Why are bacterial smear heat fixed?

to affix the cells to the slide

to make their cell walls permeable

to help them accept the stain better

What is the purpose of the mordant in the Gram stain?

to increase the affinity of the stain to the bacteria

to make Gram negative cells visible

What is another use for a mordant?

to make the cell walls more permeable to the counterstain

What determines whether a cell is Gram positive or Gram negative?

presence or absence of a nucleus

presence or absence of flagella

composition of the cell membrane

Which sequence lists the steps of the Gram stain in order?

crystal violet, iodine, alcohol-acetone, safranin

alcohol-acetone, crystal violet, safranin, iodine

crystal violet, alcohol-acetone, iodine, safranin

iodine, safranin, crystal violet, alcohol-acetone

What is the clinical significance of the Gram stain?

it helps clinicians decide which antibiotic to prescribe for a bacterial infection

It helps clinicians identify the shape and arrangement of the bacteria

It affirms to clinicians the presence of bacteria

It demonstrates to clinicians the presence of an acid fast bacterial infection

Gram Staining

Quiz

•

Biology

•

10th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-1, HS-LS4-2, MS-LS1-2

Standards-aligned

Used 593+ times

FREE Resource

Student preview

35 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of a bacteria cell wall "holds" the stain?

plasma membrane

fimbriae

peptidoglycan

pilus

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

These bacteria are

gram positive

gram negative

nonliving

viral

These bacteria are

nonliving

gram positive

gram negative

gram positive and gram negative

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

These bacteria are

gram positive and negative

gram positive

gram negative

viral

This is

gram positive

gram negative

confusing (don't choose!)

Who knows? (don't choose)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

?

coccus

bacillus

spirilla

none of these

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

?

coccus

bacillus

spirilla

none of these

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever

or continue with

Microsoft

Apple

Others

Already have an account?

Popular Resources on Wayground

15 questions

Fractions on a Number Line

Quiz

•

3rd Grade

20 questions

Equivalent Fractions

Quiz

•

3rd Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

54 questions

Analyzing Line Graphs & Tables

Quiz

•

4th Grade

$fractions$

22 questions

fractions

Quiz

•

3rd Grade

20 questions

Main Idea and Details

Quiz

•

5th Grade

20 questions

Context Clues

Quiz

•

6th Grade

15 questions

Equivalent Fractions

Quiz

•

4th Grade

Discover more resources for Biology

21 questions

Meiosis Vs Mitosis

Quiz

•

10th Grade

10 questions

Comparing Mitosis and Meiosis: Key Differences and Stages

Interactive video

•

6th - 10th Grade

20 questions

Cladogram Practice

Quiz

•

10th Grade

10 questions

Cell Structure and Function Concepts

Interactive video

•

6th - 10th Grade

20 questions

Evidence of Evolution

Quiz

•

9th - 10th Grade

16 questions

MATZKE Photosynthesis/Respiration

Quiz

•

9th - 12th Grade

40 questions

Sea Otters Quiz #2

Quiz

•

10th Grade

20 questions

Punnets and Pedigrees

Quiz

•

9th - 10th Grade