Which one of the following is not a property of cancerous cells, whereas the remaining three are?
They compete with normal cells for vital nutrients.
They do not remain confined in the area of formation
They divide in an uncontrolled manner
They divide in an uncontrolled manner
D.
They divide in an uncontrolled manner
Contact inhibition is the natural process of arresting cell growth when two or more cells come in contact with each other. It is a property of normal cells. Cancer cells divide in uncontrolled manner and do not show contact inhibition.
Monascus purpureus is a yeast used commercially in the production of
ethanol
streptokinase for removing clots from the blood vessels
citric acid
citric acid
D.
citric acid
Monascus purpureus is a yeast used in the production of statins which are blood cholesterol lowering agents.
A good producer of citric acid is
Aspergillus
Pseudomonas
Clostridium
Clostridium
A.
Aspergillus
A good producer of citric acid is Aspergillus niger (a fungus). Clostridium produces butyric acid, Saccharomyces cerevisiae is used for bread baking fermenting malted cereals and fruit juices to produce ethanol. Pseudomonas (a bacterium) is used in Vitamin -B-12 production.
Match the following list of microbes and their importance:
| (a) | Sacharomyces cerevisiae | (i) | Production of immunosuppressive agents |
| (b) | Monascus purpureus | (ii) | Riperuing of Swiss cheese |
| (c) | Trichoderma polysporum | (iii) | Commercial production of ethanol |
| (d) | Propionibacterium sharmanii | (iv) | Production of blood cholesterol lowering agents |
Codes
A B C D
3 4 1 2
A B C D
4 3 2 1
A B C D
4 2 1 3
A B C D
4 2 1 3
A.
Codes
A B C D
3 4 1 2
A patient brought to a hospital with myocardial infarction is normally immediately given
penicillin
streptokinase
cyclosporin - A
cyclosporin - A
B.
streptokinase
Streptokinase (SK), a protein secreted by several species of streptococci can bind and activate human plasminogen. It is used as an effective and inexpensive. It is used as an effective and inexpensive thrombolysis medication in some cases of myocardial infarction and pulmonary embolism.
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