Biology 2007 Waec Past Questions and Answers

Question 6 :

• WAEC 2007

Respiration is an essential life process providing the living cells with

A. Oxygen
B. Sugars
C. Energy
D. Carbon dioxide

Question 7 :

• WAEC 2007

The organelle involved in the transport of substances within a cell is

A. Golgi body
B. Endoplasmic reticulum
C. Ribosome
D. Mitochondrion

Question 8 :

• WAEC 2007

Which of the following processes takes place when a plant cell is put in a hypotonic solution?

A. Water moves into the cell and the cell bursts
B. Water leaves the cell and the cell becomes flabby
C. Water moves into the cell and the cell becomes turgid
D. The cell becomes plasmolysed

Question 9 :

• WAEC 2007

The dominant stage in the life cycle of a fern is the

A. Antheridium
B. Gametophyte
C. Prothallus
D. Sporophyte

Question 10 :

• WAEC 2007

Yeast is added to the dough during the preparation of bread because it produces

A. Ethanol
B. Heat
C. Carbon dioxide
D. Carbohydrate