Items needed for synthesis of plant food in green leaves are _________ & the process through which it takes place is called photosynthesis:

Related Mcqs:

1. The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:_________?

   A. Potash
   B. Nitrogen
   C. Calcium
   D. Both a & c

   Submitted by: Shafiq Rehman

2. Photosynthesis takes place in_____________________?

   A. All green parts of plants
   B. Only leaves
   C. Only flowers and fruits
   D. none

3. When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?

   A. Albinism is dominant over green characters
   B. Green plastids of male parent become nitrated
   C. Plastids are inherited through maternal parents
   D. Crossing over results in structural changes in green plastids

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

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

5. Nutritive elements needed in large quantities to ensure normal plant development:

   A. N, P, K
   B. S, Mg, Ca, Fe
   C. Both a & b
   D. None of a & b

   Submitted by: Shafiq Rehman

6. Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:

   A. Mull
   B. Mulch
   C. Mycorrhizae
   D. Muck

   Submitted by: Shafiq Rehman

7. 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

8. Main product of photosynthesis is_____________________?

   A. C6H12O6
   B. C12H24O12
   C. C3H6O6
   D. C5H12O6

9. The net reaction of photosynthesis is_____________________?

   A. CO2 + H2O light O2 + (CH3O)
   B. CaCO3 + 2HCl CaCl2 H2O+CO3
   C. ((CH2O) + O2 CO2 + H2O)
   D. None of the above

10. Algal photosynthesis increases pH of water and releases___________________?

    A. O2
    B. CO2
    C. SO3
    D. All the above