Protists and Fungi Microbial Nutrition I

Question 1

What are three structures unique to the protozoan cell?

Answer 1

1. Flagellum
2. Pellicle
3. Water vacuole

Question 2

What are three structures unique to fungal cells?

Answer 2

1. Nucleolus
2. Cell wall
3. Storage vacuole

Question 3

What are three examples of protists?

Answer 3

1. Algae
2. Protozoa
3. Slime molds

Question 4

What are two examples of fungi?

Answer 4

1. Yeast

2. Molds

Question 5

(T/F) Protists are a cohesive taxon

Answer 5

False, they are NOT a cohesive taxon

Question 6

Protists do not have a cell wall but they can make one in what kind of form?

Answer 6

cyst form

Question 7

(T/F) Fungi are originally derived form the same lineage

Answer 7

True

Question 8

Fungi can create an abundance of ___ and are good at (sexual/asexual) reproduction

Answer 8

Spores

Asexual (sexual is too costly)

Question 9

What is sexual reproduction synonymous with?

Answer 9

Diversity

Question 10

Trace elements play an important role in certain kinds of what?

Answer 10

Enzymes and cofactors

Question 11

What is considered the backbone of all organic cellular components?

Answer 11

Carbon

Question 12

What are the differences between the CARBON source autotrophs and heterotrophs?

Answer 12

Autotrophs = CO2 is sole carbon source
Heterotrophs = carbon source from reduced organic compounds

Question 13

The more reduced a compound is, the (higher/lower) the energy content

Answer 13

Higher

More reduced = more electrons

Question 14

What are the differences between the ENERGY source phototrophs and chemotrophs?

Answer 14

Phototrophs = light for energy
Chemotrophs = oxidation of chemical compounds for energy

Question 15

What are the differences between the ELECTRON source lithotrophs and organotrophs

Answer 15

Lithotrophs = use reduced inorganic substances 
Organotrophs = organic compounds

Question 16

Photolithoautotroph

• carbon source
• energy source
• electron source

Answer 16

• CO2
• Light
• Inorganic

Question 17

Photoorganoheterotroph

• carbon source
• energy source
• electron source

Answer 17

• Organic carbon
• Light
• Organic donor

Question 18

What are the four GROWTH factors used by microbes and what does each help synthesize?

Answer 18

1. Amino acids (protein)
2. Purines and pyrimidines (nucleic acid)
3. Vitamins (enzyme)
4. Fatty acids (membrane)