Biology Post Utme questions

1. The muscle cell fluid of an athlete was tested immediately after a 100m race and was found to
contain a high concentration of lactic acid .Explain what could have caused this. The
(A) athlete must have eaten food containing a lactic acid
(B) athlete must have injected lactic acid into his blood just before the race
(C) athlete must have carried out anaerobic respiration during the race
(D) athlete must have inhaled lactic acid from the environment during the race.
2. One of this is not a continuous variation
(A) height
(B) weight
(C) tongue rolling
(D) skin colour
3. One of the following is usually worm-like, cylindrical or flattened
(A) molluscs
(B) insects
(C) nematods
(D) annelids
4. The roots hairs are
(A) strength and support  
(B) conducting liquid  
(C) absorption of water and salt
(D) penetration into the soil
5. The random way genes recombine during meiosis and fertilization leads to
(A) genetic variation
(B) phenotype
(C) genome
(D) genotype
6. In a cell, the genes are carried by
(A) Nuclear membrane
(B) Chromatin threads
(C) lysosomes
(D) Mitochondria
7. An ecosystem is composed of all of the following except:
(A) Plants
(B) Animals
(C) Temperature
(D) Meadows
8. In a food web, tertiary consumers belong to which trophic level
(A) First
(B) Second
(C) Third
(D) Fourth
9. The primary structure responsible for pumping blood for circulation through the mammalian
circulatory systems is the
(A) Veins
(B) Right auricle
(C) Arteries
(D) Left ventricle


10. The cocoon into which an earthworm lays its egg is produced in the
(A) prostomium
(B) peristomium
(C) chaeta
(D) clitellum
11. Daughters receives their X-chromosome from their ___
(A) father
(B) mother
(C) relative
(D) siblings
12. In bony fishes, the swim bladder is used for
(A) adjusting the weight of the fish when swimming at different levels.
(B) extracting oxygen from water which enters the mouth of the fish.
(C) equalizing fluid pressures between the fish and the surrounding water.
(D) absorbing more water when the fish is about to descend to a lower level
13. The theory that new organs or characteristics develop in organisms when there is a need for them
was postulated by  
(A) Charles Darwin  
(B) Wallace  
(C) Lean Lamarck
(D) Gregor Mendel
14. Ribosomes are found in all living cells. What is their function?
(A) cellular respiration
(B) synthesis of proteins
(C) excretion of waste products
(D) intracellular transport
15. Which of the following is NOT a function of the nucleus of a cell?
(A) It controls the life processes of the cell
(B) It translates genetic information for the manufacture of proteins
(C) It stores and carries hereditary information
(D) It is a reservoir of energy for the cell
16. Plants that are adapted to grow in dry land where water content is low are  
(A) Halophytes
(B) Hydrophytes  
(C) Xerophytes
(D) Mesophytes
17. What happens to a man whose pancreas has been surgically removed?
(A) the level of blood sugar would increase
(B) the glycogen content of the liver would increase
(C) his blood pressure would decrease
(D) his weight would increase appreciably
18. The hereditary factor of the material for inheritance is
(A) organ
(B) sex
(C) gene
(D) ovum
19. The random way genes recombine during meiosis and fertilization leads to
(A) genetic variation
(B) phenotype
(C) genome
(D) genotype
20. One of the following is not an excretory structure
(A) stomata
(B) blood
(C) kidney
(D) flame cell
21. In a food web, tertiary consumers belong to which trophic level
(A) First
(B) Second
(C) Third
(D) Fourth
22. Which of the following factors is not associated with aquatic habitat
(A) Temperature
(B) Light intensity  
(C) Humidity
(D) wave action
23. One of the following are usually worm-like, cylindrical or flattened
(A) molluscs
(B) insects
(C) nematods
(D) annelids
24. Which of the following constitutes the main internal tissue of leaf?  
(A) Cuticle
(B) Mesophyll  
(C) Vascular bundle  
(D) Lower epidermis
25. In insects, the structure that performs the same function as the kidney in man is the
(A) Nephridium
(B) Flame cell
(C) Malphigian tubule
(D) Trachea
26. Principles of heredity can be applied in one of these
(A) medicine
(B) chemistry
(C) law
(D) biology
27. One of this is not a shape of fingerprints
(A) circles
(B) loop
(C) whorls
(D) arches
28. What is the term used to describe the sum total of biotic and abiotic factors in the environment of
the organism?
(A) habitat
(B) biome
(C) ecosystem
(D) ecological niche
29. S phase in growth curve is known as?
(A) rapid phase
(B) shot phase
(C) long phase
(D) end Phase


30. Carbohydrates are stored in animal cells as
(A) glycogen  
(B) glucose
(C) maltase
(D) starch
31. The rhesus factor of blood was first identified in a category of
(A) Monkeys
(B) Human females
(C) Human males
(D) Chimpanzees
32. The division of nucleus is known as
(A) karyokinesis
(B) cytokinesis
(C) isogamy
(D) isopomy
33. In the mammal, the autonomic system consists of
(A) sympathetic and parasympathetic systems
(B) brain and spinal nerves
(C) brain and cranial nerves
(D) spinal cord and spinal nerves
34. The reproduction of cell is controlled by which of the following:
(A) RNA
(B) DNA
(C) mRNA
(D) Mitosis
35. The order of food passage in the digestive system is
(A) Ileum-Cecum-Colon-Rectum
(B) Ileum-Colon-Cecum-Rectum
(C) Colon-Ileum-Cecum-Rectum
(D) Colon-Cecum-Ileum-Rectum
36. In plants, the structures that play roles similar to the arteries and veins of animals are the
(A) Xylem and Phloem
(B) Root hairs and xylem
(C) Lenticels and phloem
(D) roots and stems
37. Two  plants  with  red flowers  were  back crossed, which  of the  following  results  indicates that
the plants are heterozygous red flower, where red flowers are  dominants?
(A) 75%red and 25% white
(B) 50% red and 50% white
(C) 100% white
(D) 100% red
38. Genetically modified food products have not become universally accepted because
(A) they are not tasty as others produced by conventional means
(B) they are usually costlier than others produced by conventional means
(C) their effect on human consumers is not yet fully understood
(D) the technology can be applied only in developed countries
39. Which of these animals is not metamerically segmented
(A) tapeworm
(B) earthworm
(C) centipede
(D) shark
40. The sterile individuals in the honey bee are known as
(A) Drone
(B) Queens
(C) Workers  
(D) None of these
41. Which of the following is used mainly for balancing in fish?
(A) the caudal fin  
(B) The pectoral fin
(C) The anal fin
(D) The dorsal fin
42. Octopus is popularly known as ___ fish
(A) devil
(B) jelly
(C) cray
(D) shark
43. The sexual reproductive units produced by mature individuals of sexually reproducing species of
organism is called
(A) sperms
(B) ova
(C) zygotes
(D) gametes.
44. Which of these does not have respiratory and circulatory systems
(A) annelids
(B) nematods
(C) insects
(D) molluscs
45. Spear grass has underground structure called
(A) bulbs
(B) corm  
(C) rhizomes
(D) tap roots
46. Maize is best stored against insect attack  
(A) on raised platform
(B) in fumigated silos
(C) while still on the cob
(D) in humid metal tanks
47. Circulation of blood to all parts of the body excepts the lungs is through
(A) the pulmonary artery
(B) Systemic circulation
(C) The lymphatic system
(D) Pulmonary circulation
48. Manufactured food in the plants is transported through the
(A) xylem
(B) phloem
(C) cambium
(D) cortex
49. The genetic make- up of an organism is called
(A) genotype
(B) phenotype
(C) variation
(D) gene
50. A sudden change in a gene or genes is called
(A) fertilization
(B) variation
(C) mutation
(D) heredity





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