Plating

Which is not a reason for metal plating?

• decorative purposes

• prevent rust and corrosion

• to make the metal stronger

In the plating efficiency test, what reagent do we use for fixing the cell colonies?

• 0.4% trypan blue

• 10% DMSO

• 10% formalin

• 1% crystal violet

In the plating efficiency test, what reagent do we use for staining cell colonies?

• 0.4% trypan blue

• 10% DMSO

• 10% formalin

• 1% crystal violet

You have seeded 50 cells per well. After 7 days, you observe 22 colonies of cells. What is the plating efficiency?

• 7%

• 22%

• 44%

• 73%

If plating efficiency is equal to 20, how many cells per well are required to produce a single, clonal, population?

• 5

• 10

• 20

• 50

A culture with plating efficiency of 10% indicates that the conditions for growing this culture shall be modified.

• True

• False

Which of the following is a common method used in metal plating?

• Electroplating

• Sublimation

• Distillation

• Fermentation

What is the primary purpose of electroplating?

• To increase electrical conductivity

• To improve aesthetic appearance

• To enhance magnetic properties

• To increase thermal resistance

In a plating experiment, which factor is crucial for determining the thickness of the plated layer?

• Temperature of the solution

• Duration of the plating process

• Color of the metal

• Shape of the substrate

Tags

NGSS.HS-PS1-5

Which metal is commonly used for plating to prevent corrosion?

• Gold

• Silver

• Zinc

• Copper