Well guys, if you still haven't got a clue of what is so fantastic about photosynthesis and their relationship with respiration, take a look at this:
There are also a lot of weird plants in the world..do they photosynthesize too? If so, for what? How? the normal way? What is the normal way?
i think they also can photosynthesize. because photosynthesisis a chenical reaction cause by the chloropast. As we know that chloropast is just a container which contain chlorophyll a and b which allow the plant to photosynthesize and also is the cause of the plant appearing green. However, in few plants in the world, their chloropast also contain another type od thing which also allow them to do photosynthesis call "Carotenoids". And its colour is so strong that it can cover the colour of chlorophyll which is green. That's why there are non green plants occur in the world which can photosynthesize!!!:)
ReplyDeleteOur Opinion: The plants are able to photosynthesise.
ReplyDeleteEvidence:The coloured leaves do contain chlorophyll. However, they too contain pigments such as carotenoids and anthocyanins. In photosynthetic organisms, specifically flora, carotenoids play a vital role in the photosynthetic reaction centre. They either participate in the energy-transfer process, or protect the reaction center from auto-oxidation. That's the reason these pigments are present in plants. Carotinoids absorb the blue-green and blue light from the sunlight that contacts the leaf. Light reflected by carotinoid pigments appears yellow or yellow-orange to our eyes. Hence, that is why leaves of such plant appear that way. The pigment may be present in large quantity in the leaves, therefore it mask the green light reflected from the chlorophyll.
http://extension.oregonstate.edu/news/story.php?S_No=409&storyType=garden&cmd=pf
From our pespective : these plants leaves are coloured can photosynthesize.Otherwise they will not be able to grow at all
ReplyDeleteThe purpose of Chlorophyll helps a plant to convert light energy into chemical energy in a process called photosynthesis. This reaction produces glucose that the plant uses to grow. Excess is then stored, which is why we can get energy from plants.They may not look green, but there’s actually chlorophyll in the leaves still. Otherwise, they will not be able to make food and will die. The colour you see actually comes from the green colour of chlorophyll and deep red or yellow colours from pigments of various chemicals like anthocyanins, carotenes and xanthophyll.
In my opinion Some plants do not photosynthesise.
ReplyDeleteSome plants do not ocntain chlorophyll, the green pigment which is contained in the organelle chloroplast.Photosynthesis is a chemical reaction whereby sunlight is needed,as welll as chlorophyll is needed to produce glucose.Generally, plants that have no green pigmentation do not photosynthesise,so it depends on the type of plant that we looking at since there is a wide variety.
Here have some examples, Monotropa Uniflora(Indian pipe) and Sarcodes Sanguinea(Snow plant)are Nonphotosynthesise plants.
I think that the plants can photosynthesize even they are not in green colour. Most plants have chlorophyll and are in green colour. These plants are different as they have other types of pigment which are, carotenes, xanthophylls,phycocyanin,phycoerythrin, and fucoxanthin. These pigments are in various colours which make the plant look colourful even they aren't green.Even all the cells in the green parts of a plant have chloroplasts, most of the energy is in the leaves. The cells in the interior tissues of a leaf, called the mesophyll, can contain between 450,000 and 800,000 chloroplasts for every square millimeter of leaf. The surface of the leaf is coated with a water-resistant waxy cuticle that protects the leaf from alot of evaporation of water and decreases the absorption of ultraviolet or blue light to reduce heating. The transparent layer allows light to pass through to the mesophyll cells where most of the photosynthesis takes place.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteOur Opinion : There are various different types of chlorophyll,all of which tend to absorb efficiently in the red and blueish parts of the spectrum, but not the green , hence , they appear green. However , there are also other pigments such as xanthophyll (yellow) and carotene (orange).
ReplyDeleteSome plants also contain a "sunscreen" called anthocyanin. Anthocyanin come in a variety of colors (red, purple, or blue according to pH). Giving some plants their intense colors. These are present as they can protect the plants against the harmful effects of UV rays.
My opinion:In a green plant, chlorophyll is responsible for trapping sunlight for photosynthesis and the plants look green as green light is transmitted or reflected from the leaves. However coloured leaves have chlorophyll too. It is just that they are masked by other colour pigments.Carotinoids absorb the blue-green and blue light from the sunlight that contacts the leaf. A third class of pigments found in leaves is the anthocyanins. Anthocyanins absorb blue, blue-green and green light.Purple leaves usually have high anthocyanin concentrations relative to chlorophyll. Since the anthocyanin absorbs green light (chlorophyll reflects green light), and reflects reds and purples (chlorophyll absorbs these light colors), the leaves “appear” purple to our eyes. The chlorophyll is still there, but it is masked by the higher concentration of anthocyanins.Chlorophyll absorbs the red and blue light from the sunlight that contacts the leaf. Therefore, the light reflected from or transmitted through the leaf is deficient in red and blue light, so it appears green to our eyes. “Green” is the type of light used the least by chlorophyll. When a leaf has a high concentration of chlorophyll relative to other pigments, the leaf appears green.
ReplyDeleteOur opinion:When there is chlorophyll there will be photosythesis. Because chlorophyll is responsible for trapping sunlight for photosythesis. All plant leaves have this green pigment, and almost no plant can live without it, as it is what captures light from the sun and stores its energy in combinations of carbon dioxide and water. Even if the plant is not green it does not mean that it do not have chorophyll it is just that they are coverd by other colour pigments.Plant leaves have three primary classes of pigments: chlorophyll, carotinoids and anthocyanins.Chlorophyll absorbs the red and blue light from the sunlight that contacts the leaf. Therefore, the light reflected from or transmitted through the leaf is deficient in red and blue light, so it appears green to our eyes. "Green" is the type of light used the least by chlorophyll. When a leaf has a high concentration of chlorophyll relative to other pigments, the leaf appears green.Carotinoids absorb the blue-green and blue light from the sunlight that contacts the leaf. Light reflected by carotinoid pigments appears yellow or yellow-orange to our eyes. Generally, carotinoids assist chlorophylls in the process of photosynthesis. Carotinoid pigments are involved in forming the color of carrots. When a leaf has a high concentration of carotinoids relative to other pigments, the leaf usually appears yellow.A third class of pigments found in leaves is the anthocyanins. Anthocyanins absorb blue, blue-green and green light. When leaves contain high concentrations of anthocyanins relative to other pigments, the leaves appear red or purple to our eyes.
ReplyDeletehttp://rockinscience2e3.blogspot.com
ReplyDeleteWenqi, Jia Jun, Vinny and Lucas ^^
(Darren Sim 2e3) My Opinion: When there is chlorophyll, there will definitely be photosynthesis as the purpose of the chlorophyll is to make food also known as glucose it uses photosynthesis to make food
ReplyDeleteThe normal way is when the pigment is green and photosynthesis takes place due to the chemical reaction from the sunlight and the chlorophyll
Even though the chlorophyll is not green, it is still there!
Thats why they still are able to make food and grow
This comment has been removed by the author.
ReplyDeletehttp://hopelessscience2e3.blogspot.com/
ReplyDeleteavinda,haritz,yiming and ...
http://2e3hopeless.blogspot.com/
ReplyDeletethis is another one but will me merging to one blog soon....
avinda,haritz,yiming and ...
posted by yiming
This comment has been removed by the author.
ReplyDeleteThere are numbers of other pigments that also is present in some plants.Some of these, such as Arytenoids and Xanthophylls.They don't replace the chlorophyll,but they can help it do its job more better. These other pigments absorb light in different areas of the light spectrum than chlorophyll does,thus widening the range over which plants can extract energy from light. They don't directly do the same things that chlorophyll can do, but they can give the energy they extract from light to chlorophyll molecules, helping them do their work. Usually, these accessory pigments are yellow, orange or red and this color gets masked by the green of the chlorophyll, but some you can see the leaves in different colour.One very important function of some of these secondary pigments is to act as
ReplyDeletea form of protection for chlorophyll molecules against the free radicals which can be formed within the cells under strong light. In cases where this happens, the red or violet color of the secondary pigment can visually overpower the green color of the chlorophyll and the plant will appear red or purple. A lot of the plants we grow in aquariums have colored leaves because they were breed that way or the color is due to a (non-harmful) virus.There is a plant virus which can infect some species of plants and cause the leaves to lose the ability to produce chlorophyll in certain areas. This is seen most
often in Hygrophila.
Ocean green machine:
ReplyDeleteWE learn lots of things from the video. We learn that the ocean is full of phytoplankton. Phytoplankton is the bottom of the marine food web. Phytoplankton produce half of the oxygen produced on Earth. phytoplankton stores some carbon-containing chemical compound for an indefinite period. Phytoplankton need nutrients to grow. It got its nutrients from cold water that carry nutrients from the ocean's lower depths to the surface of the ocean. Researchers study the phytoplankton from space. More phytoplankton are dying each year so more carbon dioxide are not absorbed by phytoplankton so the ocean becomes more acidic which is a danger to sea creatures. Less food is produced.
My opinion :Chlorophyll which is in water can photosynthesize
ReplyDeleteAfter removing the cholophyll from a plant, it can still photosynthesize. so if you put the chlorophyll in a beaker of water, you can find starch in the water as the chlorophyll photosynthesize.
posted by: jeryl
My opinion: Those weird plants that are different in colour are also able to photosynthesis like other normal green plants.
ReplyDeleteEvident: Photosynthesis is a chemical reaction caused by chloroplast. Chloroplast is a "container" that contain chlorophyll, a small green pigment that abosorb sunlight. This small green pigment which is also known as chlorophyll, make the plant look green and it is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. But, there are some plants in the world that their chloroplast contain another type of thing called "Carotenoids". Carotenoids are usually red, orange, or yellow pigments, and include the familiar compound carotene, which gives carrots their color. These compounds are composed of two small six-carbon rings connected by a "chain" of carbon atoms. As a result, they do not dissolve in water, and must be attached to membranes within the cell. Carotenoids cannot transfer sunlight energy directly to the photosynthetic pathway, but must pass their absorbed energy to chlorophyll. For this reason, they are called accessory pigments. One very visible accessory pigment is fucoxanthin the brown pigment which colors kelps and other brown algae as well as the diatoms. This is the reason why other type of weird plants are able to photosynthesis even if they are not green in colour ((:
This comment has been removed by the author.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteOur point of view: Yes, they do photosynthesize too. As long as the plant is able to have carbon dioxide, water and chlorophyll to trap sunlight, it is most like able to produce food for itself. We think that it is also due to photosynthesis thus allowing the above plant to have its green colour. So, the answer may vary for different species of plant. :)
ReplyDeleteThis link is to support our p.o.v :
http://ellerbruch.nmu.edu/classes/cs255w03/cs255students/teabbott/p4/page2.html
By --Existence-- 2E1 :D
From my perspective: Weird or strange plants are still able to photosynthesis as long as they have chlorophyll, carotinoids and athocyanins.
ReplyDeleteI agree with most of the others (Existence, 2e1 science TLLM, iNoob, jun wei and moos)
Evidence: Leaves of plant contains three primary classes of pigments; chlorophyll, carotinoids and anthocyanins. Chlorophyll absorbs red and blue light from the sunlight that contacts the leaf. Therefore, the light reflected from or transmitted through the leaf is deficient in red and blue light, so it appears green to our eyes.Carotinoids absorb the blue-green and blue light from the sunlight that contacts the leaf. Light reflected by carotinoid pigments appears yellow or yellow-orange to our eyes. Generally, carotinoids assist chlorophylls in the process of photosynthesis.
Therefore, plants with leaf colour other than green perform photosynthesis just like green-leafed plants. The chlorophyll needed for photosynthesis is masked among the colorful pigmentation.