How does stomatal conductance increase in an elevated carbon dioxide environment?
439570
Increase Co2 result in the more production of sucrose in the guard cells.That increases its osmotic potential.Water from adjoining cells rush in.Resulting increase in it's opening.
101328
stomata  are  mini  factories  that  use  sunlight  to  convert  co2 gas and water  to  simple sugars [glucose]   they  also  reverse  and  give off  watervapor  and  oxygen ......stomata  on the  lower  side  wouldnot  allow  the  rays  of  the  sun  to  reach them...though  certain  rays  could  penetrate the the  leaves...thewavelengths  needed  wouldnt  be  there
464536
this is a very good question, i never thought of it this way.\n\nI think the level will increase but very small amount.\n\nCO2 is being added to the water and forming H2CO3, this is staying in solution. So nothing is lost, only CO2 is being added. The density will be a little higher now, so the volume will not change by much, but should be on the postive side.\n\nOnly about one mole of CO2 can be put into solution at room temperture, which isnt much. So any change in density and volume will be very small.\nWill take too much of my time to work out the excact numbers, but what a good question.
289845
Yes, they have stoma which open and close pores on leaves.  Stoma are sensitive to moisture levels.  The leave turning thing is probably a different mechanism.  But yeah plants are very sensitive to water levels, esp in desert areas.  The leaves need water for photosynthesis so it makes sense that they have specialized to capture the most water.
905156
Advantage and disadvantage:\n\nPlants with high photosynthesis rates grows faster but has a shorter term of life.
569189
Oxygen is one. Plants pick up CO2 and convert it to oxygen.\nWater\nFish\nTrees
337412
The answer you are looking for is in the soil-plant-atmosphere continuum.  I'm too tired to give a full answer now so I will come back to this.\n\nIt basically works on negative pressure.  Air is the driest in the continuum and pulls water through the stomates from the xylem (not the phloem) up the stem from the roots, from the soil.\n\nI'll come back later.
1126251
Okay, for plants to gain energy they break down sunlight through their cells in the way that is called photosynthesis. However, to do this, cells must keep their leaves open and faced towards the sunlight. Transpiration is like us sweating: we loose water in the process to cool down. The heat, air pressure, and solar radiation contribute to this. Because plants need energy, they have to open up and allow transpiration to happen. While they loose water, they gain energy. They just soak up more water from the ground. That is another reason why, if it is in a drought, that plants wither and die. They not only don't have enough water to keep themselves "fed" but the air is soaking up water when they gain energy.
853286
According to the lab experiment we performed, carbon dioxide had to be introduced in a solution to make it more acidic and then the plant was submerged and placed under a light source to act as photosynthesis process. This process takes quite a while, however cellular respiration was already taking place. So I'm thinking the answer is no.
351720
The leaves of a plant play an important role in the plant. The leaves capture sunlight and use it along with carbon dioxide to produce food for the plant. Tthe process gives off oxygen. The leaves also store the food for future uses. The leaves have stomata for the escape of the not needed oxygen.
1030327
The plant leaf is covered with  a waterproof waxy layer called the cuticle.  The lower leaf surface contains small holes called stomata.  These stomata allow gases to enter and leave the leaf. The only way water can enter a plant is through it roots.  Water vapor leaves the leaf pulling on the water in the xylem that has been absorbed by the roots.  Water thus goes in one direction from the roots, to the xylem, to the leaf, and then out into the atmosphere.  If you have ever been in a tropical setting it always seem very humid.  This is caused by all the water leaving the plants through their leaves.
713702
It is possible to investigate photosynthesis by carrying out an experiment that demonstrates the production of oxygen. If oxygen is being produced, photosynthesis is taking place. In this experiment, you will use a tube\nthat contains baking soda solution  in order to increase  the rate of photosynthesis.\n\nBaking soda solution supplies carbon dioxide necessary for photosynthesis. When the experimental tube is subjected to light, the leaf disks will produce oxygen gas and float to the surface of the chamber.\n\nNote:\n\nPhotosynthesis is the process by which plants take carbon dioxide from the atmosphere, add water, and use the energy of sunlight to produce sugar.
779484
Transpiration.\n\nYou can write your own 2-3 sentences to answer your homework.\n\nHere's a link from which you can cut and paste.
385744
I'm guessing....\n\nIf I remember my high school biology, guard cells sit around the stomata on the underside of most plant leaves.  Plants open up their stomata to improve gas exchange (they want to take in CO2 and get rid of O2).  They typically only do this at night because they want to limit their water loss through the stomata.  If the chloroplasts in guard cells have a purpose other than photosynthesis, it might be that they are acting as sensors so that the guard cells will be able to tell when it is nighttime (time to open up the stomata!).
1030723
stomata are minute openings on the epidermis of leaves which is surrounded by guard cells.the strucutre of a guard cell :\nguard cells generally have thick and non elastic walls towards the pore and thin and elastic walls on the opposite side.\nthe mechanism of stomatal transpiration depends upon the opening and closing of stomata.stomata opens during day time and close at night.the the opening and closing of stomata dependson to how much water is present in the gaurd cells.when there is more water,the guard cells become turgid and the stomata opens and when the amount of water decreases the guard become flaccid and stomata close. \n\nthere are two theories pertaining to this , steward's starch hydrolysis theory and K + pump theory.\nu can surf the net to find out more on this if u want to .
654038
Yes,CO binds to mitochondrial cytochrome oxidase and impairs oxidative phosphorylation and causes cell damage.So CO adversely affect respiration in plants.Carbon monoxide increases the amount of other greenhouse gases (methane), and eventually oxidises into the greenhouse gas, carbon dioxide. Greenhouse gases are linked to global warming.
600353
Others have answered the question with drinking salt water.  The stomatas are pores in leaves that regulate the absorption & evaporation of water, along with gas exchange.\n\nDepending on the evnironmental condition, stomata will open up if there's lots of moisture in envoronment to absrob extra water.  If environment is dry, stomata will close to conserve its water content by reduing the evaporation.\n\nEffects of salt water on stomata, I'm not very sure but it's sure to give a lot of stress on the plant.  Stomata will open up a lot more in wet condition, and close longer & tightly during dry condition.\n\nSo main thing is, that if you give plants salt water, it's like giving very little water.