Test Bank for Biochemistry The.pdf

Test Bank for Biochemistry: The
Molecular Basis of Life, 7th Edition,
James R. McKee Trudy McKee

, Formatted: Left
CHAPTER ONE
BIOCHEMISTRY: AN INTRODUCTION

1) The ultimate source of energy for life on earth is __________.

A) The sun
B) Geothermal heat
C) Carbohydrates
D) Fats
E) Other organisms

Ans A


2) Which of the following is not a common component of biomolecules?

A) Carbon
B) Hydrogen
C) Oxygen
D) Nitrogen
E) Chlorine

Ans E

3) Which of the following is the basic structural unit of living organisms?

A) Nucleus
B) Cell membrane
C) Tissue
D) Cell
E) Cytoskeleton

Ans D

4) Which of the following is not an organelle?

A) Mitochondria
B) Chloroplast
C) Nucleus
D) Plasma membrane
E) Golgi complex

Ans D

, 5) Which of the following is not a role played by carbohydrates in living cells?

A) Energy source
B) Structural support
C) Intercellular communication
D) Both A and B are correct
E) All are roles played by carbohydrates in living cells

Ans D

6) Metabolism is best defined as the _________.

A) Reactions of living cells
B) Reactions that synthesize large molecules in living cells
C) Reactions that degrade molecules in living cells
D) Conversion of food molecules to energy
E) Reactions that synthesize and degrade molecules in living cells

Ans E

7) The average life span of a species is about ________years

A) One million
B) Ten million
C) Five hundred thousand
D) Five million
E) One hundred thousand

Ans A


8) Which of the following is not a waste product of living organisms

A) Carbon dioxide
B) Water
C) Urea
D) Ammonia
E) Glycine

Ans E


9) Biochemistry is defined as

A) The study of life processes
B) The study of the molecular basis of life