why are some plants intolerant of sunlight (prefer shade?)?
84822
Every plant is biologically programmed to thrive and flourish under certain lighting  conditions...  some need lots of light, and some don't.
517954
chloroplast contains pigments for capturing solar energy for photosynthesis.plant cells absorb light of visible spectrum that have wavelength between 400 to 700 nm. and uv radiation doesnt fall between it so plant cannot absorb this part of ligt rays. if a plant will be subjected only to uv rays then the plant will die.
324731
plants require visible spectrum for photosynthesis. the light you can see is the light they can use. green is least effective. red and blue are most.
562523
heliophobe?\n\n(Plants probably don't belong to this catagory because they need sunlight for food.)
237138
cactus r xerophytic plants which have the ability to retain water in it.so cactus retains more water and there leaves get modified into spines due to which there is less loss of water from the plant in the atmosphere due to which they can withstand on the extreme condition of water that is where less water is present,and as in desert there is less water so can withstand over there succesfully than to those plants whose leaves are broad and have no cuticle layer.
534704
the condensation of water in the air as the air cools and consenses packs closely together and it does not allow the direct sunlight to shine through - however on days when it is overcast you are still likley to get burnt - \npeople tend to skip the sunblock when overcast because there is not direct san light/rays - but the sunlight and rays are still fintering thru - and you tend to get burn worse on overcast days then sunny ones!!!
1013960
because light from the sun's rays carry in them vitamin d which every living organism needs. And plants use light for their photosysthesis.
751850
Those disliking the sun or liking both, such as:\nYew Bushes as Foundation Plants and in Hedges\nhttp://landscaping.about.com/od/evergreenshrubsbushes1/a/japanese_yews.htm\n\nOr:\nif you have a lot of shade. As mentioned on Page 2, yews will tolerate some shade, as will hemlock (Tsuga), andromeda (Pieris japonica), azaleas and rhododendrons and viburnums.\nhttp://landscaping.about.com/cs/hedgesfences/a/privacy_fences_3.htm\n\nOr:\nBird friendly coffee  \n... coffee plantations, coffee bushes are grown in the shade, under a forest canopy. ... bushes also need to be replaced more often than bushes grown in the shade, as ...www.umd.umich.edu/dept/rouge_river/coffee.html\n\nOr:\nStarting a Shade Garden \nhttp://www.maskedflowerimages.com/articles/shade_plants_article.html
514364
sunlight doesn't push water up a plant. How would sunlight push water up a plant?
92526
Adaptation, which means that they develop special roots and leaves that make them more prone to survive. Such as some plants have waxy leaves in order to withstand high temepratures and various other conditions. In deserts, some plants have very long roots, which affects if there population is random or very populated.
936430
An onion skin cell does not have the same structure as a normal plant cell... the skin cells are lacking chrolophyll.  This is because the onion bulb grows underground and does not need the sunlight to photosynthesize... the leaves do so.
168209
No. In fact not every one of them. The cells which make up the roots of the plants do not because they are not designed for the process of photosynthesis.
351777
Sunlight helps to to metabolize vitamin D, warms the planet to a pleasant temperature conducive to life, and provides a direct energy source for solar power, and is a great source of energy for chloroplasts, which happen to be how plants excrete oxygen that we breathe.  Basically, we would be dead without the sun.\n\nSunlight also has ultraviolet light and various other radiations, most of which are currently blocked by our ozone layer.  Sticking with ultraviolet light, sunlight can damage the skin, leading to skin cancer.  Too much exposure can result in dehydration and death.  Increased amounts of ultraviolet light may also interrupt the chloroplast processes in plants, such that too much will cause plants to die instead of producing oxygen.
696647
Because they need the food the sunlight produces..."Plants" Also sunlight gives us a good dose of Vitiamin D
607027
Yeah plants can grow without sun. those plants are called are non-photosynthetic plants. as they do not have photosynthetic pigments. They are also termed as chemosynthetic plants as they prepare their food by chemicals and not by sun light. As far as water is concrned then no plant on earth gorws without it. Water is essential for every livig animal. Its basic requirement for solutes and solvents to get transported from one cell to another. without it plants will DIe. try growing plants without water, they will shrink and eventually die.
75824
humans are naturally light-loving creatures. I forget the scientific name, but it's true. you might notice the same attitude if it is cloudy or raining. I forget what the disorder is called, but my mom has the same thing. some of us are more sensetive to the seasons than others in the fact that we can react more dramatically when the sun goes down or is not present. I would recommend turning all the lights on and curling up w/ a good book so you can forget that it is dark outside. put a poster or picture in your room that is of a sunny beach filled with palm trees. Brighten up your surroundings. Today it is cloudy and I was feeling kinda low, so I went and tanned for a few minutes and I feel ten times better. Its all about changing your surroundings to compensate for your grumpies. good luck!
318118
Probly Early morning or late after noon. That way there is sunlight (plants need it you know) and its not extreamly hot or cold.