Standard Unit – Microbiology Quiz 3

Twitter - Quiz Tutors
What is the standard metric unit for 1 x 10-9m?
Facebook - Quiz Tutors

Standard Unit – Microbiology Quiz 3

The key terms of Microbiology Quiz include Standard Unit, Glucose, maltose, Molecule.


What is the standard metric unit for 1 x 10-9m?

Nanometer  – correct

micrometer

millimeter

Angstrom


The hydrolysis of starch into glucose and maltose molecules is an example of;

dehydration synthesis

catabolism   – correct

cheap starch

anabolism


What is an enzyme?

a catalyst  – correct

a substrate

a lipid

none of these


How do enzymes speed up reactions?

Enzymes increase the temperature of the solution

Enzymes add protons to the system

They lower the energy of activation   – correct

Enzymes add energy to the reaction


If I am looking through a 10X ocular and 10X objective, what is the total magnification?

100X   – correct

10X

20X

1000X


What is contrast?

differences in light intensity   – correct

increase in apparent size

resolution

depth of field


What is resolution?

ability to distinguish two closely spaced points   – correct

increase in apparent size

differences in light intensity

magnification


Which of these types of microscope can increase the contrast of a specimen without staining it?

all of these  – correct

dark field

phase contrast

DIC


Which of these types of microscopes will give me the best resolution of a thick specimen?

con focal  – correct

phase contrast

epifluorescence

transmission electron


The limit of useful magnification of a microscope using white light to iluminate the specimen is about

1000X  – correct

10,000X

100x

there is no limt


Which of these is an advantage of epifluorescence microscopy?

multiple staining   – correct

resolution of thick specimens

do not need to stain specimen

very inexpensive


The principle advantage of electron microscopes over light microscopes is

Much higher useful magnification   – correct

ease of sample preparation

better resolution of thick specimens

specimens do not have to be stained


What is the standard metric unit for 1 x 10-9m?

Nanometer  – correct

micrometer

millimeter

Angstrom


The hydrolysis of starch into glucose and maltose molecules is an example of;

dehydration synthesis

catabolism   – correct

cheap starch

anabolism


What is an enzyme?

a catalyst  – correct

a substrate

a lipid

none of these


How do enzymes speed up reactions?

Enzymes increase the temperature of the solution

Enzymes add protons to the system

They lower the energy of activation   – correct

Enzymes add energy to the reaction


Homepage