Multiple Choice QuestionsLate blight of potato is caused by
Ustilago
Pseudomonas
Phytophthora infestans
Colletotrichum falcatum
Most accepted theory for ascent of sap is
capillarity theory
root pressure theory
pulsation theory
transpiration pull theory
Which enzyme converts glucose into alcohol ?
Zymase
Diastase
Invertase
Lipase
A.
Zymase
Glucose and fructose are both converted to ethanol and carbon dioxide in presence of zymase enzyme.
C6H12O6 2C2H5OH + 2CO2
Glucose/ Fructose Ethanol
Invertase enzyme converts sugar into glucose and fructose.
C12H22O11 + H2O C6H12O6 + C6H12O6
Sugar Glucose Fructose
Gastric juice consists of weak gastric lipase which converts some fats into monoglycerides and fatty acids. Bile salts of the bile break down fat droplets into many small ones by reducing the surface tension offat droplets. This procress is called emulsification. This increases lipase action on fat. Lipase is present in the pancreatic juice and intestinal juice. Pancreatic lipase is the principal enzyme for the digestion of fat.
Fat Emulsified fat
Emulsified Fatty acid + Diglyceride
Diglyceride Fatty acid + Monoglyceride
Monoglyceride Fatty acid + Glycerol
Male Anopheles does not transmit malarial parasite because
it catches fever
it is too small to carry parasite
the parasite is killed in its stomach
it does not drink blood
The trisomy for 21st chromosome is called
Down's syndrome
Turner's syndrome
Sickle cell anaemia
Klinefelter's syndrome
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