Chlorophyll fluorescence and photosynthesis: the basics

Plants cells contain a number of structures that are involved in the process of photosynthesis:

" Chlorophyll fluorescence and photosynthesis: the basics "

Over the next several years, your child will become immersed in the process of science; thinking the way scientists think and doing experiments the way scientists would. Every experiment your child performs will lead to the discovery of a science concept. Kids find it’s easy to learn science when they’re working with real science equipment and investigating interesting questions.

Diagram of a plant cell involved in production of glucose from photosynthesis

Integrated Chlorophyll Fluorescence & Photosynthesis - Gas Exchange

New CO monitoring system for green houses, growth chambers and soil respiration monitoring. It can monitor up to 7 different inputs at once, and has 2 configurable outputs. Air pumps and switching capability included.

Chloroplasts - containing chlorophyll and enzymes needed for reactions in photosynthesis.

Very affordable plant stress measurement- The Plant Stress Kit - By eliminating the fiber optic, and using LED technology, both the light adapted Y(II) meter and the dark adapted F/F meter provide great plant stress measuring capability to more scientists for a better price. The Y(II) meter includes an option for F' correction according to Loriauz 2013. The meters are also sold separately.

“The LabLearner makes me feel smart. I love to get into my group and discuss the lab.”

CCM-200 chlorophyll content meter

The leader in this discovery process is your child’s teacher, a LabLearner Teacher. LabLearner Teachers receive special on-site, comprehensive teacher professional development to learn how to use scientific equipment and facilitate the inquiry process for students. Your child’s teacher may have even received graduate-level university credits for online LabLearner courses or for participating in LabLearner Summer Institutes.

CCM-300 chlorophyll content meter

Suzuki Y, Amano T and Shioi Y (2006) Characterization and cloning of the chlorophyll‐degrading enzyme pheophorbidase from cotyledons of radish. Plant Physiology 140: 716–725.

iFL - Chlorophyll fluorescence and Gas Exchange

Chlorophyll-a is tested in lakes to determine how much algae is in the lake. Algae is important in lakes because it adds oxygen to the water as a by-product of photosynthesis. On the other hand, if there is too much algae in a lake it can produce a foul odor and be unpleasant for swimming. Chlorophyll-a concentration can tell you a lot about the lake’s water quality and trophic state as shown below (Figure 1). We can compare annual mean chlorophyll-a values to see if the amount of algae in the lake per year is increasing, decreasing, or staying the same.

Chlorophyll Definition and Role in Photosynthesis - …

Pružinska A, Tanner G, Aubry S et al. (2005) Chlorophyll breakdown in senescent Arabidopsis leaves. Characterization of chlorophyll catabolites and of chlorophyll catabolic enzymes involved in the degreening reaction. Plant Physiology 139: 52–63.

Chlorophyll and chloroplasts | ASU - Ask A Biologist

The amount of algal growth in a lake depends on many factors, including , water temperature, predation by zooplankton, and the availability of nutrients, (especially and nitrogen). There are natural seasonal variations in algal concentrations. In the spring, the water is transparent, and there are many nutrients available due to the ; however, the water is not very warm yet, which limits algal growth. As the water warms throughout the summer, algae grow to higher concentrations. When there is a heavy rain more nutrients get washed into the lake, fueling an algal bloom. As the algal concentration increases the decreases. This means that less light can penetrate through the water so the algae are only at the very top of the lake where there is enough light for photosynthesis. In late summer, the algal community is dominated by cyanobacteria (blue-green algae). Cyanobacteria can become very thick and have a foul odor as it decays.