The substance that an enzyme acts upon is known as___________________?

Related Mcqs:

1. The enzyme responsible for biological nitrogen fixation is________________?

   A. Lipase
   B. Nitrogenase
   C. Isomerase
   D. Kinease

2. The sever salinity problem has taken lands out of production as___________________?

   A. 50%
   B. 10%
   C. 45%
   D. 30%

3. Mg in plants act as___________________?

   A. Protein activator
   B. Enzyme activator
   C. Starch activator
   D. None of the above

4. Partially decomposed organic matter is termed as___________________?

   A. Humus
   B. Farm yard manure
   C. Composet
   D. All the above

5. The harmful influence of one living plant on another living plant by the secretion of a toxic substance is called________________?

   A. Allergy
   B. Allelopathy
   C. Parasitism
   D. Antagorusm

6. The transport of a substance across a biological membrane against a concentration gradient is called___________________?

   A. Passive transport
   B. Active transport
   C. Absorption
   D. Dissolution

7. Gaseous loss of a substance from the soil or from fertilizer or manure is called_________________?

   A. Volatilization
   B. Evaporation
   C. Transpiration
   D. Evapotranspiration

8. Mutual association between fungi and roots of plants is known as_________________?

   A. Rhizospher
   B. Mycorrhizae
   C. Root fungi
   D. None of the above

9. The ratio of treatment variance to error variance is known as_________________?

   A. Correlation
   B. F-value
   C. Critical difference
   D. I-value

10. The movement of water in soil profile is.known as__________________?

    A. Diffusion
    B. Percolation
    C. Absorption
    D. All the above