Biology Past Questions v7 For JAMB/WAEC/NECO Students; These Biology past questions are for students who are sitting for the following examinations:

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• NABTEB GCE

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#1. In which of the following groups of animals are flagella and cilia found?

A) Flatworms

A) Flatworms

B) Annelids

B) Annelids

C) Coelenterates

C) Coelenterates

D) protozoa

D) protozoa

E) Nematodes

E) Nematodes

#2. Irish potato is a

A) bulb

A) bulb

B) tap root

B) tap root

C) rhizome

C) rhizome

D) root tuber

D) root tuber

E) stem tuber

E) stem tuber

#3. Bowman's capsule is located in the part labeled

A) 1

A) 1

B) 2

B) 2

C) 3

C) 3

D) 4

D) 4

E) 5

E) 5

#4. Re-absorption of useful materials takes place in the part labelled

A) 1 and 3

A) 1 and 3

B) 3 and 5

B) 3 and 5

C) 5 and 6

C) 5 and 6

D) 6 and 7

D) 6 and 7

E) 2 and 4

E) 2 and 4

#5. The origin of mineral particles in the soil is

A) humus

A) humus

B) water

B) water

C) micro-organisms

C) micro-organisms

D) weathered rock

D) weathered rock

E) organic matter

E) organic matter

#6. Atmospheric nitrogen is directly replenished in nature through

A) the activities of denitrifying bacteria

A) the activities of denitrifying bacteria

B) the breakdown of ammonium salts in the soil

B) the breakdown of ammonium salts in the soil

C) the activities of nitrifying bacteria

C) the activities of nitrifying bacteria

D) the activities of nitrogen-fixing bacteria in root nodules

D) the activities of nitrogen-fixing bacteria in root nodules

E) egestion, death and decay

E) egestion, death and decay

#7. The initial volume of water poured into 60g bag of dry soil was 50ml and the amount that drained through was 35ml. The percentage water content of the fully soaked soil is therefore

A) 46.7

A) 46.7

B) 25.0

B) 25.0

C) 20.0

C) 20.0

D) 30.0

D) 30.0

E) 58.3

E) 58.3

#8. The primary and secondary hosts respectively of bilharzia are

A) fish and man

A) fish and man

B) man and dog

B) man and dog

C) snail and man

C) snail and man

D) man and snail

D) man and snail

E) fish and snail

E) fish and snail

#9. Which of the following is NOT caused by bacteria?

A) Cholera

A) Cholera

B) Gonorrhoea

B) Gonorrhoea

C) Tuberculosis

C) Tuberculosis

D) Onchoceriasis

D) Onchoceriasis

E) Typhoid

E) Typhoid

#10. Tsetse fly is harmful to man because it is associated with the spread of

A) river blindness

A) river blindness

B) malaria

B) malaria

C) sleeping sickness

C) sleeping sickness

D) leprosy

D) leprosy

E) dysentry

E) dysentry

#11. Soil erosion CANNOT be controlled by

A) planting cover crops

A) planting cover crops

B) contouring of sloping ground

B) contouring of sloping ground

C) terracing of slopes

C) terracing of slopes

D) laying of mulch

D) laying of mulch

E) burning of bush

E) burning of bush

#12. Water retention is highest in soils which are rich in

A) sand, poor in humus and devoid of clay

A) sand, poor in humus and devoid of clay

B) clay and sand, but poor in humus

B) clay and sand, but poor in humus

C) clay and humus, but poor in sand

C) clay and humus, but poor in sand

D) clay, poor in humus and devoid of sand

D) clay, poor in humus and devoid of sand

E) sand and humus, but poor in clay

E) sand and humus, but poor in clay

#13. The mammalian endocrine system is responsible for

A) transmitting impulse

A) transmitting impulse

B) regulating body temperature

B) regulating body temperature

C) regulating osmotic pressure of blood

C) regulating osmotic pressure of blood

D) chemical co-ordination

D) chemical co-ordination

E) the manufacture of blood

E) the manufacture of blood

#14. An old man is likely to be long-sighted because age affects the

A) optic nerves

A) optic nerves

B) retina

B) retina

C) ciliary muscles

C) ciliary muscles

D) cornea

D) cornea

E) aqueous humour

E) aqueous humour

#15. In mammals, stimulus is transferred from the receptor muscles to the central nervous system through the

A) motor neruos

A) motor neruos

B) effector muscles

B) effector muscles

C) dendrites

C) dendrites

D) sensory neurons

D) sensory neurons

E) synapses

E) synapses

#16. A relationship between living organisms which is of mutual benefit is

A) parasitism

A) parasitism

B) saprophtism

B) saprophtism

C) ecosystem

C) ecosystem

D) symbiosis

D) symbiosis

E) commensalism

E) commensalism

#17. Which of the following food chains is in the correct sequence?

A) Weeds → Tadpole → Beetles → Fish → Man

A) Weeds → Tadpole → Beetles → Fish → Man

B) Weeds → Tadpole → Fish → Beetles → Man

B) Weeds → Tadpole → Fish → Beetles → Man

C) Tadpole → Beetles →Weeds → Man → Fish

C) Tadpole → Beetles →Weeds → Man → Fish

D) Man → Fish → Beetles → Tadpole → Weeds

D) Man → Fish → Beetles → Tadpole → Weeds

E) Fish → Beetles → Weeds → Man → Tadpoles

E) Fish → Beetles → Weeds → Man → Tadpoles

#18. Irish potato is a

A) bulb

A) bulb

B) tap root

B) tap root

C) rhizome

C) rhizome

D) root tuber

D) root tuber

E) stem tuber

E) stem tuber

#19. The characters by which an organism is recognized are termed its

A) phenotype

A) phenotype

B) genotype

B) genotype

C) morphology

C) morphology

D) anatomy

D) anatomy

E) physiology

E) physiology

#20. The hereditary material in a cell is known as

A) ADP

A) ADP

B) CNS

B) CNS

C) RNA

C) RNA

D) ATP

D) ATP

E) DNA

E) DNA

#21. A young plant showing yellow leaves is likely to be deficient in

A) calcium

A) calcium

B) magnesium

B) magnesium

C) potassium

C) potassium

E) molybdenum

E) molybdenum

#22. Germination which results in the cotyledons being brought above ground is called

A) hypocotyl

A) hypocotyl

B) epicotyl

B) epicotyl

C) epigeal

C) epigeal

D) hypogeal

D) hypogeal

E) plumule

E) plumule

#23. Movements and positions of the head in man are detected by the

A) cochlea

A) cochlea

B) malleus

B) malleus

C) utriculus

C) utriculus

D) semicircular canal

D) semicircular canal

E) outer ear

E) outer ear

#24. The appendicular skeleton is made up of the

A) limbs

A) limbs

B) skull and limbs

B) skull and limbs

C) phalanges

C) phalanges

D) ulna and radius

D) ulna and radius

E) girdles and limbs

E) girdles and limbs

#25. The maize grain is a fruit and not a seed because it

A) has a large endosperm

A) has a large endosperm

B) is formed from an ovary

B) is formed from an ovary

C) is a monocotyledon

C) is a monocotyledon

D) has no plumule and radicle

D) has no plumule and radicle

E) has a hypogeal germination

E) has a hypogeal germination

#26. If a flower is protandrous then it

A) must be unisexual

A) must be unisexual

B) has an undeveloped androecium

B) has an undeveloped androecium

C) has no androecium

C) has no androecium

D) must be insect-pollinated

D) must be insect-pollinated

E) can prevent self pollination

E) can prevent self pollination

#27. For pollen to be released in Crotalaria the insect must depress the

A) wing

A) wing

B) keel

B) keel

C) standard

C) standard

D) antepetalous stamen

D) antepetalous stamen

E) antesepalous stamen

E) antesepalous stamen

#28. If a child can receive blood from all donors , he belongs to the blood group

A) O

A) O

B) A

B) A

C) B

C) B

D) AB

D) AB

E) AS

E) AS

#29. Which of the following events does NOT occur during anaerobic respiration of glucose?

A) Muscle cells produce lactic acid

A) Muscle cells produce lactic acid

B) Carbon dioxide is produced

B) Carbon dioxide is produced

C) Milk bacteria produce lactic acid

C) Milk bacteria produce lactic acid

D) Energy is not produced

D) Energy is not produced

E) Germinating seeds produced alcohol

E) Germinating seeds produced alcohol

#30. Identify which of the following are characteristics of the vertebrate respiratory surface 1. Moist 2. Vascularized 3. Semipermeable 4. Freely permeable 5. Dry

A) 1, 2, 3

A) 1, 2, 3

B) 1, 2, 5

B) 1, 2, 5

C) 2, 3, 5

C) 2, 3, 5

D) 2, 4, 5

D) 2, 4, 5

E) 1, 3, 5

E) 1, 3, 5

#31. In mammals, the function of the sebaceous gland is to

A) produce sweat

A) produce sweat

B) secrete sodium choride

B) secrete sodium choride

C) secrete water

C) secrete water

D) produce an oily substance

D) produce an oily substance

E) manufacture vitamin D for the skin

E) manufacture vitamin D for the skin

#32. Which of the following organs regulates the amount of amino acids and glucose in the body?

A) Kidney

A) Kidney

B) Liver

B) Liver

C) pancreas

C) pancreas

D) Spleen

D) Spleen

E) Stomach

E) Stomach

#33. If calcium is deficient in food this may cause

A) anaemia

A) anaemia

B) retarded growth

B) retarded growth

C) sterility

C) sterility

D) goitre

D) goitre

E) beri-beri

E) beri-beri

#34. Partially digested food ready to leave the stomach is referred to as

A) chyme

A) chyme

B) curd

B) curd

C) glycogen

C) glycogen

D) paste

D) paste

E) roughage

E) roughage

#35. The function of lymph nodes is to

B) filter out bacteria

B) filter out bacteria

B) filter out bacteria

B) filter out bacteria

C) form red blood cells

C) form red blood cells

D) supply amino acids

D) supply amino acids

E) supply simple sugars

E) supply simple sugars

#36. The vein which returns blood from the head and arms to the heart is called

A) aorta

A) aorta

B) inferior vena cava

B) inferior vena cava

C) superior vena cava

C) superior vena cava

D) pulmonary vein

D) pulmonary vein

E) pulmonary artery

E) pulmonary artery

#37. Blood platelets are important because they are

A) amoeboid and nucleated

A) amoeboid and nucleated

B) produce antitoxins

B) produce antitoxins

C) produce antibodies

C) produce antibodies

D) digest harmful bacteria

D) digest harmful bacteria

E) release thrombin for blood clothing

E) release thrombin for blood clothing

#38. In an angiosperm leaf, the xylem is

A) beside the phloem

A) beside the phloem

B) surrounded by trhe phloem

B) surrounded by trhe phloem

C) above the phloem

C) above the phloem

D) around the phloem

D) around the phloem

E) in separate bundles from the phloem

E) in separate bundles from the phloem

#39. A group of similar cells performing the same function is

A) an organ

A) an organ

B) a system

B) a system

C) a tissue

C) a tissue

D) an organelle

D) an organelle

E) an enzymes

E) an enzymes

#40. Which of the following is common to a dicotyledonous stem and monocotyledonous root?

A) Medullary rays

A) Medullary rays

B) Central pith

B) Central pith

C) Wide cortex

C) Wide cortex

D) Narrow cortex

D) Narrow cortex

E) Pericycle fibres

E) Pericycle fibres

#41. Which of the following represents the sequence of protein hydrolysis? 1. polypeptides 2. Amino acides 3. Proteins 4. Peptones

A) 3 → 1 → 2 → 4

A) 3 → 1 → 2 → 4

B) 3 → 2 →4 → 1

B) 3 → 2 →4 → 1

C) 3 → 1 →2 → 4

C) 3 → 1 →2 → 4

D) 3 → 4 → 1 → 2

D) 3 → 4 → 1 → 2

E) 3 → 1 → 4 → 2

E) 3 → 1 → 4 → 2

#42. A food substance which produces red colouration with Sudan III contain

A) protein

A) protein

B) sugar

B) sugar

C) starch

C) starch

D) cellulose

D) cellulose

E) fat

E) fat

#43. Euglene is an autotrophic organism because it

A) has flagella

A) has flagella

B) has plant and animal features

B) has plant and animal features

C) is found in water

C) is found in water

D) can manufacture its food

D) can manufacture its food

E) move fast

E) move fast

#44. which of the following is NOT true of mucor? it

A) contains chlorophll

A) contains chlorophll

B) grows saprophytically

B) grows saprophytically

C) bears spores in sporangium

C) bears spores in sporangium

D) consist of hypae

D) consist of hypae

E) reproduces by conjugation

E) reproduces by conjugation

#45. Bryophtes are different from flower because they

A) live in moist habit

A) live in moist habit

B) are small plants

B) are small plants

C) reproduce sexually and asexually

C) reproduce sexually and asexually

D) have small leaves

D) have small leaves

E) have no vascular tissue

E) have no vascular tissue

#46. At what stage in the life history of a toad is its mode of breathing similar to that of fish?

A) Tadpole stage

A) Tadpole stage

B) External gill stage

B) External gill stage

C) Adult stage

C) Adult stage

D) Internal gill stage

D) Internal gill stage

E) Larval stage

E) Larval stage

#47. In lower plants like mosses, the structure which performs the functions of roots of higher plants is called

A) root hairs

A) root hairs

B) rootlets

B) rootlets

C) hypae

C) hypae

D) rhizoids

D) rhizoids

E) thalli

E) thalli

#48. In spirogyra, the pyrenoid

A) excretes waste products

A) excretes waste products

B) is suspended by cytoplasmic strands

B) is suspended by cytoplasmic strands

C) is mainly used for respiration

C) is mainly used for respiration

D) usually contains starch

D) usually contains starch

E) makes the plants slimy to touch

E) makes the plants slimy to touch

#49. In which of the following groups of animals are flagella and cilia found?

A) Flatworms

A) Flatworms

B) Annelids

B) Annelids

C) Coelenterates

C) Coelenterates

D) protozoa

D) protozoa

E) Nematodes

E) Nematodes

#50. Which of the following is seed bearing?

A) Mosses

A) Mosses

B) Whistling pine

B) Whistling pine

C) Algal filament

C) Algal filament

D) liverwort

D) liverwort

E) Fern fronds

E) Fern fronds

Finish

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