Mcbl Test 2 Questions With Complete Solutions

MCBL test 2

1. In the case of microorganisms, most of the carbohydrates available to them are ________ that are
made up of many ________ units. - correct answer ✔✔A. Polysaccharide, monosaccharide



1. Cellulose and starch are two common examples of polysaccharides that are made up of many
monosaccharide units. - correct answer ✔✔A. True



1. Cellulose and starch are polymers of glucose. - correct answer ✔✔A. True



1. The basic difference between cellulose and starch is the structural arrangement of the glucose units,
which leads to the chemical difference. - correct answer ✔✔A. True



1. The enzyme responsible for the hydrolysis of starch is called amylase. - correct answer ✔✔A. True



1. Amylase is an extracellular enzyme - correct answer ✔✔A. True



1. Amylase is secreted through the cell membrane to degrade complex substances (starch) into smaller
units (maltose), which can readily enter the cell. - correct answer ✔✔A. True



1. Amylase acts on starch to yield maltose (a disaccharide composed of two glucose molecules), which is
then further digested by cells. - correct answer ✔✔A. True



1. To inoculate a starch agar plate for the amylase test place a straight line of inoculum from a pure
bacterial culture down the center of your starch plate. - correct answer ✔✔A. True



1. To inoculate a starch agar plate for the amylase test perform the streak plate technique of inoculation.
- correct answer ✔✔A. False