2024 NECO BIOLOGY: Biology (Bio prac) NABTEB Authentic Questions and Answers 2025 (9412)

*NABTEB BIOLOGY PRACTICAL SOLUTIONS*

(1i)

(a) Plasmolysis

(b) Osmosis

(1ii)

(a) pH indicator or pH meter

(b) Alkaline substance

(1iii)

(Pick two only)

(i) Sodium hydroxide (NaOH)

(ii) Copper (II) sulfate solution

(iii) Millon's reagent

(1iv)

(i) Pisces (Class Osteichthyes, Class Chondrichthyes)

(ii) Class Reptilia

(1v) Mitochondria

(1vi)

(a) Cactus

(b) Hepatic vein

(1vii)

(Pick two only)

(i) Osmoregulation

(ii) Blood pressure regulation

(iii) Excretion

(iv) Filtration

(1viii)

(Pick two only)

(i) Tuberculosis

(ii) Tetanus

(iii) Typhoid

(iv) Anthrax

(1ix)

(Pick two only)

(i) Cactus 

(ii) Acacia 

(iii) Oleander

(iv) Baobab tree

(1x) X and Y chromosomes

(1xi) Homeostasis

(1xii)

(Pick two only)

(i) Burrying it in pits

(ii) Disposing using bucket latrines

(iii) By using septic tanks to collect and dispose it

(1xiii)

(Pick two only)

(i) It enables plants to absorb water and mineral salts from the soil.

(ii) It helps to remove excess water from the plants.

(iii) It 'copied from e x a m p l a z a . c o m free' facilitates the movement of soil water.

(iv) The evaporation of water due to transpiration from the plants cools the plants.

(1xiv) To allow for gaseous exchange

(1xv)

(Pick four only)

(i) Salting 

(ii) Smoking 

(iii) Refrigeration 

(iv) Sun-drying 

(v) Canning

(vi) Pasteurization

(2ai)

Specimen A - Coconut fruit

Specimen B - Orange fruit.

(2aii) 

Specimen A - Drupe.

Specimen B - Berry.

(2b)

(TABULAR FORM)

-SPECIMEN A-

(Pick two only)

(i) Mesocarp is fibrous

(ii) Mesocarp is not edible

(iii) Epicarp is hard

-SPECIMEN B-

(Pick two only)

(i) Mesocarp is succulent

(ii) Mesocarp is edible

(iii) Epicarp is soft

(2ci)

(DIAGRAM)

(4ai) 

Specimen E - Water leaf stem.

(4aii) 

Class Dicotyledoneae

(4bi)

(4bii) 

Phloen tissue

(4biii)

(a) It is responsible for the increase in size of the trunk of many trees.

(b) It is responsible for the conduction of water and dissolved mineral salts from the soil to the leaves through the roots and stems.

(4c)

(TABULAR FORM)

-Dicotyledonous Stem-

(Pick two only)

(i) Presence of pith

(ii) Secondary thickening occurs

(iii) Collenchyma is below epidermis

(iv) Cortex is wide

(v) Cambium is present

-Monocotyledonous Stem-

(Pick two only)

(i) Absence of pith

(ii) Secondary thickening does not occur

(iii) Sclerenchyma is below epidermis

(iv) Cortex is narrow

(v) Cambium is absent