Degradation of green colour of fruits is due to___________________?

Related Mcqs:

1. According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?

   A. Drought stress
   B. Accelerated erosion & salinization
   C. Depletion of soil fertility and SOM
   D. All of the above

   Submitted by: Shafiq Rehman

2. Ripening fruits soften due to___________________?

   A. Jelly formation at acidic pH
   B. Soubulization of pectate of middle lamelle
   C. Conversion of starch in sugar
   D. Incorporation of pectate in middle lamella

3. A condition of green plant in which they become unhealthy and pale yellow in colour in known as_________________?

   A. Chloroplast
   B. Chromoplast
   C. Leucoplast
   D. Chlorsis

4. Chilling injury in fruits occurs due to__________________?

   A. Accumulation of ethanol
   B. Accumulation of acetaldehyde
   C. Accumulation of toxic compounds
   D. All the above

5. Almost one third of the land area through out the world is affected by land degradation. Pakistan’s agriculture sector though facilitates employment to >65% but is facing challenges from:

   A. Erosion
   B. Salinity
   C. Waterlogging
   D. All of the above

   Submitted by: Shafiq-ur-Rehman

6. Okra, green peas, green beans and leafy vegetables are____________________?

   A. Low acid foods
   B. Medium acid foods
   C. Acid foods
   D. High acid foods

7. Genetic correlation between two variables may be due to___________________?

   A. Gene interaction
   B. Peliotropy
   C. Dominance
   D. Selection differential

8. Undesirable flavor in the food during storage is due to___________________?

   A. Prooxidants
   B. Antioxidants
   C. Rancidity
   D. None of the above

9. The problem of soil crosion Thal and Cholistan is predominantly due to___________________?

   A. Wind
   B. Air
   C. Water
   D. All the above

10. Fruits are an excellent source of_____________________?

    A. Vitamins
    B. Minerals
    C. Carbohydrates
    D. All the above