Microbial Nutrition
Biology ⇒ Microorganisms and Microbiology
Microbial Nutrition starts at 9 and continues till grade 12.
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See sample questions for grade 9
Describe how parasitic microorganisms obtain their nutrition.
Describe the difference between obligate anaerobes and facultative anaerobes.
Describe the nutritional relationship between a host and a parasitic microorganism.
Describe the nutritional role of Rhizobium bacteria in plants.
Describe the role of decomposer microorganisms in the ecosystem.
Explain the difference between autotrophic and heterotrophic nutrition in microorganisms.
A culture medium contains only inorganic salts and glucose. Which type of microorganism would be unable to grow in this medium?
(1) Photoautotroph
(2) Chemoautotroph
(3) Chemoheterotroph
(4) Photoheterotroph
A scientist is studying a microorganism that can grow in complete darkness by oxidizing ammonia (NH3) to obtain energy and uses carbon dioxide (CO2) as its carbon source. Which nutritional category does this microorganism belong to?
(1) Photoautotroph
(2) Chemoautotroph
(3) Photoheterotroph
(4) Chemoheterotroph
Which of the following best describes the nutrition of Amoeba?
(1) Autotrophic
(2) Heterotrophic
(3) Parasitic
(4) Chemolithotrophic
Which of the following best describes the nutrition of yeast?
(1) Photoautotrophic
(2) Chemoautotrophic
(3) Saprophytic
(4) Parasitic
Which of the following is a characteristic of photoautotrophic microorganisms?
(1) Use organic compounds as energy source
(2) Use sunlight as energy source
(3) Obtain energy from other organisms
(4) Live only in the dark
Which of the following is a saprophytic microorganism?
(1) Plasmodium
(2) Penicillium
(3) Mycobacterium
(4) Vibrio cholerae
Fill in the blank: Microorganisms that can use chemical energy from inorganic substances are called __________.
Fill in the blank: Microorganisms that feed on dead and decaying matter are called __________.
Fill in the blank: Microorganisms that live in or on another organism and cause harm are called __________.
Fill in the blank: Microorganisms that obtain energy from the oxidation of inorganic compounds are called __________.
True or False: All bacteria are autotrophs.
True or False: All fungi are autotrophic.
True or False: All microorganisms can use sunlight as an energy source.
True or False: All microorganisms require oxygen for their nutrition.
