Post Utme Bayero University Kano Biology Past Questions and Answers

Question 1:

The mass number of an atom of an element is sum of its _____________

A. Hlectron, neutron and proton
B. Electrons and proton
C. Protons and neutrons
D. Orbital electrons
E. Valence electrons

Question 2:

How many unpaired electrons are there in an atom of an element with the following electronic configuration \(1S^2S^22P^2\)?

A. O
B. 1
C. 2
D. 4 6

Question 3:

The process in which complex substance are broken down into simpler ones is refer to as _____________

A. Metabolism
B. Tropism
C. Anabolism
D. Catabolism

Question 4:

The organ which is sensitive to light in euglena is _____________

A. Chloroplast
B. Eyespot
C. Gullet
D. Flagellum

Question 5:

The organelles present in cells that actively respiring and photosynthesizing are _____________

A. Nucleus and centrioles
B. Mitochondria and chloroplast
C. Lysosomes and ribosomes
D. Golgi apparatus and endoplasmic reticulum