Types of microorganisms - class-X
Description: types of microorganisms | |
Number of Questions: 90 | |
Created by: Jayanti Mahajan | |
Tags: structural and functional unit of our body - the cell biological classification structure of living organisms living world characteristics and classification of living organisms the world of microbes living world and classification of microbes world of microbes micro organisms cell structure and micro-organisms bacteria classification of plants kingdom monera, protista and fungi cell and cell organelles microbes botany biology |
Hens egg is
True nucleus is absent in
Bacteria are made up of
A unicellular organism has
Which of the following is the location of mucilage capsule present in bacteria which serves as an extra covering?
Lifecycle of Saccharomyces cerevisiae is
Bacteria are-
Oidia resemble yeast in?
Select the wrong statements.
A. Pyruvic acid decarboxylase and alcohol dehydrogenase catalyse fermentation.
B. $NADH+H^+$ is reoxidised to $NAD^+$ in alcohol and lactic acid fermentation.
C. Yeasts poison themselves to death when the concentration of alcohol reaches about $31$ percent.
D. Prolonged fermentation results greater alcohol contents in alcohol beverages.
Bacterial genome consist of
The meiospores of yeast are nonmotile and called?
Which of the following microtubule arrangement is absent in the kinetosome of eukaryotic flagella?
The bacterial cell wall is made up of
Match the contents of Column-I with of Column-II.
Colum-I | Column-II | ||
---|---|---|---|
A | Monascus purpurens | i | Statins |
B | Aspergillus niger | ii | Cyclosporin-A |
C | Trichoderma polysporum | iii | Citric acid |
The bacteria which lacks flagella and moves by gliding are included in?
Bacteroides are?
Membrane bound organelles are absent in
Yeast is ________.
Which of the following is common features of Amoeba?
A cancer which is not a tumor is _____________.
DNA of E.coli
Muramic acid is present in cell walls of
The body of Amoeba is made up of .......... cell.
What are the major groups of microorganisms?
Unicellular organisms are capable of (i) Independent existence (ii) Performing the essential functions of life
Many bacteria bear minute hairy structures on their cell wall which are involved in genetic transfer are called as
Escherichia colt has the following combination of characters.
Binary fission in Amoeba involves ____________.
Torula condition' occurs in ________.
Amoeba takes food through ____________.
Histological differentiation is absent in ____________.
In Amoeba, the cell division takes place ____
Some bacteria are considered plants as they
In bacteria the site for respiratory activity is found in
Sex factor of bacteria is
Which is not true of bacterial cell wall?
Murein of bacterial cell wall is derivative of
Bacterial cell membrane is made up of
Teichoic acid is present in cell wall of
Some bacteria have a capsule outside cell wall. It is made of
Why is a capsule advantageous to a bacterium?
Ageing is slow or absent in
Select the wrong statement of a bacterial cell
Which one of the following is absent in eukaryotes?
DNA of Escherichia coli is
Mitochondria are absent in
Alga Acetobularia is
Bacteria with tuft of flagella at one pole are
Bacteria having a tuft of flagella at both the poles are
A bacterial cell contains.
$NH _3$ in amoeba is excreted through
Entamoeba histolytica is transmitted through
How many young Amoebae hatch out from a cyst of E. histolytica?
Which one of the following is the most important criterion used to classify living organisms into three primary kingdoms, namely-Archaea, Eubacteria and Eukarya?
Rhodopseudomonas and Rhodospirillum are ______________.
Yeast die when alcohol concentration reaches about $13$%, still yeast perform alcholic fermentation why?
Cell division is a type of reproduction in
Choose the correct answers from the alternatives given.
Surface appendages used by -bacteria to attach to one another and to host organisms are called:
Which of the following organisms do not depend on reproduction to exchange genetic information?
Select the pair that shows the same relationship as the animals in the box.
Amoeba : Paramecium.
Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are.
Which of the following pairs of an animal and a plant represents endangered organisms in India?
Superbugs are
Which cell organelle is absent in anaerobic bacteria?
State whether the following statements are true or false.
All denitrifying bacteria are heterotrophs.
Which of the following can be made into crystal form?
All viruses live ________
The organisms which display properties of both living and nonliving are
Scientific name of "Tobacco mosaic virus" is standardised through the rules of:
Which one of the following statements about viruses is correct?
The latest view for the origin of virus is that
A virus can be considered living being as it
Viruses are non-cellular organisms but replicate themselves once they infect the host cell. To which of the following kingdom do viruses belong to?
Viruses are living because
All are oncogenic virus except?
Which of the following is the characteristic feature that distinguishes an algae from fungi?
Which of the following microorganism is autotrophic in nature?
Algae can grow
Which of the following statements is true about viruses?
Make correct pair
A. Cyanophyceae b. Green colour
B. Chlorophyceae a. Blue green colour
C. Phaeophyceae d. Red colour
D. Rhodophyceae c. Brown colour
Which of the following is the reason behind the autotrophic nature of algae?
Which of the following is a microscopic plant?
The agents which are known to cause Creutzfeldt-Jakob disease (CJD) are
Which gives the green colour appearance to the pond?
Viruses that infects plants generally have
Cryptogram of a virus (Gibbs and Harrison 1968) has $4$ pairs of symbols to be used in virus classification. The pair $1$ indicates
The latest view for the origin of viruses is?
Restriction endonuclease enzyme obtained from?