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Biology Past Questions and Answers

Waec Biology Questions

Question 91:

Gaseous exchange takes place in the adult toad through the

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A Buccal cavity, bladder and lungs
B Buccal cavity, skin and lungs
C Tympanic membrane, lungs and gills
D Buccal cavity, skin and spiracle
E Gills skin and buccal cavity

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Question 92:

Breathing movement in mammals is accompanied by regular movements of the diaphragm and the

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A Intercostal muscles
B Vertebral column
C Clavicle
D Pleural cavity
E Floating ribs

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Question 93:

Which of the following are components of glomerular filtrate?

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A All the components of Blood except mineral salts
B Water and salt only
C All the components of blood except plasma protein and cells
D Plasma proteins, red and white blood cells
E Blood cells, amino acid, salts and nitrogenous wastes.

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Question 94:

The mechanism by which useful materials in the glomerular filtrate are taken back into the blood is known
as

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A Filtration
B Reabsorption
C Haemolysis
D Osmosis
E Dialysis

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Question 95:

Which of the following takes place during the process of detoxication in the liver?

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A Poisonous substances in the body are converted into harmless substances
B Fats and oils are broken into finer particles through emulsification
C Excess glucose in the blood are converted into glycogen and stored
D Worn- out red blood cells are broken down
E Enough heat is generated to sustain the activities of the liver

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