Which part of the plant mainly absorbs carbon dioxide during photosynthesis? A. Roots B. Stems C. Leaves D. Flowers 相关知识点: 试题来源: 解析 C。解析:在植物进行光合作用时,主要是叶子吸收二氧化碳。根(选项A)主要是吸收水分和矿物质等;茎(选项B)主要起支撑和运输作用;花朵(选项D)主要与繁殖等...
Two photosystems, or light-harvesting systems, play a crucial role in capturing light, which is integral to the light reactions of photosynthesis. Photosystem I (PS I) has a reaction center chlorophyll (P700) and absorbs light wavelengths up to 700 nm. The second light-harvesting system, known...
The typical characteristics that define the plant cell include cellulose, hemicellulose and pectin, plastids which play a major role in photosynthesis and storage of starch, large vacuoles responsible for regulating the cell turgor pressure. They also have a very unique cell division process whereby th...
Plant - Photosynthesis, Chloroplasts, Light: Photosynthesis is the autotrophic mode of nutrition for plants. It occurs in chloroplasts and consists of light and dark reactions. Chlorophylls a and b and carotenoids constitute the principal light-absorbing
•ChloroplastcanbeinSOMEplantscellsonly.Forexample,palisademesophyllcellsandguardcells.•Itcontainsagreenpigmentcalledchlorophyll,whichabsorbslightenergyforphotosynthesis.EndoplasmicReticulum(ER)•TherearetwotypesofER:roughERandsmoothER.•Itprovidesalargesurfaceareaforthesynthesisoflipidsandproteins.•Itisanetwork...
By and large the plant system functions as a neuroid system, as signals are passed from one cell to its immediate neighbours and the signals in the fly trap, for example, are local. Sponges are animals that lack a nervous system, but these too have a neuroid system. However, in some ...
Plants have special light-absorbing pigments calledchlorophyll. Chlorophyll pigments can be found inside a plant cell's chloroplasts, which are small organelles that store the sun's energy. Chlorophyll is also what makes the plant green, because it absorbs energy from blue and red light wa...
phycobilins and carotenoids are present bacteriochlorophyll absorbs light in a longer wavelength ~800nm chlorophyll absorbs light towards blue and orange light ~400 to 750nm photosynthetic bacteria use only one type of photosystem and have a reaction centre at p870 or p960 photosystem i or ps i ...
Through photosynthesis (光合作用),the alga absorbs the sun's energy to make food for the fungus,which is a place for the alga to live.However,the alga cannot leave the fungus. Around the world,scientists have found tens of thousands of types of lichens.Many may not even have been discover...
stroma is the fluid within the chloroplast that comprises a circular DNA. Each chloroplast contains a green coloured pigment called chlorophyll required for the process of photosynthesis. The chlorophyll absorbs light energy from the sun and uses it to transform carbon dioxide and water into glucose....