Plant Physiology Flashcards
Mimosa pudica
Touch me not plant
Helianthus annus
Sunflower
. unidirectional movement of a whole or part of a plant towards the direction of stimuli
Tropism
How many types of tropism
5
Phototropism geotropism hydrotropism thigmotropism chemotropism
Movement of plant part towards light
Phototropism
Eg shoot of the plant
Moment of plant in response to gravity
Geotropism
Eg root
Movement of plant or part of a plant toward water
Hydrotropism
Eg root
Movement of a plant part due to touch
Thigmotropism
Eg climbing vines
Movement of your part of plant in response to chemical
Chemotropism
example growth of your Pollen tube in response to sugar present on the Stigma
Some halophytes produce negatively geotropic roots
Rhizophora
This roots turn 180 degree upright for respiration
Movement are non directional response of a plant or part of a plant to Stimulus
Nastic
Movement of a part of a plant in response to light
Photonasty
Eg of photo nasty
Taraxacum officinale - blooms in morning and closes in the evening
Ipomea alba (moon flower)-open in night and closes during day
Movement of part of plant in response to touch
Sesimonasty (thigmonasty)
Eg mimosa pudica
Venus flytrap
Dionaea muscipula
Movement of part of a plant is associated with change in temperature
Thermo nasty
Eg thulip flower blooms as the temperature increase
Plants also need ________to carry on cellular respiration
Oxygen
The end product of photosynthesis is________ which will be converted into Starch and stored in the plant body
Glucose
Vespa orentalis
Xanthopterin
The loss of water in the form of water vapour from the aerial part of the plant body is called
Transpiration
Functions of inspiration
Create pull in leaf and stem
Create absorption force in root
Necessary for continuous supply of minerals
Regulate the temperature of plant
The air exchange take place in the minute pores called
Stomota
Transpiration take place through
Stomota
