WAEC Biology questions

353 questions with answers and explanations. Tap an option to check yourself.

All topics Cell structure and organisation · 26 Cellular activities · 24 Co-ordination and control · 27 Ecology · 33 Evolution · 18 Excretion · 22 Growth · 18 Heredity and variation · 24 Nutrition · 30 Reproduction · 29 Respiration · 25 Support and movement · 22 Transport · 27 Variety of organisms · 28

Question 261· Respiration· WAEC
During inspiration in man, the diaphragm
Explanation and discussion
Question 262· Respiration· WAEC
Which of these is a product of anaerobic respiration in human muscles?
Explanation and discussion
Question 263· Respiration· WAEC
Yeast respiring anaerobically in dough makes bread rise because it produces
Explanation and discussion
Question 264· Respiration· WAEC
The gas that is used up during aerobic respiration is
Explanation and discussion
Question 265· Respiration· WAEC
The breathing organ of a fish is the
Explanation and discussion
Question 266· Respiration· WAEC
The respiratory quotient (RQ) of carbohydrates is
Explanation and discussion
Question 267· Respiration· WAEC
When yeast ferments sugar in the absence of oxygen, the products are
Explanation and discussion
Question 268· Respiration· WAEC
The energy released in respiration is stored in the cell as
Explanation and discussion
Question 269· Respiration· WAEC
The products of aerobic respiration are
Explanation and discussion
Question 270· Respiration· WAEC
Gaseous exchange in plants takes place through
Explanation and discussion
Question 271· Respiration· WAEC
Alveoli are efficient for gaseous exchange because they
Explanation and discussion
Question 272· Respiration· WAEC
During exhalation, the intercostal muscles
Explanation and discussion
Question 273· Respiration· WAEC
The tiny air sacs in the lungs where gases are exchanged are the
Explanation and discussion
Question 274· Respiration· WAEC
In insects, air enters the body through
Explanation and discussion
Question 275· Respiration· WAEC
Lime water in a flask with germinating beans turns milky. This shows that the beans give out
Explanation and discussion
Question 276· Respiration· WAEC
In man, breathing in is brought about by the
Explanation and discussion
Question 277· Support and movement· WAEC
The atlas vertebra supports the
Explanation and discussion
Question 278· Support and movement· WAEC
The muscle that bends the arm at the elbow is the
Explanation and discussion
Question 279· Support and movement· WAEC
The type of skeleton found in an earthworm is
Explanation and discussion
Question 280· Support and movement· WAEC
Which part of the skeleton protects the brain?
Explanation and discussion

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WAEC Biology questions

During inspiration in man, the diaphragm

Which of these is a product of anaerobic respiration in human muscles?

Yeast respiring anaerobically in dough makes bread rise because it produces

The gas that is used up during aerobic respiration is

The breathing organ of a fish is the

The respiratory quotient (RQ) of carbohydrates is

When yeast ferments sugar in the absence of oxygen, the products are

The energy released in respiration is stored in the cell as

The products of aerobic respiration are

Gaseous exchange in plants takes place through

Alveoli are efficient for gaseous exchange because they

During exhalation, the intercostal muscles

The tiny air sacs in the lungs where gases are exchanged are the

In insects, air enters the body through

Lime water in a flask with germinating beans turns milky. This shows that the beans give out

In man, breathing in is brought about by the

The atlas vertebra supports the

The muscle that bends the arm at the elbow is the

The type of skeleton found in an earthworm is

Which part of the skeleton protects the brain?