SAT Biology - Microbiology
Exam Duration: 45 Mins Total Questions : 30
Extra chromosomal genetic material are called
- (a)
Plasmids
- (b)
Mesosomes
- (c)
Ribosomes
- (d)
Lysosomes
Which of the following are features of the bacterial cell wall?
- (a)
Peptidoglycan
- (b)
Flagellin
- (c)
Lipopolysaccharide teichoic acid
- (d)
Both A & C
What type of organism that grows on and derives nourishment from dead or decaying organic matter?
- (a)
Facultative anaerobes
- (b)
Strict aerobes
- (c)
Saprophyte
- (d)
Opportunistic pathogen
Which is found in aquatic animals and reptiles?
- (a)
E.coli
- (b)
E.aerogehes
- (c)
E.clocae
- (d)
E.tarda
During the stationary phase of bacterial growth, the population of living cell is _____ the population of dying cells?
- (a)
greater than
- (b)
smaller than
- (c)
equal to
- (d)
increasing faster than
When nutrients are limiting, some bacterial species can form resistant structures called________
- (a)
Endospores
- (b)
Cysts
- (c)
Seeds
- (d)
Capsules
Facultative anaerobes can live with or without ------------- gas
- (a)
Carbon dioxide
- (b)
Hydrogen
- (c)
Nitrogen
- (d)
Oxygen gas
A bacillus bacterium with a single flagellum at each end is described as
- (a)
Monotrichous
- (b)
Amphitrichous
- (c)
Lophotrichous
- (d)
Peritrichous
The rod shape of the bacteria ia is termed as
- (a)
Coccus
- (b)
Bacillus
- (c)
Pleomorphic
- (d)
Rod
Botulism is an example of ___________
- (a)
Water borne disease
- (b)
Food borne intoxication
- (c)
Water borne intoxication
- (d)
Food borne infection
The imidazole drugs are of valve for treating
- (a)
Viral diseases
- (b)
Protozoal diseases and bacterial diseases
- (c)
Bacterial diseases
- (d)
Fungal diseases
A diseases that occurs at a low level in a certain geographic area is an
- (a)
Local disease
- (b)
Pandemic disease
- (c)
Endemic disease
- (d)
Systemic disease
What is Escherichia coli?
- (a)
Fungus
- (b)
Algae
- (c)
Bacteria lives in intestine of mammals
- (d)
Virus
What is symbiosis?
- (a)
An association between two organism where there is no discernible effect
- (b)
An association between two organisms where at least one of them gains a benefit
- (c)
A mutally beneficial association between two organisms
- (d)
An association between two organisms where neither is harmed
Prokaryotes are ____
- (a)
have nucles
- (b)
contain DNA and RNA
- (c)
does not contain cell wall
- (d)
unicellular
Which of the following microbes are fungi?
- (a)
Candida
- (b)
Plasmodium
- (c)
Clostridium
- (d)
Mycobacterium
Typical conditions used for sterilization are
- (a)
1000C for 10 minutes
- (b)
1210C at 15 Psi for 15 minutes
- (c)
800C for 15 minutes
- (d)
90°C at 16 Psi for 10 minutes
Prokaryotic cell divide by a process known as
- (a)
Conjugation
- (b)
Mitosis
- (c)
Binary fission
- (d)
Binary fusion
A disease in which the agent is acquired directly from the environment and is not transmissible is an disease_________
- (a)
Local
- (b)
Secondary
- (c)
non-communicable
- (d)
Acute
The organism of diphtheria and _______ are known for their production of _______
- (a)
Typhoid fever, Antitoxins
- (b)
Typhoid fever, Exotoxins
- (c)
Tetanus, Antitoxins
- (d)
Tetanus, Exotoxins
Sexual reproduction in the fungi
- (a)
occurs in all phyla
- (b)
Provides an opportunity for the evolution of new genetic forms
- (c)
Results in sporangia and conidia
- (d)
Takes place only in the mitosporic fungi
The baking and brewing yeasts
- (a)
belong to the genus Aspergillus
- (b)
breakdown glucose and other carbohydrates
- (c)
induce bread to rise by producing 02 gas
- (d)
cause serious disease in humans
The individual filaments that make up the body of a fungus are called ___________
- (a)
Vascular tissue
- (b)
Rhizoids
- (c)
Stem cells
- (d)
Hyphae
Fungi are important to an ecosystem are
- (a)
Producers
- (b)
Controllers
- (c)
Decomposers
- (d)
Regulators
Which of the following has been the most successful at fighting viral disease?
- (a)
Vaccination
- (b)
Vector control
- (c)
Drug therapy
- (d)
Both A & B
Which of the following is autotrophic?
- (a)
Paramaecium
- (b)
Foraminifera
- (c)
Ameoba
- (d)
Euglena
The word 'pseudopodia' means?
- (a)
Small cell
- (b)
Fake eye
- (c)
False foot
- (d)
First animal
Which of the following is unicellular and heterotrophic?
- (a)
Amoeba
- (b)
Paramaecium
- (c)
Algae
- (d)
Both amoeba & paramaecium
Plant-like protists are collectively called?
- (a)
Protozoans
- (b)
Algae
- (c)
Diatoms
- (d)
Pseudopodia
The group containing animal-like protists is the________
- (a)
Slime molds
- (b)
Water molds
- (c)
Protozoans
- (d)
Algae
