of chlorophyll and the process of photosynthesis
These chlorophyll fluorometers cover a wide range of applications in photosynthesis research programs. Please click on the buttons on the left for information regarding the different techniques of measuring chlorophyll fluorescence and associated information on how to apply the technique for photosynthesis research.
Is chlorophyll necessary for photosynthesis? | Yahoo …
Chlorophyll biosynthesis always ensures the appropriate supply of the pigment, and chlorophyll catabolism prevents the accumulation of free chlorophyll during breakdown of photosynthetic complexes.
(), CHMgNO, and (), CHMgNO: it is essential to the photosynthetic process and is used as a coloring agent, in topical medicines, etc.Origin of chlorophyllFrench chlorophylle: see chloro- and -phyll
Chlorophyll Fluorescence and Photosynthesis: The Basics
Non-green leaves without chlorophyl: There are leaves that don't appear green because they have no chlorophyl, and so do not conduct photosynthesis. (See, for instance, parasitic plants like the Oronbanche linked by Cactuswoman or this Monotropa)
Do plants with non-green leaves have chlorophyll and photosynthesis
occurs in structures called chloroplasts. A chloroplast is a type of organelle known as a plastid. Plastids assist in storing and harvesting needed substances for energy production. A chloroplast contains a green pigment called chlorophyll, which absorbs light energy for photosynthesis. Hence, the name chloroplast indicates that these structures are chlorophyll-containing plastids. Like , chloroplasts have their own , are responsible for energy production, and reproduce independently from the rest of the cell through a division process similar to bacterial . Chloroplasts are also responsible for producing and components needed for chloroplast membrane production. Chloroplasts can also be found in other such as .
The Process of Photosynthesis in Plants: An Overview
Current understanding is that the earliest photosynthetic organisms were aquatic bacteria, some of which are still around today. One of these, halobacterium halobium, grows in extremely salty water. It makes use of the bacteriorhodopsin pigment. The chlorophyll system developed to use the available light, as if it developed in strata below the purple bacteria and had to use what it could get.
KS3 biology Quiz on "PLANTS and PHOTOSYNTHESIS" …
Plant chloroplasts are commonly found in guard located in plant . Guard cells surround tiny pores called , opening and closing them to allow for gas exchange required for photosynthesis. Chloroplasts and other plastids develop from cells called proplastids. Proplastids are immature, undifferentiated cells that develop into different types of plastids. A proplastid that develops into a chloroplast, only does so in the presence of light. Chloroplasts contain several different structures, each having specialized functions. Chloroplast structures include:
BBC - GCSE Bitesize: Functions of the leaf
In , the sun's solar energy is converted to chemical energy. The chemical energy is stored in the form of glucose (sugar). Carbon dioxide, water, and sunlight are used to produce glucose, oxygen, and water. Photosynthesis occurs in two stages. These stages are known as the light reaction stage and the dark reaction stage. The light reaction stage takes place in the presence of light and occurs within the chloroplast grana. The primary pigment used to convert light energy into chemical energy is chlorophyll a. Other pigments involved in light absorption include chlorophyll b, xanthophyll, and carotene. In the light reaction stage, sunlight is converted to chemical energy in the form of ATP (free energy containing molecule) and NADPH (high energy electron carrying molecule). Both ATP and NADPH are used in the dark reaction stage to produce sugar. The dark reaction stage is also known as the carbon fixation stage or the Calvin cycle. Dark reactions occur in the stroma. The stroma contains enzymes which facilitate a series of reactions that use ATP, NADPH, and carbon dioxide to produce sugar. The sugar can be stored in the form of starch, used during , or used in the production of cellulose.