution turns from blue to brick-red.
- Conclusion: Reducing sugars are present in the bread.
- Test for Proteins:
- Procedure: Grind the bread with water, add Biuret reagent, and observe any color change.
- Observation: The solution turns purple.
- Conclusion: Proteins are present in the bread.
Question 4:
Draw and label a well-detailed diagram of the provided specimen F (a dissected frog’s heart). Indicate the major parts.
Answer:
- Diagram: (A detailed drawing of a frog’s heart should be provided here with labeled parts.)
- Labels:
- Right atrium
- Left atrium
- Ventricle
- Conus arteriosus
- Sinus venosus
NOTE: These sample questions and answers should give an idea of the type of practical tasks and theoretical knowledge required for the NECO Biology Practical exam.
Conclusion:
In conclusion, thorough preparation for the NECO 2024 Biology Practical exam is important to achieving success. By familiarizing yourself with the types of specimens and practical tasks that may be encountered, you can enhance your observational and analytical skills. Utilizing detailed questions and answers, such as those provided, will help you understand the material better and build the confidence needed to excel in the exam. Make sure to practice regularly, review key concepts, and approach the practical exam with a keen eye and steady hand. Best of luck in your preparations and in achieving your academic goals!