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10,710 questions available
Showing 9001–9050 of 10710 questions
Instruction
JAMB Biology 1991
JAMB (UTME) Biology 1991
Q9001. Which of the following is NOT a characteristic of enzymes?
A They are specific in action
B They are affected by temperature
C They are consumed in the reaction
D They are affected by pH
JAMB (UTME) Biology 1991
Q9002. Green plants are important in the ecosystem because they are
A primary consumers
B producers
C decomposers
D secondary consumers
JAMB (UTME) Biology 1991
Q9003. An anemometer is an instrument for measuring
A relative humidity
B altitude
C wind speed
D turbidity
JAMB (UTME) Biology 1991
Q9004. Which of the following is NOT regarded as a pollutant on land or in the air?
A Noise
B Smoke
C Sulphur dioxide
D Nitrogen
JAMB (UTME) Biology 1991
Q9005. Which of the following groups of factors is completely abiotic?
A Salinity, tide, plankton, turbidity
B Temperature, pH, soil insect
C Wind, altitude, humidity, light
D Conifers, winds, pH, rainfall
JAMB (UTME) Biology 1991
Q9006. Which of the following lists of diseases, their causes and transmission is CORRECT?
A Cholera, virus, severe diarrhea, infected water
B Malaria, protozoan, high fever, contact with infected person
C Syphilis, virus, venereal disease, sexual intercourse
D Smallpox, virus, skin with blister, close contact with infected person
JAMB (UTME) Biology 1991
Q9007. Erosion can be reduced along a slope by
A ridging across slope
B ridging up slope
C ridging down slope
D crop rotation
JAMB (UTME) Biology 1991
Q9008. If a handful of soil is shaken with water and left to settle, the soil particles will settle from light to heavy particles as follows:
A humus, clay, silt, sand, stones
B humus, silt, clay, sand, stones
C humus, clay, silt, stones, sand
D humus, sand, silt, clay, stones
JAMB (UTME) Biology 1991
Q9009. Denitrifying bacteria in nature liberate gaseous nitrogen directly from
A ammonium salts
B soil nitrates
C thunderstorms
D soil nitrites
JAMB (UTME) Biology 1991
Q9010. Leaching is
A washing away of humus from the soil surface
B reduction of soil aeration by pressure
C soil erosion by means other than rainfall
D washing out of chalk and limestone from upper layers of soil by heavy rains
JAMB (UTME) Biology 1991
Q9011. The process of soil erosion is usually from
A rill → sheet → gully
B gully → rill → sheet
C sheet → gully → rill
D sheet → rill → gully
Instruction
JAMB Biology 1992
JAMB (UTME) Biology 1992
Q9012. The organelle involved in tissue respiration is the
A endoplasmic reticulum
B ribosome
C golgi body
D mitochondrion
JAMB (UTME) Biology 1992
Q9013. A tissue can best be defined as
A an aggregate of similar cells
B an aggregate of cells performing a similar function
C an aggregate of similar cells performing the same function
D a mixture of different cell types performing the same function
JAMB (UTME) Biology 1992
Q9014. Which of the following correctly summarizes the life cycle of a fern plant?
A Spore → prothallus → thallus → sporangium
B Male and female gametangia → zygospore → sporangium → spores
C Spore → thallus → spermatozoa + ovum → sporangium
D Prothallus → spermatozoid + egg cell → leafy plant → sporangium → spore
JAMB (UTME) Biology 1992
Q9015. A major difference between platyhelminthes and coelenterates is that platyhelminthes
A are multicellular
B have developed a mesoderm
C reproduce sexually
D reproduce asexually
JAMB (UTME) Biology 1992
Q9016. The essential structural difference between Hydra and tapeworm is that while Hydra
A has tentacles, tapeworm is parasitic
B is diploblastic, tapeworm is triploblastic
C has a mouth, tapeworm feeds by suckers
D has mesoderm, tapeworm has mesogloea
JAMB (UTME) Biology 1992
Q9017. The flowering period of plants in a habitat is determined by the
A duration of sunlight
B intensity and duration of rainfall
C relative humidity of the atmosphere
D temperature of the habitat
JAMB (UTME) Biology 1992
Q9018. The structure labeled X is used by the organism in the same way as man uses his
A oesophagus
B trachea
C stomach
D intestine
JAMB (UTME) Biology 1992
Q9019. The structure labelled Y is the
A food vacuole
B nucleolus
C macronucleus
D contractile vacuole
JAMB (UTME) Biology 1992
Q9020. Which of the following insects undergoes incomplete metamorphosis?
A Mosquito
B Termite
C Housefly
D Moth
JAMB (UTME) Biology 1992
Q9021. An onion is a bulb because it
A has a tuberous stem
B has a reduced stem and thick fleshy leaves
C has adventitious roots
D bears many buds at the nodes
JAMB (UTME) Biology 1992
Q9022. The flow of air and water in or out of the mesophyll layer of a leaf is controlled by the
A stomata
B lenticels
C air spaces
D guard cells
JAMB (UTME) Biology 1992
Q9023. Fungi are heterotrophic because they
A have no leaves
B lack roots
C are filamentous
D lack chlorophyll
JAMB (UTME) Biology 1992
Q9024. The major site of photosynthesis in the leaf is the
A palisade parenchyma
B mesophyll parenchyma
C upper epidermis
D lower epidermis
JAMB (UTME) Biology 1992
Q9025. 5cm³ dilute sodium hydroxide solution and 5cm³ one percent copper sulphate solution are added to a solution of food specimen. The purple colour which is observed shows the presence of
A glucose
B starch
C fat
D protein
JAMB (UTME) Biology 1992
Q9026. The blood vessel which carries blood from the alimentary canal to the liver is the
A hepatic artery
B hepatic vein
C hepatic portal vein
D mesenteric artery
JAMB (UTME) Biology 1992
Q9027. Gaseous exchange in Aves occurs in the
A tracheoles
B bronchi
C air sacs
D lungs
JAMB (UTME) Biology 1992
Q9028. In the absence of oxygen, the pyruvic acid produced during glycolysis is converted to CO₂ and
A water
B glycerol
C ethanol
D citric acid
JAMB (UTME) Biology 1992
Q9029. The excretory organ in insect is the
A kidney
B malpighian tubule
C flame cell
D nephridium
JAMB (UTME) Biology 1992
Q9030. The structure labelled 5 is the
A sweat gland
B sebaceous gland
C blood vessel
D nerve fibre
JAMB (UTME) Biology 1992
Q9031. Melanin and keratin are produced in the part labelled
A 2
B 3
C 4
D 5
JAMB (UTME) Biology 1992
Q9032. The bone of the neck which the skull rests is known as the
A odontoid process
B axis
C atlas
D occipital condyle
JAMB (UTME) Biology 1992
Q9033. Which enzymes are contained in the pancreatic juice?
A Ptyalin, lipase and pepsin
B Maltase, erepsin and trypsin
C Rennin, sucrase and lipase
D Amylase, lipase and trypsin
JAMB (UTME) Biology 1992
Q9034. The part labeled 3 is the
A cartilage
B ligament
C synovial fluid
D bone
JAMB (UTME) Biology 1992
Q9035. The function of the part labeled 1 is to
A secrete a fluid which lubricates the joint
B attach muscles to the bones at the joint
C bend the bones at the joint
D hold the joint in place
JAMB (UTME) Biology 1992
Q9036. Double fertilization in higher plants is significant because it ensures the
A formation of a fertile embryo
B formation of a fertile embryo and the endosperm
C development of the seed
D development of the fruit
JAMB (UTME) Biology 1992
Q9037. In mammalian development, the function of the yolk is to
A supply nutrients to the embryo
B act as the shock-absorber to the foetus
C supply air to the embryo
D facilitate the process of excretion in the foetus
JAMB (UTME) Biology 1992
Q9038. Hypogeal germination is characterized by the
A emergence of the plumule out of the ground
B provision of nourishment by the endosperm
C elongation of the hypocotyl
D elongation of the epicotyl
JAMB (UTME) Biology 1992
Q9039. Fruits which develop without fertilization of the ovule are
A false
B multiple
C aggregate
D parthenocarpic
JAMB (UTME) Biology 1992
Q9040. Which part of the curve represents the fastest rate of growth?
A K
B L
C M
D N
JAMB (UTME) Biology 1992
Q9041. The grand period of growth is represented by
A N
B M
C L
D K
JAMB (UTME) Biology 1992
Q9042. Neurons that receive stimuli from the body or internal organs are called
A sensory neurons
B efferent neurons
C motor neurons
D relay neurons
JAMB (UTME) Biology 1992
Q9043. Which of the following is true of a climax community?
A It persists until the environment or climate changes
B It changes drastically from one year to the next
C It is the first stage in succession
D It is made up of the tallest trees and the smallest animals
JAMB (UTME) Biology 1992
Q9044. A population is defined as a collection of similar organisms that
A behave in the same way
B interbreed freely
C are found in the same habitat
D eat the same food
JAMB (UTME) Biology 1992
Q9045. In typical predator food chain involving secondary and tertiary consumers, the organisms become progressively
A smaller and more numerous along the food chain
B equal in number and size along the food chain
C larger and fewer along the food chain
D parasitized along the food chain as consumers get bigger
JAMB (UTME) Biology 1992
Q9046. Which level of the pyramid has the least total stored energy?
A E
B F
C G
D H
JAMB (UTME) Biology 1992
Q9047. Which organism in the pyramid functions as a tertiary consumer?
A Algae
B Shark
C Tadpole
D Tilapia
JAMB (UTME) Biology 1992
Q9048. Mangrove swamp can be found
A on a sea shore with flat terrain
B where a river meets the sea
C on a mud flat near the sea
D where two rivers meet
JAMB (UTME) Biology 1992
Q9049. Soil with the finest particles is called
A silt
B clay
C sand
D gravel
JAMB (UTME) Biology 1992
Q9050. Malaria symptoms are caused by
A toxins released into the blood as a result of the destruction of blood cells
B the multiplication of the malaria sporozoites in the liver
C the invasion of the red blood cells by the trophozoites
D the development of merozoites into gametocytes