Waec Biology 2006 Past Questions and Answers

Question 31:

• WAEC 2006

Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindnessWhich of the following vitamins would correct the deficiency numbered V?

A. Vitamin K
B. Vitamin A
C. Vitamin C
D. Vitamin B

Question 32:

• WAEC 2006

Study the following list of deficiency symptoms in animals; use it to answer the questions below
I. Loss of appetite and weight; II. Delayed healing of wounds; III. Rickets; IV Sterility in animals
V Failure of blood to clot; VI. Night blindness
Which of the following combination of food substances would correct the deficiency numbered II?

A. Tomatoes, oranges and mangoes
B. Yeast, liver and rice
C. Red palm oil, carrot and egg yolk
D. Green vegetables, butter and meat

Question 33:

• WAEC 2006

Which of the following food substances would produce a translucent mark when rubbed on a white paper?

A. Potato
B. Beans
C. Mango
D. Groundnut

Question 34:

• WAEC 2006

If an enzyme works best in an acid medium, in which of the following parts of the human gut is the pH best for
enzyme activities? In the

A. Ileum, pH 9.0
B. Stomach, pH 2.0
C. Duodenum, pH 7.0
D. Mouth cavity; pH 8.0

Question 35:

• WAEC 2006

Which of the following organisms is not considered as a parasitic plant?

A. Cassytha
B. Rhizopus
C. Dodder
D. Mistletoe