A researcher observes that the growth rate of a plant significantly increases after the application of a specific hormone. Further analysis reveals that this hormone promotes cell elongation primarily in the intercalary meristem. Which hormone is most likely responsible for this observed growth?
Auxin
Cytokinin
Ethylene
Gibberellin
Related Questions
Developing embryo (in vitro) shows
Geometric growth
Arithmetic growth
Geometric and arithmetic growth
None of the above
The type of growth where new cells are always being added to plant body by the activity of meristem is called
Closed form of growth
Diffused form of growth
Open form of growth
Discontinuous form of growth
Which phase of growth is characterized by a rapid increase in cell size?
Meristematic
Maturation
Elongation
Differentiation
Name the process when dedifferentiated cells again loss the ability to divide and get mature?
Cell-enlargement
Redifferentiation
Dedifferentiation
Differentiation
Growth in plants is said to be open or indeterminate. What does this primarily refer to?
Fixed number of organs at maturity
Limited lifespan
Continuous cell division in meristematic tissues
Growth restricted to specific seasons
Which of the following plant hormones promotes cell division and differentiation?
Auxins
Gibberellins
Cytokinins
Abscisic acid
Auxanometer is used to measure
The growth in length of a plant organ
The growth in breadth of a plant organ
Population of the pests attacking a plant
Both (a)and(b)
Which of the following is NOT a characteristic of growth?
Increase in size or quantity
Development and maturation
Progress and advancement
Decline in quantity or size
In plants, growth can be measured by using all of the following parameters, except
Increase in surface area
Increase in cell number
Increase in respiration rate
Increase in volume
I. Lag phase
II. Stationary phase
III. Exponential phase
Arrange the above steps of geometrical growth (from beginning to last) in a correct sequence of their occurrence and choose the correct option accordingly
I β II β III
I β III β II
III β II β I
III β I β II