Which of the following statements regarding Mycoplasma is INCORRECT?
They can pass through filters smaller than 1 micron.
They are considered the smallest living cells.
They lack a cell wall.
They possess a rigid cell wall.
Related Questions
The cell wall of bacteria is primarily composed of:
Peptidoglycan
Chitin
Cellulose
Keratin
Bacterium which reduces nitrates in soil to nitrogen is
Nitrosomonas
Pseudomonas
Rhizobium
Clostridium
Which type of DNA is found in bacteria?
Helical DNA
Membrane bound DNA
Straight DNA
Circular free DNA
Which of the following bacteria fixes nitrogen without any plant association?
Rhizobium
Nostoc
Anabaena
Azotobacter
Some bacteria utilises inorganic substances like nitrate, nitrite, ammonia, etc., for the oxidation and release of energy for ATP production. These are known as
Cyanobacteria
Chemosynthetic autotrophic bacteria
Heterotrophic bacteria
Saprophytic bacteria
Plasmids occur in
Viruses
Chromosomes
Bacteria
Chloroplasts
Which one of the following statements is wrong?
A) The Earth revolves around the Sun.
B) Water freezes at 0 degrees Celsius.
C) Humans have landed on Mars.
D) Light travels faster than sound.
Which of the following is a nitrogen fixing organism?
BGA
Rhizobium
Both (1)and (2)
Agaricus
Specialized cells called heterocysts are present in
Dinoflagellates
Chrysophytes
Euglenoids
Cyanobacteria
….. include blue-green algae, which have chlorophyll-a similar to green plants.
Complete the given sentence with an appropriate option
Chemosynthetic autotrophic bacteria
Photosynthetic autotrophic bacteria
Protista
Saprophytic
