2010 WAEC Biology past questions and answers

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1
Which if the following organisms is not classified as an animal?

A Amoeba

B Paramecium

C Euglena

D Obelia



Correct Option: C


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2
An organism that operates at the cellular level of organization, carries out its physiological activities by
using its

A cell membrane

B organelles

C small size

D cytoplasm



Correct Option: B


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3
The organelle which eliminates water from the body of a protozoan is the

A plasma membrane

B contractile vacuole

C nucleus

D cell wall



Correct Option: B


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4
Which of the following cell types has the least number of mitochondria?

A Cardiac cells of the heart

B Cells of the cornified layer

C Muscle cells of the bladder

D Muscle cells of the diaphragm



Correct Option: B


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5
A typical plant cell is mainly distinguished from an animal cell by the possession of

A chloroplast and nucleus

B cell wall and cytoplasm

C chloroplast and cell wall

D cell wall and mitochondrion



Correct Option: C


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6
Which of the following characteristics do fungi share in common with animals?

A Presence of digestive tract

B Movement from one place to another

C Storage of carbohydrates as glycogen

D Movement of centrioles during cell division



Correct Option: C


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7
Which of the following processes involves diffusion?

A Opening and closing of stomatal pores

B Turgidity of herbaceous plants

C Absorption of water through the root hairs

D Absorption of digested food into the villi



Correct Option: D


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8
The mechanism of opening and closing of stomata in plants is based on

A turgidity and diffusion

B turgidity and flaccidity

C osmosis and diffusion

D diffusion and flaccidity



Correct Option: B


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9
In cellular respiration energy is made available to organisms by

A removal of a phosphate group from ADR

B breaking off a phosphate group from ATP

C adding a phosphate group to glucose

D breaking off a hydrogen ion from NADPH



Correct Option: B


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10
Excretion in Paramecium sp. is by diffusion because

A its habitat is water and moist places

B it has simple, small and few internal organs

C it has a large surface area to volume ratio.

D it has a large efficient meganucleus.



Correct Option: C


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