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FOR 2019 JAMB QUESTIONS AND ANSWERS CLICK HERE or WHATSAPP: 07068492504
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FOR 2019 JAMB QUESTIONS AND ANSWERS CLICK HERE or WHATSAPP: 07068492504
JAMB EXPO WILL BE SEND 5HRS B4 THE EXAM, 250+ ABOVE ASSURED
1 A tissue is composed of a group of
A similar cells B tissues C systems D related organs
2 The population of different organisms that exist together in a habitat is called A biomes B biosphere C community D ecology
3 Which of the following serves as the brain box in man A skeleton B skull C head D spinal column
4 Which organ removes the largest amount of excess water from the body? A Liver B Lung C Kidney D skin
5 The following parts are involved in breathing process, except A mouth B nostrils C ribs D diaphragm
6 Which of these is not a sampling method for determining population size? A capture and re-capture method B complete census C Transect method D systematic sampling
7 A group of organisms of the same kind inhabiting the same environment is called A ecosystem B habitat C population D species …….…… A Choroid B Sclerotic layer C retina D cones
9 The earliest form of life in animal kingdom is the
A class B amphibian C aves pisces D reptilia
10 Which of the following disease is not sexually transmitted? A Gonorrhea B Herpes C Influenza D Syphilis
13 One of the following diseases is caused by fungi
A cassava mosaic B coffee leaf rust C leaf blight of cassava rossette D disease of groundnut
14 The by-product of photosynthesis is
A CO2 B O2 C C6H12O6 D H2O
15 Gaseous exchange in the lungs takes place in the
A alveoli B bronchi C bronchioles D trachea
16 In eukaryotic cells,cellular respiration takes place in the A nucleus B cytoplasm
C centrioles D mitochondrion
17 One of the following causes Ebola fever
A Bacteria B Fungi C Protozoa D Viruses
18 The theory of survival of the fittest was propounded by ….. A Darwin B Hooke C Lamarck
D Linnaeus
19 The deficiency of vitamin D leads to
A beriberi B pellagra C ricket D scurvy
20 One of these is used for excretion in earthworm
A Contractile vacuole B Flame cell C Malpighian tubule D Nephridium
21 The following group of plants is the most advanced except A bryophyte B pteridophyta C spermatophyte D thallophytic
22 Which of the following hormonal glands is located on top of the kidney? A Adrenal
B gonads C pancreas D thyroid
23 One of these is present in both plant and animal cell? A Cell membrane B Cell wall C Chloroplast D Large cell vacuole
24 When the solute concentration of the cell and its surrounding medium are the same, the solution is said to be A hypertonic
B hypotonic C isotonic D acidic
25 The primary consumer in the food chain below is …………….
Green plants ? Grasshopper ? Lizard ? Snake ? Hawk A Grass hopper B green plants C hawk D lizard
26 Angiosperms belong to the class
A bryophyte B pteredophyta C spermatophyte D thallophytic
27 In the kidney, both useful substances and wastes are removed from the blood by A Filtration B selective absorption C dialysis machine D excretion
28 Which of the following is not part of the mammalian male reproductive organ? A Epididymis B Vas deferens C testis D Vulva
29 Which of the following reagent is used for testing the presence of protein in food? A Benedict solution B Fetiling’s Solution C Millon’s reagent D Sudan III
30 The breaking down of food in the alimentary canal is called A digestion B egestion C excretion D ingestion
31 The followings are the functions of the kidneys, except A Regulation of water content in the blood B Maintenance of blood PH and homeostasis C Excretion of CO2
D D. Removal of waste products from the blood
32 The following distrupts the balance in an ecosystem except A afforestation B deforestation C migration D pollution
33 The following animals are viviparous expect
A Cow B Dog C Goat D Pigeon
34 The following animals is an invertebrate except
A flat worms B round worms C chordate D protozoan
35 The following are kidney diseases except
A diuresis B hepatitis C nephritis D oedema
36 The gland that releases hormones into the blood are part of the A digestive system B endocrine system C circulatory system D respiratory system
37 One of the following is called emergency hormone in man. A Adrenalin B Prolactin C Testosterone
D Thyroxine
38 Which of these responses is not voluntarily controlled by the brain? A Dancing B Eating C Sneezing D Writing
39 The scientific study of life is
A Botany B Biology C Zoology D Ecology
40 The artery supplying the liver with blood is called A hepatic B mesenteric C renal D subclavian
41 One of the following exist as colony
A euglena B paramecium C spirogyra D volvox
42 The translucency spot in food test shows the presence of A fats B starch C water D protein
43 The following are examples of oviparous animals except A crocodile B dove
C rat D tilapia
44 The part of cell that is responsible for the production of energy is A cell membrane B cytoplasm C mitochondrion D nucleus
45 Hormones that help regulate blood calcium levels are produced by the A Adrenal B thyroid
C pancreas D parathyroid
46 Which of the following statements is not true of a fish? A respires with the use of gills B covered with scales C they are homeothermic D they are poikilothermic
47 Which of the following is NOT a waste product of plants? A Auxins
B Gum C Resins D tanins
48 An association between bacteria and root nodules of legume is called A Commercialism B mutualism C parasitism D saprophytism
49 Which of these is not detected by the nerve endings of the skin? A cold
B pain C pressure D weakness
50 Behaviour conditioning was described by
A Felix Dujartin B Gregormendel C Ivan pavlov D Mathias schnelden
51 The process by which organisms keep their internal condition relatively stable is called A metabolism B evolution C gametogenesis D homeostasis
52 The following exist as free-living organisms except A Amoeba B Chlamydomonas C Euglena D Spirogyra
53 The basic functional unit of the kidney is the
A nephron B bowman’s capsule C glomerulus D loop of henle
54 Snails belong to the phylum
A Annelida B Mollusca C Echinodermata D nematode
55 Which of the following is not a pest of crops?
A Bird B Rodent C Bed bug D Grasshopper
56 Another name for a fertilized egg is a
A placenta B zygote C foetus D ovum
57 Plants that survive in marine habitats are called
A halophytes B hydrophytes C mesophytes D xerophytes
58 The study of plants is called
A Zoology B Entomology C Parasitology D Botany
59 The following are examples of air borne diseases, except A Chicken pox B Cholera C common cold D Whooping cough
60 Which of the following is the end product of the digestion of oil A glucose B Glycerol C amino acid D glycogen
61 The part that supplies food from the mother to the foetus is A Amnion B Chorion C Umbilical Cord D Placenta
62 Which of these is not the part of the eye?
A Cochlea B Conjunctiva C Cornea
D Iris
63 De-oxygenated blood is transported to the lungs through the A renal vein B hepatic portal vein C pulmonary artery D pulmonary vein
64 One of the following is the unit of life
A cell B tissues
C organ D system
65 The following are examples of a true fruit, except A mango B oil palm C orange D pineapple
66 The vector that transmit trypanosome is the
A butterfly
B housefly C mosquito D tsetse fly
67 The following are ductless glands except
A adrenal B pancreatic C parathyroid D salivary
68 White blood cells are also known as
A erythrocytes B leucocytes
C lymphocytes D phagocytes
69 The removal of remnant particles of digestion from the body is called A assimilation B egestion C elimination D excretion
70 Enzyme ptyalin acts on starch in the
A oesophagus B large intestine C mouth D stomach
Answers: JAMB Past Questions: JAMB » Biology
1. A
2. C Option A is wrong. This is because, a biome is a regional or global land area that is characterized by the plants, animals and climate in that area Option B is wrong. This is because, biosphere is the part of the earth that supports life. Option C is correct. This is because, community consists of different organisms living together in a
habitat. Option D is wrong. This is because ecology is the study of organisms and their environment.
3. B
4. C Lungs: Remove carbon dioxide Skin: Sweat glands remove water, salts, and other wastes Large intestine: Removes solid waste and some water in the form of feces Kidneys: Remove urea, salts, and excess water from the blood
5. A The act of breathing has two stages – inhalation and exhalation
– Inhalation – the intake of air into the lungs through expansion of chest volume.
– Exhalation – the expulsion of air from the lungs through contraction of chest volume.
Inhalation and exhalation involves muscles:
– Rib muscles = the muscles between the ribs in the chest. – Diaphragm muscle
6. D
7. D
8. D Cone cells, or cones, are one of two types of photoreceptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light. Cone cells are densely packed in the fovea centralis, a 0.3 mm diameter rodfree area with very thin, densely packed cones which quickly reduce in number towards the periphery of the retina. There are about six to seven million cones in a human eye and are most concentrated towards the macula
9. C
10. C
11. A
12. D Option D is correct. This is because, species is the lowest unit in the hierarchy of classifying living organisms.See the illustration below.
From kingdom phylum ? class ? order ? family ? genus ? species
13. B
14. B
15. A
16. D
17. D
18. A
19. C
20. D
21. D
22. A
23. A
24. C Option C is correct. This is because, any time there is the same solute concentration of both cell and its surrounding medium, the solution is said to be isotonic. So, there will be no losing or gaining of water into the cell or the surrounding medium.
25. A
26. C
27. A
28. D
29. C
30. A
31. C Option C is correct. This is because, excretion of CO2 is done by the lungs through the nostrils.
32. A Option A is correct. This is because, the planting of trees known as afforestation will prevents wind outbreak that can affect humanity and their resources as well as preventing soil erosion.
33. D Option D is the correct answer. This is because, pigeon is an oviparous animal that lays its egg before hatching.
34. C
35. B
36. B
37. A
38. C
39. B
40. A
41. D
42. A
43. C
44. C
45. D
46. C
47. A
48. B Option B is correct.This is because, mutualism is an association existing between two organisms benefiting from each other
49. D
50. C
51. D Option D is correct. This is because Homeostasis is any self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival.
52. D Option D is the correct answer. This is because, Spirogyra exist as filament that occurs in rows or chains.
53. A Option A is correct. This is because, the part that makes kidney perform its osmoregulation function in man is the nephron i.e. the production or formation of urine is done through nephron in the kidney.
54. B
55. C Option C is correct. This is because, bed bug is not an animal pest that can affect crop plants in a farmland. It can only affect animals like homo sapiens etc.
56. B Option B is correct. This is because, when the male sperm and female egg come in contact with each other, it becomes a fertilized egg or cell. When this happen, it results to forms the zygote.
57. A Option A is correct. This is because halophytes are plants that live successfully in a marine(salt water) habitat.
58. D
59. B Option B is the correct answer. This is because, cholera is a water borne disease (disease caused by contaminated water).
60. B
61. D Option D is correct. This is because, placenta establishes an intimate connection between the embryo and the mother. This connects the placenta to
transfer food,water and oxygen from mother to the embryo or foetus
62. A Option A is the correct answer. This is because, cochlea is the structure of the mammalian hearing organ called ear.
63. C Option C is correct. This is because for deoxygenated blood (blood containing carbon (iv) oxide) in the heart to be returned back to the lungs for the removal of the CO2,pulmonary artery aids in the process.
64. A Option A is correct. This is because, cell is the basic functional and structural unit of life.
65. D Options A, B and C are not correct. This is because, they are all true fruits (i.e, the fruits that develops solely from a fertilized ovary. Option D is correct. This is because, pineapple is a false fruit (a fruit developed or formed from the
ovary and other floral parts of the plant or fruit flowers.
66. D Option D is correct. This is because, tsetse fly is the vector that transmits trypanosome that causes trypanosomiasis or sleeping sickness.
67. D Option D is correct. This is because, salivary glands are found in the mouth, which secretes a juice called saliva that contains an enzyme called ptyalin.
68. B Option B is correct. This is because, leucocytes is another name for white blood cells 69. B Option B is correct. This is because, the removal of the remnant particles of digestion called faeces is done through a process called egestion.
70. C Options A and B are not correct. Option C is correct. This is because, the mouth is the
location where enzyme ptyalin acts on starchy food. Option D is wrong. This is because, stomach is location for the action of renin and pepsin enzymes.
FOR 2019 JAMB QUESTIONS AND ANSWERS CLICK HERE or WHATSAPP: 07068492504
JAMB EXPO WILL BE SEND 5HRS B4 THE EXAM, 250+ ABOVE ASSURED
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