List of top Plant Sciences Questions on Microbiology

Given below are two statements, one is labelled as Assertion (A) and other labelled as Reason (R). 
• [Assertion (A):] Biotrophs can be easily cultured in artificial medium. 
• [Reason (R):] Biotrophs lost their independent growth due to co-evolution with the host. 
In light of the above statements, choose the most appropriate answer from the options given below: 
 

Given below are two statements, one is labelled as Assertion (A) and other labelled as Reason (R).
• [Assertion (A):] Phytoplasma do not have cell wall and motility. 
• [Reason (R):] Phytoplasma colonize phloem. 
In light of the above statements, choose the correct answer from the options given below. 
 

Given below are two statements:
• [Statement (I):] Bacteria need pre-existing openings or wounds on plants to initiate infection. 
• [Statement (II):] Bacteria do not produce specialized infective structures. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

Which of the following traits are observed in eukaryotes but not in prokaryotes? 
• [(A).] 70S ribosomes 
• [(B).] Nuclear division by Mitosis 
• [(C).] Phagocytosis 
• [(D).] Binary fission 
• [(E).] Presence of Nucleolus 
Choose the correct answer from the options given below: 
 

Given below are two statements: 
• [Statement (I):] The lipids found in the inner (cell) membrane of bacteria are phospholipids. 
• [Statement (II):] The lipids in the outer membrane of Gram negative bacteria contain both phospholipids and lipopolysaccharides. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

Given below are two statements:
• [Statement (I):] Saccharomyces cerevisiae, an yeast, is the most widely used microorganism for industrial ethanol fermentation. 
• [Statement (II):] Saccharomyces cerevisiae produces ethanol through glycolytic (Embden Meyerhoff Parnas) Pathway. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

Given below are two statements: 
• [Statement (I):] The first amino acid in protein synthesis is Methionine in Eubacteria. 
• [Statement (II):] The first amino acid in protein synthesis is N-formyl-methionine in Archaea. 
In light of the above statements, choose the most appropriate answer from the options given below. 
 

Which of the following microorganisms can fix nitrogen symbiotically? 
• [(A).] Anabaena 
• [(B).] Azotobacter 
• [(C).] Frankia 
• [(D).] Ulothrix 
• [(E).] Bradyrhizobium 
Choose the correct answer from the options given below: 
 

Which of the following microorganisms are used in Yogurt preparation?
• [(A).] Bacillus cereus 
• [(B).] Bacillus amyloliquefaciens 
• [(C).] Streptococcus thermophilus 
• [(D).] Lactobacillus bulgaricus 
Choose the correct answer from the options given below: 
 

Which of the following food items is not prepared by fermentation?
Which of the following fungi form endomycorrhizal associations with the plants
Match List-I with List-II

List-I & List-II
(A). Discontinuous heating & (I). UV rays
(B). Destruction of all viable forms including spores & (II). Gamma rays
(C). Ionization of biological molecules & (III). Tyndallization
(D). Pyrimidine dimerization & (IV). Steam sterilization under pressure
Choose the correct answer from the options given below:
Given below are two statements, one is labelled as Assertion (A) and other labelled as Reason (R).
Assertion (A): The secondary spread of the pathogen propagules that are identical in virulence is mostly responsible for epidemics.
Reason (R): Secondary propagules are mostly asexually produced.
In light of the above statements, choose the correct answer from the options given below.
Choose the correct order of the following microbes based on their requirement of host - from dead to living
(A). Saprotrophs
(B). Biotrophs
(C). Hemibiotrophs
(D). Nectrotrophs
Given below are two statements :
Statement (I): Biogas is a mixture of $\text{CH}_4$, $\text{CO}_2$ and $\text{H}_2$.
Statement (II): Biogas is produced by aerobic digestion of organic waste material.
In light of the above statements, choose the most appropriate answer from the options given below.
Microbes which consume organic molecules for carbon and energy are called ?
In bacterial conjugation, what is the essential property of a donor strain ?
Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : In Bacillus culture raised in a chemically defined medium, sporulation is initiated in the stationary phase.
Reason (R) : Lack of nutrients and high cell density trigger sporulation.
In light of the above statements, choose the correct answer from the options given below.
Which of the following microorganisms lacks cell wall ?
Which of the following have the ability to convert ammonia into nitrite ?
(A) Nitrosomonas
(B) Nitrosospira
(C) Nitrosococcus
(D) Nitrobacter
(E) Nitrococcus
Choose the correct answer from the options given below :
Given below are two statements :
Statement (I) : Phytoplasmas are wall less bacteria.
Statement (II) : Phytoplasma do possess flagella.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Lichens are the symbiotic associations between a photobiont and a mycobiont partner.
Statement (II): Mycorrhizae are the symbiotic associations between plant root and fungi.
In light of the above statements, choose the most appropriate answer from the options given below.
Which of the following traits are observed in archaea ?
(A) Absence of Peptidoglycan in cell wall
(B) Resistant to kanamycin
(C) Endospore formation
(D) Presence of S layer
Choose the correct answer from the options given below:
Given below are two statements :
Statement (I): Plasma membrane in bacteria is composed of double layer of phospholipid molecules.
Statement (II): Plasma membrane is the site of enzymes involved in energy production in bacteria.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): Saccharomyces cerevisiae used in baking industry is a multicellular fungus.
Statement (II): Both haploid and diploid cells of Saccharomyces cerevisiae may divides asexually by budding.
In light of the above statements, choose the most appropriate answer from the options given below.