Biology
During the mechanism of opening and closing of stomata, the important factor is
- the protein content of the cells
- the turgid and flaccid state of the guard cell
- the starch content of the cells
- the presence of chloroplast in the guard cell
Related Questions
Most widely used plant growth hormone in agriculture is
- auxin
- ethylene
- cytokinins
- abscisic acid
Assertion (A) The 'Swachh Bharat Abhiyan' was officially launched on 2nd Oct 2015.
Reason (R) Our Prime Minister Shri Narendra Modi took the cleanliness pledge at India Gate in Delhi. He wanted to fulfill Mahatma Gandhi's dream of a clean and hygienic India.
- Both A and R are true
- Both A and R are false
- A is true and R is false
- A is false and R is true
In auricles, systole and diastole respectively last for
- 0.3 sec and 0.5 sec
- 0.1 sec and 0.7 sec
- 0.2 sec and 0.6 sec
- 0.5 sec and 0.3 sec
Convex lens is used for the correction of long sightedness. Which of the following reasons support this statement?
P. The image of near by object falls behind the retina.
Q. The lens is too flat resulting in hypermetropia.
R. Uneven curvature of cornea.
- Only R
- Only Q
- Only P and R
- Only P and Q