WAEC Past Questions and Answers - Page 3905

19,521.

The bearing S40°E is the same as

A.

040o

B.

050o

C.

130o

D.

140o

Correct answer is D

= 90° + 50°

= 140°

19,522.

Which of the following protozoans feeds parasitically?

A.

Paramecium

B.

Chlamydomonas

C.

Plasmodium

D.

Euglena

Correct answer is C

No explanation has been provided for this answer.

19,523.

Which of the following enzymes does not belong to proteases?

A.

Sucrase

B.

Pepsin

C.

Trypsin

D.

Erepsin

Correct answer is A

No explanation has been provided for this answer.

19,524.

If 2x : (x +1) = 3:2, what is the value of x?

A.

\(\frac{1}{2}\)

B.

1

C.

\(1\frac{1}{2}\)

D.

3

Correct answer is D

\(2x : (x + 1) = 3:2\\
\frac{2x}{x+1}=\frac{3}{2}\\
∴ 4x = 3x + 3 x =3\)

19,525.

Which of the following enzymes is not one of the main classes of enzymes?

A.

Sucrase

B.

Amylases

C.

Proteases

D.

Lipases

Correct answer is A

No explanation has been provided for this answer.