MEDIUM
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Choose the wrong statements regarding bacterial cells:
A. Glycocalyx is the outermost envelope in bacteria.
B. The glycocalyx could be a loose sheath called a capsule.
C. The glycocalyx may be thick and tough called the slime layer.
D. A special structure formed by the plasma membrane is called mesosome.
E. Small bristle-like fibres sprouting out of the cell are called fimbriae.

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Important Questions on Biological Classification

MEDIUM
The primary producers of the deep-sea hydrothermal vent ecosystem are
EASY
The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the:
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Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
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Which of the following is incorrect about Cynobacteria?
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Which one of the following statements is wrong?
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Which of the following are found in extreme saline conditions?
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Anoxygenic photosynthesis is characteristic of:
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Who discovered the transfer of genetic material from one bacterium to another bacterium through pilus?
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Ruminant animals can digest cellulose in their food, whereas human beings are unable to do so. This is because.
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The structures that help some bacteria to attach to rocks and/or host tissue are:
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Bacteria are grouped under four categories based on their shape. Study the given figure and identify A. B. C and D?

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EASY
In a mixed culture of slow and fast growing bacteria, penicillin will