JAMB Biology Past Questions 2010 | Free Practice Test & Answers
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Created by: juanbacan
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Type A
Type B
Type C
Type D
Which of the following characterizes a mature plant cell?
the cytoplasm fills up the entire cell space
the cell wall is made up of cellulose
it controls the life processes of the cell
it translates genetic information for the manufacture of proteins
it stores and carries hereditary information
it is reservoir of energy for the cell
gametophyte
prothallus
sporophyte
antheridium
Parental care is exhibited by
toads
snails
earthworms
birds
Which of the following groups of cells is devoid of true nuclei
algae
monera
fungi
viruses
Which of the following is true of the transverse section of a dicot system?
the epidermis is completely encircled by the cortex
the xylem is more interiorly located than the phloem
the cambium lies between the cortex and the vascular bundles
the vascular bundles are randomly scattered within the cortex
Which of the following is lacking in the diet of a person with kwashiorkor?
vitamins
proteins
carbohydrates
The mode of nutrition of sun dew and bladder wort can be described as
autotrophic
saprophytic
holozoic
chemosynthetic
When the mixture of a food substance and Benedict's solution was warmed, the solution changed from blue to black-red. This indicates the presence of
reducing sugar
fatty acid
sucrose
amino acid
The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the
veins
right auricle
arteries
left ventricle
Circulation of blood to all parts of the body except the lungs is through
the pulmonary artery
systemic circulation
the lymphatic system
pulmonary circulation
Yeast respires anaerobically to convert simple sugar to carbon (IV) oxide and
alcohol
acid
oxygen
water
The sheet of muscle that separates the thoracic and the abdominal cavities is the
diaphragm
intercostal muscle
pleural membrane
pericardium
The oily substance that lubricates the mammalian hair to keep it flexible and water repellent is secreted by the
sweet glands
sebaceous glands
fatty cells
granular layer
The outer layer of the kidney where the Bowman's capsules are found is the
cortex
pelvis
medulla
pyramid
Which of the following stimuli is likely to elicit a nastic response in an organism?
Touch
Light intensity
Chemical substances
Gravity
In the male reproductive system of a mammal, sperm is stored in the
van deferens
urethra
epididymis
seminiferous tubules
Chemosynthetic organisms are capable of manufacturing their food from simple inorganic substances through the process of
oxidation
denitrification
reduction
phosphorylation
The part of the human gut that has an acidic content is the
stomach
duodenum
ileum
colon
I. Stomata → Spirogyro
II. Alveoli → Earthworm
III. Malpighian tubule → Mammal
IV. Contractile vacuole → Protozoa
Which of the above structures is correctly matched with the organisms in which it is found?
III
II
I
IV
A food chain always begins with a
consumer
decomposer
producer
primary consumer
Mycorrhizae promote plant growth by
absorbing inorganic ions from the soil
protecting it from infection
helping it to utilize atmospheric nitrogen
serving as a growth regulator
The barrier between maternal and foetal blood is the
placenta
liver
umbilical chord
uterine wall
The blood component that has the greatest affinity for oxygen is the
lymphocytes
leucocytes
erythrocytes
thrombocytes
Which of the following organisms is mainly found in the marine habitat?
Achatina
Tilapia
Dog fish
Tortoise
The two halves of the pelvic girdle are joined together at the
public symphysis
ilium
pubis
obturator foramen
I. Adoption of appropriate nocturnal habits
II. Burrowing
III. Adjusting their internal body temperature.
IV. Possession of many sweat pores.
Which of the above are ways in which desert animals adapt to extreme heat of the environment?
I and IV only
II and III only
I and II only
I, II and III only
Low annual rainfall, sparse vegetation, high diurnal temperatures and cold nights are characteristic features of the
tropical rainforest
desert
montane forest
guinea savanna
The activity of an organism which affects the survival of another organism in the same habitat constitutes
an edaphic factor
an abiotic factor
a biotic factor
a physiographic factor
The average number of individuals of a species per unit area of the habitat is the
population density
population frequency
population size
population distribution
The vector for yellow fever is
Aedes mosquito
Anopheles mosquito
tsetse fly
blackfly
The loss of soil through erosion can be reduced by
watering
crop rotation
manuring
irrigation
The protozoan plasmodium falciparum is transmitted by
female Anopheles mosquitoes
female Aedes mosquitoes
female Culex mosquitoes
Female blackfly
A dilute solution of phenylthiocarbamide tastes bitter to some people and is tasteless to others. This is an example of
taste bud variation
discontinuous variation
morphological variation
continuous variation
Thyroxine and adrenalin are examples of hormones which control
blood grouping
tongue rolling
behavioural patterns
colour variation
A pair of genes that control a trait is referred to as
an allele
recessive
dominant
a hybrid
The chromosome number of a cell before and after the process of meiosis is conventionally represented as
2n → 2n
n → n
n → 2n
2n → n
If both parents are heterozygous for a trait, the probability that an offspring will be recessive for that trait is
3/4
1/2
1/4
1
At what stage in the life history of a mammal is the sex of an individual set?
at adolescence
at puberty
at birth
at conception
The main distinguishing features between the soldier termite and other members of the caste are the
presence of wings, possession of a small head and large thorax
presence of wings, possession of a large thorax and a small head
absence of wings, possession of strong mandibles and a large head
absence of wings, possession of big head and the absence of mandible
The flippers of a whale and the fins of a fish are examples of
divergent evolution
coevolution
continuous variation
convergent evolution
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