Course Title
Module #7 Student Activity Sheet
LESSON TITLE: MICROBIAL DIVERSITY: EUKARYOTIC MICROBES
A. LESSON PREVIEW/REVIEW (5 minutes)
Instruction: Differentiate gram-negative and gram-positive bacteria. (Refer to session 7 for
answers.)
Gram-positive bacteria if the bacteria were not decolorized during the decolorization step, they
will be blue to purple at the conclusion of the Gram staining while Gram-negative bacteria is the
crystal violet was removed from the cells during the decolorization step, and the cells were
subsequently stained by the safranin (a red dye), they will be pink to red at the conclusion of the
Gram staining procedure.
CHECK FOR UNDERSTANDING (30 minutes)
You will answer and rationalize this by yourself. This will be recorded as your quiz. One (1) point
will be given to correct answer and another one (1) point for the correct ratio. Superimpositions
or erasures in you answer/ratio is not allowed.
You are given 30 minutes for this activity:
1. Which of the following statements about algae and fungi is (are) true?
a. Algae are photosynthetic, whereas fungi are not.
b. Algal cell walls contain cellulose, whereas fungal cell walls do not.
c. Fungal cell walls contain chitin, whereas algal cell walls do not.
d. all of the above
Answer: D
Rationale: All statements are correct that algae are photosynthetic, whereas fungi are not, algal cell walls contain
cellulose, whereas fungal cell walls do not, and fungal cell walls contain chitin, whereas algal cell walls do not.
2. All of the following are algae except:
a. desmids.
b. diatoms.
c. dinoflagellates.
d. sporozoa.
Answer: D
Rationale: Nonmotile protozoa—protozoa lacking pseudopodia, flagella, or cilia—are classified together in a category
called sporozoa
3. All of the following are fungi except:
a. moulds.
b. Paramecium.
c. Penicillium.
d. yeasts
Answer: B
Rationale: Paramecium is a unicellular organism member of the algae family.
Module #7 Student Activity Sheet
LESSON TITLE: MICROBIAL DIVERSITY: EUKARYOTIC MICROBES
A. LESSON PREVIEW/REVIEW (5 minutes)
Instruction: Differentiate gram-negative and gram-positive bacteria. (Refer to session 7 for
answers.)
Gram-positive bacteria if the bacteria were not decolorized during the decolorization step, they
will be blue to purple at the conclusion of the Gram staining while Gram-negative bacteria is the
crystal violet was removed from the cells during the decolorization step, and the cells were
subsequently stained by the safranin (a red dye), they will be pink to red at the conclusion of the
Gram staining procedure.
CHECK FOR UNDERSTANDING (30 minutes)
You will answer and rationalize this by yourself. This will be recorded as your quiz. One (1) point
will be given to correct answer and another one (1) point for the correct ratio. Superimpositions
or erasures in you answer/ratio is not allowed.
You are given 30 minutes for this activity:
1. Which of the following statements about algae and fungi is (are) true?
a. Algae are photosynthetic, whereas fungi are not.
b. Algal cell walls contain cellulose, whereas fungal cell walls do not.
c. Fungal cell walls contain chitin, whereas algal cell walls do not.
d. all of the above
Answer: D
Rationale: All statements are correct that algae are photosynthetic, whereas fungi are not, algal cell walls contain
cellulose, whereas fungal cell walls do not, and fungal cell walls contain chitin, whereas algal cell walls do not.
2. All of the following are algae except:
a. desmids.
b. diatoms.
c. dinoflagellates.
d. sporozoa.
Answer: D
Rationale: Nonmotile protozoa—protozoa lacking pseudopodia, flagella, or cilia—are classified together in a category
called sporozoa
3. All of the following are fungi except:
a. moulds.
b. Paramecium.
c. Penicillium.
d. yeasts
Answer: B
Rationale: Paramecium is a unicellular organism member of the algae family.
