Plant Growth and Development · Biology · MHT CET (Biology)
MCQ (Single Correct Answer)
Match the types of plants in Column I with the time of the year when they flower given in Column II.
| Column I |
Column II |
||
|---|---|---|---|
| i. | Short day plants |
a. | throughout the year |
| ii. | Long day plants | b. | in winter |
| iii. | Day neutral Plants | c. | in summer |
While describing the dynamics of growth in plants, Relative Growth Rate (RGR) is determined by the following formula.
Which one of the following phytohormones causes epinasty?
If dark period is interrupted by a flash of red light of 660 nm , then SDP will not flower. But if it is immediately followed by _________ then SDP will flower.
The figure shows photoperiodism. Identify its correct explanation from the following.
Which one of the following represents qualitative growth in plants?
Which one of the following plant hormones does NOT prevent abscission in plants?
Which one of the following occurs maximum during exponential growth phase in plants?
Given below are two statements.
Statement I - Gibberellins promote flowering in long day plants.
Statement II - ABA inhibits flowering in long day plants but stimulates flowering in short day plants. In the light of above statements, choose the correct option given below:
According to proton transport theory of stomatal mechanism, protons are formed in the guard cells when _________ .
While studying flowering behaviour in __________ and ___________ plant, Garner and Allard discovered photoperiodism.
Phenotypically tall plants can be obtained from genetically dwarf maize plants by application of_________
Which plant hormone is called antitranspirant?