Prelim Exam in Biochem Lec

Which refers to the study of the chemistry of living

organisms?                                     

• Biochemistry

• Biology

• Organic Chemistry

• Physical Chemistry

Which is the basic unit of life?

            

• atoms

• cells

• elements

• substance

What do you call the average distance a molecule travels between collisions?

             

• Kinetic Molecular Theory

• Mean Free Path

• Molecular Velocity

• none of these

Which holds atom in a molecule together?                                    

         

• atomic radius 

• chemical bonds

• electronegativity

• ionization energy

What is the process of a collection of molecules spreading out from high concentration to low concentration?

                                                                 

• condensation

• dehydration

• diffusion

• effusion

Which refers to a chemical process in where a molecule of water is added to a substance?

    

• hydrolysis

• neutralization

• oxidation

• titration

Which does not belong to a group?                                    

             

• electrons

• isotopes

• neutrons

• protons

Who formulated the animal cell theory?

                                                      

• Robert Brown

• Matthias Schleiden

• Theodore Schwann

• Rudolf Virchow       

Who observed the presence of nucleus in cells?

                                  

• Robert Brown  

• Matthias Schleiden  

• Theodore Schwann  

• Rudolf Virchow   

What structure is common to all cells?

        

• chloroplast

• cell membrane

• cell wall

• mitochondria