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प्रश्न
Give the scientific terms used to represent the Growth of a pollen tube towards ovule.
उत्तर
Chemotropism
APPEARS IN
संबंधित प्रश्न
Give the scientific terms used to represent the Winding of tendril around a support.
Plant parts show two types of movements, one dependent on growth and other independent of growth. Give one example which does not depend on growth
The root of a plant grows downward. This is known as ______.
Define hydrotropism. Give one example of hydrotropism. State whether this example is of positive hydrotropism or negative hydrotropism. Illustrate your answer with the help of labelled diagram.
The plant part which exhibits negative geotropism is :
(a) root
(b) stem
(c) branch
(d) leaves
The bending of root of a plant in response to water is called ______.
Plants take in carbondioxide for photosynthesis but need ______ for their living.
State whether true or false. If false, correct the statement.
The response of a part of plant to the chemical stimulus is called phototropism.
Assertion: Plants do have a nervous system for control and coordination.
Reason: Plants use electrochemical means to convey information from cell to cell.
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
