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DATE: 10th june, 2022
TIME: 09:30am to 01:30pm
SUBJECT: biology
EXAM TYPE: wace 2022
BY: Miss Mary
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BIOLOGY OBJ:
1-10: DCADABCADB
11-20: ABDBABDAAA
21-30: ACBABBCBCB
31-40: ABDDDBDACA
41-50: ACCADCDBBA
Completed✅✅✅
SECTION A ANSWER ONLY TWO(2)
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SECTION B ANSWER ONLY ONE(1)
(1ai)
A cell can be defined as the basic structural and functional unit of life. All living organism are made up of cells
(1aii)
(i) Robert Hooke
(ii) Felix Dujardin
(iii) Mathias Schleiden
(1bi)
(1bii)
Red blood cell
(1biii)
It does not replicate itself but rather die off
(1c)
(i) Nucleus
(ii) Cell membrane
(iii) Cytoplasm
(iv) Chloroplast
(v) Mitochondrion
(vi) Golgi body
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QUESTION 2
(2a)
[TABULATE]
(i) - ELEMENT-
Hydrogen
-MACROELEMENT-
Tick ✔️
(ii) - ELEMENT-
Copper
-MICROELEMENT-
Tick ✔️
(iii) - ELEMENT-
Magnesium
-MACROELEMENT-
Tick ✔️
(iv) - ELEMENT-
Zinc
-MICROELEMENT-
Tick ✔️
(v) - ELEMENT-
Phosphorus
-MACROELEMENT-
Tick ✔️
(vi) - ELEMENT-
Maganese
-MACROELEMENT-
Tick ✔️
(vii) - ELEMENT-
Boron
-MICROELEMENT-
Tick ✔️
(viii) - ELEMENT-
Nitrogen
-MACROELEMENT-
Tick ✔️
(ix) - ELEMENT-
Carbon
-MACROELEMENT-
Tick ✔️
(x) ELEMENT
Oxygen
-MACROELEMENT-
Tick ✔️
(2b)
[TABULATE]
-HERBIVORE-
(i) They are animals that consume only plant and their products
(ii) They have very small mouth opening and consume food from their mouth
(iii) They have broad, flat and short, teeth to grind and chew plant leaves, grains, and seeds.
-CARNIVORE-
(i) They are animals that consume the flesh of other animals
(ii) They have large mouth opening and use their teeth for tearing the flesh apart
(iii) They posses long, sharp, and curved incisors and canines to tear flesh.
(2bii)
[TABULATE]
-HUMAN-
(i) Humans are homo sapiens
(ii) Humans are omnivores
(iii) Humans have a complex nervous system
(iv) Humans walk upright on two legs
-GOAT-
(i) Goats belong to the specie of capra hircus
(ii) Goats are herbivores
(iii) Goats have a small brian
(iv) Goats walk on four legs
(2c)
Milk teeth are sets of early, temporary teeth in children or young mammals which fall out as the permanent teeth emerge.
(4ai)
Conservation law It states that the amount of the conserved quantity at a point or within a volume can only change by the amount of the quantity which flows in or out of the volume.
(4aii)
(i)Conservation of mass and energy
(ii)Conservation of linear momentum, conservation of angular momentum
(iii)Conservation of electric charge
(4bi)
(i)Lax and broken regulation systems
(ii)Highly-priced and valued animal parts, products, and pets
(4bii)
(i) Elephants
(ii) Rhinos
(iii) Tigers
(iv) Gorillas
(v) Sea turtles
(4c)
(i) Loss of biodiversity, migration of wildlife
(ii) Exological imbalance
(iii) Soil erosion
(iv) Disruption in hydrological cycle of water catchment area
(4di)
A blood transfusion is a routine medical procedure in which donated blood is provided to you through a narrow tube placed within a vein in your arm.
(4dii)
An antigen is any substance to which the immune system can respond. For example, components of the bacterial cell wall can trigger severe and immediate attacks by neutrophils.
( 5 a )
TABULATE
= EARTHWORM=
( i) Straight
( ii) Simple
( iii ) It feeds on fluid
= COCKROACH =
( i) Curve
( ii) More enveloped
( iii ) It feeds on both fluid and solid
( 5 aii)
( i) Possession of crop
( ii) Possession of gizzard
( iii )Possession of pharynx
( 5 b)
( i) Water cycle
( ii) - Plant contribute through transpiration
- Animals contribute through respiration
- Animals contribute through perspiration
( iii )
- X : Condensation
- Y : Transpiration
- Z : Evaporation
( 5 c )
TABULATE
= ORGAN =
( i) Kidney
( ii) Skin
= DISEASES =
( i) Kidney stones , diuresis and oedema
( ii) Eczema, acne, vitiligo
( 5 di )
This is a process whereby heterotrophic organisms
utilize the remains of one living tissue as a source of
nutrition
( 5 dii )
( i) Fungi
( ii) Bacteria
( 5 diii )
Temperature
( 5 div )
Carbon cycle
( 5 e )
They exhibit heterotrophic nutrition known as
carnivorous or insectivorous feeding. They have
attractive colours that attracts insects to them . Once
the insect lands in their spine , they are killed and
digested
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