FORM AND FUNCTIONS - Jamb Biology Past Questions and Answers

Question 1071:

• JAMB 2017

Erythrocytes are known as ________

A. White blood cell
B. Red blood cells
C. Phagocytes
D. Leucocytes

Question 1072:

• JAMB 2017

The most efficient respiratory structure used by free living protozoan is ________

A. Body surface
B. Gills
C. Buccal cavity
D. Spiracle

Question 1073:

• JAMB 2017

Carbon (iv) oxide is added to the atmosphere when ________?

A. Plants build-up organic compounds
B. Plants absorb mineral salts
C. Sugars are completely broken down in animals
D. There is thunderstorm

Question 1074:

• JAMB 2017

Use the diagram to answer the question that follows
The part labelled 1 is the ________

A. Carpel
B. Sepal
C. Petal
D. Stamen

Question 1075:

• JAMB 2017

How does an enzyme affect the rate of a reaction?

A. It lowers the activation energy of the reaction, increasing the reaction rate.
B. It raises the activation energy of the reaction, decreasing the reaction rate.
C. It lowers the activation energy of the reaction, decreasing the reaction rate.
D. It raises the activation energy of the reaction, increasing the reaction rate.