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- Describe various factors that affect plant growth (e.g. growth regulators,sunlight, nutrients, water, tropism), and explain by giving example, why someplants can live in the forest although they might not be exposed to the sun ‘nosunlight can reach them’.Give an example of an environmental condition where stomates are unable to maintaincooling of the leaf and heat stress occurs. Explain the consequences of heat stress onphotosynthesis, membrane integrity and proteins.In the form of schematic diagram; briefly illustrate the process that occurs during the cohesion–tension theory of sap ascent is shown.
- Movement of sugar within phloem from source to sink involves... Select all that apply. Active transport diffusion companion cells sieve-tube membersExplain the factors responsible for the growth of plantExplain transport in the phloem (driving forces, process, major organs involved). How is this affected by the environment/time of year?
- The example of the plant in which vegetative propagation is occured by leaves is called 1. Cannabis 2. Chrysanthemum 3. Bryophyllum 4. BrassicaDescribe the short-distance transport of water into the xylem. Use the terms root hairs, endodermis, and Casparian strip.Explain the alternative routes for the uptake of water and dissolved nutrients in roots. Highlight the processes and structures involved.
- Transport through the Phloem: Arrange the sequence by the given statements. Use 1 is the first and 5 is the last stepChoose the best answer for following question Stomata close when a plant is water-stressed. a. auxin d. ethyleneb. gibberellin e. abscisic acidc. cytokininExamples of C3, C4 and CAM plants.