nc

More:

WHATSAPP US"

2018 Neco Biology OBJ & Theory Questions And Answers.

VERIFIED BIOLOGY OBJ:
1-10: BBEADBEEEC
11-20: DADBDCDDDB
21-30: ADECBDADEC
31-40: DADAAAACBA
41-50: BCEABCCCDB
51-60: EABBDDCCBB

(1a)
(i) Sunlight: It is source of energy for during
photosynthesis
(ii) Chlorophyl: It traps solar energy and coverts
it to chemical energy during photosynthesis

(1b)
(i) Humerus
(ii) Radius
(iii) Ulna
(iv) Scapula
(v) The ball and socket joint

(1c)
(i) They help in gathering food for the caste
(ii) circulating and maintaining the colony’s
pheromones and food among each other via
trophallaxis,
(iii) They help in tending to the eggs and
nymphs
(iv) They help in taking care of the queen and
king
(v) They help in constructing or repairing the
nest, tunnels, galleries, feeding tunnels

(1d)
Ecosystem is a community of interaction
between organisms and their environment.

(1e)
DRAWING

==================================

(2ai)
Gene can be defined as the basic unit of
iheritance which carries hereditary factors or
materials such DNA. It is found in the
chromosone of all cells

(2aii)
Implantation refers specifically to the
attachment of the fertilized egg to the uterine
lining, which occurs approximately 6 or 7 days
after conception (fertilization).

(2aiii)
Group of living organisms consisting of similar
individuals capable of exchanging genes or
interbreeding.

(2aiv)
A saprophytes are organism which feeds on
dead decayed organic matter.

(2bi)
(i)It gives support and shape to the body
(ii) It helps in the production of white blood
cells
(iii) It aids free movements
(iv) It helps in the attachment of muscles

(2bii)
(i) Biceps
(ii) Triceps
(2biii)
(i) Lipase
(ii) Maltase
(iii) Amylase

FUNCTION:
-Lipase breaks down dietary fats into smaller
molecules called fatty acids and glycerol.
-Maltase converts maltose to glucose
-Amylase converts starch to maltose

===================================

(3a)
(i) Diabetes mellitus
(ii) Infective hepatitis
(iii) Cancer of the Liver

(3aii)
TABULATE:
Under Plant cell
(i) presence of cell wall
(ii) presence of chloroplast
(iii) Presence of sparse cytoplasm
(iv) presence of small vacuole
(v) Absence of centrosome
Under Animal cell
(i) Absence of cell wall
(ii) Absence of chloroplasts
(iii) Presence of dense cytoplasm
(iv) Presence of small vacuole
(v) Presence of Centrosome

(3b) DRAW THE DIAGRAM

(3ci)
(i) Parenchyma
(ii) Collenchyma

(3cii)
(i) A reptile has a backbone, which means they
are vertebrates.
(ii) Reptiles produce eggs. Most reptiles lay
hard-shelled eggs, but a few give birth to live
young.
(iii) Reptiles are cold-blooded

===============================

(4ai)
Diffusion is the movement of molecules or
atoms from a region in which they are in higher
concentration to a region of lower concentration
until an equilibrium is established

(4aii)
Osmosis this is a spontaneous movement of
water molecules through a semi-permeable
membrane into a region of higher solute
concentration

(4aii)
Plasmolysis is a shrinking away of cytoplasm
from the wall of a living cell due to water from
osmosis.

(4b)
(i) Competition
(ii) Epidemic
(iii) Restlesness
(iv) Death

(4bii)
(i) Prevention of bush burning
(ii) Prohibition of killing or poaching of animals
in game reserve

(4biii)
(i) Termite
(ii) Bee

(4ci)
Metamorphosis is a process by which an
animal physically develops after birth or
hatching, involving a conspicuous and relatively
abrupt change in the animal’s body structure
through cell growth and differentiation.

(4cii)
(i) Cockroaches
(ii) Termites
(4ciii)
(i) Tomatoes
(ii) Oranges

==============================

(5a)
DRAW THE DIAGRAM

(5b)
TABULATE (DRAW A TABLE)
(i) Mouth | Stationary gland (Ptyodira)
(ii) Stomach | Renin
(iii) Small Intestine | (Lipase) (Ellipsis)
(Maltese)

No Responses Yet

Leave a Reply




error: Content is protected !!