Microbiology Fundamentals A Clinical Approach 3rd edition By Marjorie Kelly Cowan – Test Bank

Microbiology Fundamentals A Clinical Approach 3rd edition By Marjorie Kelly Cowan – Test Bank

Microbiology Fundamentals: A Clinical Approach, 3e (Cowan)
Chapter 6 Microbial Nutrition and Growth

1) Microorganisms require large quantities of ________ for use in cell structure and metabolism.
A) elements
B) macronutrients
C) water
D) growth factors
E) trace elements

2) Microorganisms require small quantities of ________ for enzyme function and maintenance of protein structure.
A) carbon
B) macronutrients
C) water
D) growth factors
E) trace elements

3) What compound is the most abundant in a cell?
A) CO2
B) CH4
C) H2O
D) Glucose
E) NH3

4) Most of the dry weight of a microbial cell is from ________.
A) inorganic compounds
B) minerals
C) water
D) organic compounds
E) salts

5) Which of the following is not a major element of a microbial cell?
A) Copper
B) Carbon
C) Hydrogen
D) Nitrogen
E) Oxygen
6) An important mineral ion of the cytochrome pigments of cellular respiration is ________.
A) iron
B) zinc
C) calcium
D) magnesium
E) potassium

7) An important mineral ion that is a component of chloroplasts and stabilizer of membranes and ribosomes is ________.
A) iron
B) zinc
C) calcium
D) magnesium
E) potassium

8) The term autotroph refers to an organism that ________.
A) uses CO2 for its carbon source
B) must obtain organic compounds for its carbon needs
C) gets energy from sunlight
D) gets energy by oxidizing chemical compounds
E) does not need a carbon source

9) The term photoheterotroph refers to an organism that ________.
A) uses CO2 for its carbon source
B) utilizes inorganic compounds for its carbon needs
C) gets energy from sunlight
D) gets energy by metabolizing organic matter of dead organisms
E) does not need a carbon source

10) Calcium is required for bacteria because it ________.
A) stabilizes the cell wall
B) stabilizes the ribosomes
C) stabilizes the nucleoid
D) maintains cellular pH
E) makes strong bones