--%>
Assignment Help - homework help

Opening and closing of stomata

Explain how do plants control opening and the closing of the stomata?

E

Expert

Verified

The opening and closing of the stomata depend on the requirement of the plant in order to lose the water and heat through the transpiration (exit of the water vapor means removal of the heat). When plant has the excessive water the guard cells become turgid and ostiole opens. Whenever the little water is accessible the guard cells become flaccid and ostiole closes. Water goes into and goes out the stomata by osmosis. Other factors just like the light intensity and carbon dioxide concentration within the leaves persuade the opening and the closing of stomata. When luminosity is high the photosynthesis rate rises and the stomata open in order to absorb more carbon dioxide from the environment and liberate the heat; when the luminosity is low the stomata tend to close. When concentration of the carbon dioxide in photosynthetic parenchyma is low the stomata open in order to absorb more of the gas and make the photosynthesis possible; when such concentration is high the stomata tend to close.

   Related Questions in Biology

  • Q : Describe Customer Retention Customer

    Customer Retention: It is an assessment of the product or service quality given by a business which measures how loyal its customers are. The Customer retention statistics are usually expressed as a percentage of long term clients, and they are signif

    		•
  • Q : Phase of cardiac cycle during filling

    Name the phase of cardiac cycle during which the ventricles are filled? Answer: The filling of ventricles with blood takes place during diastole.

    		•
  • Q : Proteins with similar number of amino

    Are proteins with similar number of each and every different amino acid which forms them essentially the same proteins?

    		•
  • Q : Gene expression signature Describe "

    Describe "gene expression signature" for a tumor?

    		•
  • Q : Illustrations of secretory cells

    Illustrations of secretory cells: Exocrine and Endocrine pancreatic cells, parathyroid and thyroid endocrine cells, adenohypophysis, adrenal & pineal endocrine cells, the numerous kinds of gastric exocrine and endocrine cells, the mucous secretory

    		•
  • Q : Employ supply and demand to analyze

    The U.S. government contain two different methods to deal along with illegal drug use. Firstly, the government has tried a "war on drugs", along with the idea of keeping illegal drugs out of the country. Secondly, the "Just say no" campaign has been utilized t

    		•
  • Q : State the term haemotophoiesis Briefly

    Briefly state the term haemotophoiesis?

    		•
  • Q : Sources of Conflict - Organizational

    1)     Organizational change: people hold differing views over the direction to go, the routes to take and their likely success, the resources to be used, and the probable outcomes. With the pace of technological, political, and social change increasing and th

    		•
  • Q : Question on sales tax-subsidy policy

    Considering that all firms have identical constant long-run average costs before the sales tax-subsidy policy, what do you assume to happen to the price of product, the output of every firms, and industry output, in the short run & the long run? (Hint: How

    		•
  • Q : Is embryonic growth in birds direct or

    Is embryonic growth in birds direct or indirect? Answer: The embryonic growth is direct, there is no larval phase.

    		•