plants

what makes a plant green?

Answers
The word that you are looking for is Chlorophyll. Its the green pigment found inside of plants.
jon.ellis
24 June 2011
Its responsible for photosynthesis. Sunshine excites electrons inside inside chlorophyll to a higher energy state, and they pass the energy on through a chain of chlorophyll to a make glucose, which is then used as energy for a plant.
jon.ellis
24 June 2011
It's green because it absorbs blue and red light, and reflects green
jon.ellis
24 June 2011
Is chlorophyll an acid ?
star
24 June 2011
Is it an acid?
star
24 June 2011
Chlorophyll contains folic acid and pantothenic acid
jon.ellis
24 June 2011
So it is a type of acid:)
star
24 June 2011
am i alowed to ask you another question in biology?
star
24 June 2011
You can ask as many questions as you like. You need to start a new question though. Who answers depends on who is available at the time though.
jon.ellis
24 June 2011
ok jon, thankyou for your help :)
star
24 June 2011
If you want private one-to-one tutoring, you can also get this through the website, but a charge is made. You can ask as many questions as you like to the community
jon.ellis
24 June 2011
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phytoplankton biology project help me pleas

Phytoplankton are microscopic autotrophs that are the foundation of many aquatic food chains. The amount of photosynthesis carried out annually by ocean phytoplankton alone is of a similar magnitude to that of all terrestrial plants combined, making them an important subject for ecological research. Ocean phytoplankton photosynthesis can be studied using a wide range of techniques, from satellite imaging to measure whole oceans to collecting small samples and analysing their behaviour in the laboratory.

(a)In recent years phytoplankton have been investigated as a potential source of energy for humans. Researchers have therefore been interested in whether these organisms could be ‘farmed’ to provide food or fuel. In terms of biomass, Gross Primary Production (GPP) in phytoplankton living in a layer just below the surface of a typical ocean area is 4102 g m−2 yr−1 If you . assume the energy value of phytoplankton is 6 kJ g−1, calculate the GPP in terms of kJ m−2 yr−1 .Show your working clearly .

(b) If a human needs to eat about 10 000 kJ per day, estimate (to the nearest gram) the mass of phytoplankton that would be required to meet their daily energy requirements. Based on this value, approximately what proportion of her own body weight in phytoplankton would a 60 kg woman need to eat over the course of a year, if this were her only source of energy? Show your working clearly.

(c) Farming phytoplankton to harness solar energy for human food or fuel would presumably require cultivating large numbers of these organisms in a carefully designed artificial environment. Suggest two features that could be incorporated into the design of a phytoplankton ‘farm’ to optimise the Net Primary Production (NPP). Briefly describe why each design feature would be useful. (One sentence for each)