Short Answer Type
Long Answer TypeShort Answer TypeWith the help of well-labelled diagrams, describe the process of plasmolysis in plants, giving appropriate examples.
(b) Explain what will happen to a plant cell if it is kept in a solution having higher water potential.
Long Answer Type
Multiple Choice QuestionsWater vapour comes out from the plant leaf through stomatal opening. through the same stomatal opening. carbon dioxide diffuses into the plant during photosynthesis. Reason out the above statements using the following options
Both processes can happen together because the diffusion coefficient of water and CO2 is different
The above processes happen only during night time
One process occurs during day time and other at night
One process occurs during day time and other at night
Which of the following criteria dows not pertain to facilitate transport?
Requirement of special membrane proteins
High selectivity
Transport saturation
Transport saturation
D.
Transport saturation
Facilitated transport is a form a passive transport in which materials are moved across the plasma membrane by a transport protein down. Their concentration gradient. It requires integral membrane proteins and highly selective biological membranes to cross.
Saturation occurs in facilitated, diffusion because not enough carriers may be available to handle all the free solute molecules. The rate of movement may reach a maximum. Uphill transport is a process in which diffusion of a component occurs from a less concentrated permeable stream.
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