Question 1

Which among the following helps us in getting a three-dimensional picture of the specimen?

Accepted Answer

A)  transmission electron microscope
B)  scanning electron microscope
C)  compound microscope
D)  simple microscope B

Question 2

Which of the following is also known as X- ray photoelectron spectroscopy?

Accepted Answer

A)  auger electron spectroscopy
B)  electron impact spectroscopy
C)  electron spectroscopy for chemical analysis
D)  secondary ion mass spectroscopy C

Question 3

In TEM, the tissue is stained by floating on drops of

Accepted Answer

A)  hydrocarbons
B)  slow-molecular weight stains
C)  heavy metal soutions
D)  oil immersion C

Question 4

On what factors do the intensity of secondary electrons depend upon?

Accepted Answer

A)  shape of the irradiated object
B)  chemical composition of the irradiated object
C)  number of electrons ejected
D)  size and chemical composition of the irradiated object, number of electrons ejected and on the number of electrons reabsorbed by surrounding

Question 5

Which of the following component of TEM focuses the beam of electrons on the sample?

Accepted Answer

A)  ocular lens
B)  condenser lens
C)  stage
D)  column

Question 6

Which of the following drugs cannot be given as transdermal administration?

Accepted Answer

A)  drugs with very short half-lives
B)  drugs with narrow therapeutic indices
C)  easy removal and termination
D)  drugs against peptic ulcer

Question 7

Which of the following is a type of electron spectroscopy?

Accepted Answer

A)  mikes
B)  auger spectroscopy
C)  secondary ion mass spectroscopy
D)  ion scattering spectroscopy

Question 8

Which of the following characteristics is suitable for transdermal drug?

Accepted Answer

A)  large drug dose
B)  large molecular size
C)  drugs with narrow therapeutic indices
D)  drugs which are metabolized in the skin

Question 9

Which of the following is the abbreviation of SIMS?

Accepted Answer

A)  secondary ion mass spectroscopy
B)  spectrum ionization mass spectroscopy
C)  scattering ions mass spectroscopy
D)  spectral ionization mass spectroscopy

Question 10

Surface is usually more than----------atomic layer deep and is a region of ---------- atomic potentials.

Accepted Answer

A)  one, uniform
B)  one, non-uniform
C)  two, uniform
D)  two, non-uniform

Question 11

The secondary electrons radiated back in scanning microscope is collected by?

Accepted Answer

A)  specimen
B)  anode
C)  vacuum chamber
D)  cathode

Question 12

Image formation in electron microscope is based on

Accepted Answer

A)  column length
B)  electron number
C)  differential scattering
D)  specimen size

Question 13

The biological materials have little intrinsic capability to

Accepted Answer

A)  scatter electrons
B)  stain
C)  remain viable
D)  be captured

Question 14

Surface analysis can provide information that classic methods like microscopic cannot.

Accepted Answer

A) True 
 B)False

Question 15

Degree of scattering in transmission electron microscope is a function of

Accepted Answer

A)  wavelength of electron beam used
B)  number of atoms that lie in the electron path
C)  number and mass of atoms that lie in the electron path
D)  mass of atoms that lie in the electron path

Question 16

Which of the following methods utilizes the emission of low energy electrons in a process?

Accepted Answer

A)  auger electron spectroscopy
B)  electron impact spectroscopy
C)  electron spectroscopy for chemical analysis
D)  secondary ion mass spectroscopy

Question 17

Surface analysis cannot provide any chemical information directly.

Accepted Answer

A) True 
 B)False

Question 18

Shadow casting is a technique of visualizing

Accepted Answer

A)  isolated particles
B)  mounts
C)  shoot tips
D)  root tips

Question 19

The resolution attainable with standard TEM is less than the theoretical value.

Accepted Answer

A) True 
 B)False

Question 20

Negative Staining is used for examining

Accepted Answer

A)  virus particles
B)  protein molecules
C)  bacterial flagella
D)  virus particles, protein molecules and bacterial flagella

Exam 8: Electron Microscopy, Surface Analysis, and Transdermal Drug Delivery

Which among the following helps us in getting a three-dimensional picture of the specimen?

Which of the following is also known as X- ray photoelectron spectroscopy?

In TEM, the tissue is stained by floating on drops of

On what factors do the intensity of secondary electrons depend upon?

Which of the following component of TEM focuses the beam of electrons on the sample?

Which of the following drugs cannot be given as transdermal administration?

Which of the following is a type of electron spectroscopy?

Which of the following characteristics is suitable for transdermal drug?

Which of the following is the abbreviation of SIMS?

Surface is usually more than----------atomic layer deep and is a region of ---------- atomic potentials.

The secondary electrons radiated back in scanning microscope is collected by?

Image formation in electron microscope is based on

The biological materials have little intrinsic capability to

Surface analysis can provide information that classic methods like microscopic cannot.

Degree of scattering in transmission electron microscope is a function of

Which of the following methods utilizes the emission of low energy electrons in a process?

Surface analysis cannot provide any chemical information directly.

Shadow casting is a technique of visualizing

The resolution attainable with standard TEM is less than the theoretical value.

Negative Staining is used for examining