The opening and closing of stomata is directly controlled by the___________?

Related Mcqs:

1. There are _________ hypothesis which may explain opening and closing of stomata?

   A. One B. Two C. Three D. Four...

2. Stomata cover only ______________ of leaf surface?

   A. 0.03 – 0.04% B. 10% C. 1-2 % D. 50%...

3. There are _________ stomata per square cm of leaf surface in Tobacco plants?

   A. 1200 B. 12000 C. 100,000 D. 1000...

4. Low level of CO2 favours _________ of the stomata.

   A. Opening B. Closure C. Both of these D. None of these...

5. Stomata open due to _________ of K+ into the guard cells from the surrounding epidermis

   A. Diffusion B. Active transport C. Osmosis D. All of these...

6. 95% of the cytoplasm of red blood cells is the___________?

   A. Antibodies B. Hemoglobin C. Enzymes D. Proteins...

7. In HomoSapiens (Human) the fertilization occurs in the___________?

   A. Uterus B. Ovaries C. Oviduct D. Cervix Submitted by: Mansoor Ahmed Suhag...

8. The single main opening of the sponge cavity is____________?

   A. Osculum B. Ostia C. Spongocoel D. None of these...

9. At the induction of action potential opening of Na+ gate with influx of Na+ is a ___________ processes?

   A. Active transport B. Passive transport C. Diffusion D. none of these...

10. Epinasty is controlled by_____________?

    A. Gibberellins B. Abscisins C. Auxins D. Cytokinins...