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Micro-Organisms
Micro Organisms - 8th Std Science
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Question 1 |
Micro organisms can be seen through _________
Microscope | |
naked eye |
Question 2 |
Micro organisms are measured in _______
Microns & Millimicrons | |
Millimetre |
Question 3 |
Virus is a Latin word which means_______
Poison | |
Protozoa |
Question 4 |
The study of viruses is called ________
Virology | |
Phycology |
Question 5 |
The micro organisms show both living and non-living characteristics ______
Virus | |
bacteria |
Question 6 |
Virus was discovered by _______
Ivanowsky | |
Antonvon |
Question 7 |
Virus attack & bacteria or bacteria eater is ________
Bacteriophage | |
Phycophage |
Question 8 |
Virus attacks or infects the plant is ________
Phytophage | |
Phycophage |
Question 9 |
Virus infects the algae is _________
Phytophage | |
Phycophage |
Question 10 |
Virus infects animal is ________
Zooghage | |
Mycophage |
Question 11 |
Virus infects fungi is ______
Mycophage | |
Phycoophage |
Question 12 |
The study of bacteria is called _______
Bacteriology | |
Mycology |
Question 13 |
Bacteria were first observed by _____
Antonvon Leeuwen hoek | |
Ivanowsky |
Question 14 |
The bacterial cell is a ________
Prokaryotic cell | |
Eukaryotic Cell |
Question 15 |
Bacteria Contains ________ Pigments.
bacteriochlorophyll | |
chlorophyll |
Question 16 |
_________ are the organs of motility.
Flagella | |
Pili |
Question 17 |
Flagella are thread like _______
Appendages | |
Pigments |
Question 18 |
_________ are considered to be organs of attachment.
Pili | |
food granules |
Question 19 |
Bacteria are measured in _______
Microns | |
Millimicrons |
Question 20 |
________ bacteria are spherical shaped.
Cocci | |
bacilli |
Question 21 |
_______ bacteria are rod shaped.
bacilli | |
cocci |
Question 22 |
_________ bacteria are cork screw shaped.
Spirillum | |
Vibro |
Question 23 |
________ bacteria comma shaped.
Vibro | |
Cocci |
Question 24 |
A single flagellum is at one end of the bacteria ________
Monotrichous | |
Polutrichous |
Question 25 |
A tuft of flagella arising at both end of the bacteria is __________
Amphitrichous | |
Atrichour |
Question 26 |
Tuft of flagella is at one end of the bacteria _______
Lophotrichous | |
Peritrichous |
Question 27 |
Flagella all around the bacterial cell is _______
Peritrichous | |
Atrichous |
Question 28 |
A bacterial cell without any flagella is ________
Atrichous | |
Amphitrichous |
Question 29 |
_________ is a unicellular green algae.
Chlamydomonas | |
Yeast |
Question 30 |
Chlamydomonas has ________ shaped chloroplast.
Cup | |
ring |
Question 31 |
An _______ is located at the anterior end of chlamydomonas
eye-spot | |
chloroplast |
Question 32 |
There are _______ flagellae at the narrow end of the chlamydomonar cell.
Two | |
Three |
Question 33 |
The organ of locomotion in chlamydomonas is _______
flagellae | |
pyrenoid |
Question 34 |
The chloroplast of chlamydomonas has _______ which contains starch
Pyrenoid | |
eye-spot |
Question 35 |
The study of algae is called _____
phycology | |
mycology |
Question 36 |
______ is a unicellular fungi.
yeast | |
bacteria |
Question 37 |
Yeast is _______ fungs.
Saprophytic | |
Parasitic |
Question 38 |
The yeast cell is ________ shaped.
Oval | |
Conical |
Question 39 |
Fungi do not possess________
Chlorophyll | |
mitochondria |
Question 40 |
The study of fungi is called mycology_____
mycology | |
phycology |
Question 41 |
Fungi are incapable of _________
Photosynthesis | |
Fermentation |
Question 42 |
Photozoans are ________ organisms.
Unicellular | |
multicellular |
Question 43 |
Parasitic forms cause ________
diseases | |
Photosynthesis |
Question 44 |
Photozoans show mainly ___________ modes of life.
Two | |
One |
Question 45 |
The wonder drug ‘Penicillin’ was discovered by _______
Alexander Fleming | |
Robert Koch |
Question 46 |
An example of ammonifying bacteria is ________
Bacillus ramosus | |
Rhizobium |
Question 47 |
An example of nitrifying bacteria is _______
Nitrobacter | |
Azatobacter |
Question 48 |
An example of root nodules bacteria ________
Rhizobium | |
Bacillus Samosus |
Question 49 |
_______ is an example of single cell protein.
Chlorella | |
Agaricus |
Question 50 |
Algal bloom leads to loss of species diversity which is known as ______
Eutrophication | |
Nitrogen fixation |
Question 51 |
Match the following
- Streptococus lactis a. Vinegar
- Acetobacter aceti b. Oxalic acid
- Aspergillus niger c. Lactic acid
2 3 1 | |
3 1 2 | |
1 3 2 | |
3 2 1 |
Question 52 |
Match the following
- Xanthomonas citri a. Bunchy top of Banana
- Xanthomonas oryzae b. Blast disease of rice
- cercospora personata c. Citrus canker
- Pyricularia oryzae d. Tikka disease of ground nut.
- Bunchy top virus e. Bacterial blight in rice
3 2 1 4 5 | |
5 4 1 3 2 | |
1 4 5 2 3 | |
3 2 1 5 4 |
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