photosynthesis

anonymous asked:

do you think a UV light you get for reptiles would work as a light source for my succulents during the winter?

Hi,

In short, no. Most of the light being put out by such lights won’t be utilised by the plants. Most plants are green because they absorb predominantly red and blue light, while they reflect green light. Plants don’t utilise UV light for photosynthesis, so it’s essentially wasted light. While some UV light is beneficial for plants, they don’t really need much.

Instead, it’s better to use a cheap, cool white (6500K colour temperature is best) fluorescent light. The light fitting will probably be the same, so it’s just a matter of switching out the bulb. Or use an equivalent of other kinds of lights. I wouldn’t bother investing in anything marketed as a grow light, as they tend to be expensive for what they are. About 10-20W of fluorescent light per square foot is suitable provided too much light isn’t lost (good reflective material is helpful, such as white printer paper), but more is better. I’m not sure what wattage of LED light or others would be best. LED lights are generally more efficient, so you’d need a lower wattage of them per sqft. 

Happy growing!

You can charge your phone with a plant. The Bioo Lite planter harnesses the energy plants create during photosynthesis to charge just about any device, day or night. Source Source 2

The Indiegogo campaign tripled its goal. Ships in September.

They hope to use the initial run of planters to troubleshoot for bigger, public projects.

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It’s unclear how they fund it, but the sea slug community appears to be employing some serious PR power lately. It’s hard getting word out that you’re incredibly beautiful and/or outrageously cute when you’re tiny and live on the ocean floor. Just last week we shared photos of Jorunna parva, sea slugs that look like fluffy bunnies. Today let’s delight in Costasiella kuroshimae or ‘Leaf Sheep,’ sea slugs that resemble adorable sheep covered in coats of leafy green wool. It’s like English animator Nick Park was working on concept art for an undersea episode of Shaun the Sheep:

Leaf Sheep are found in the waters off Japan, Indonesia, and the Philippines. They grow to a mere 5 millimeters in length feed on algae, incorporating the chloroplasts into their awesome green leaflike coats using a process called kleptoplasty. This enables them to perform photosynthesis, so they aren’t just miniature aquatic leaf sheep, they’re solar-powered to boot!

Click here to learn more about these awesome underwater creatures.

Photos by Jim Lynn, Randi Ang, Johnny Chiu, and Lynn Wu respectively.

[via Bored Panda]

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Photosynthesis & Cellular Respiration Summary Sheets

hallo there! I got TON of messages asking if i could post the complete sets of my bio study sheets so here they are! First two are photosynthesis, and the last three are cellular respiration. If you look in the top right hand corner, I put the step number as well, eg Ps 1, Rs 3 :)

Okay so my teacher gave us a chart with the four sections that are on all of the study sheets: location, goals, process, and important bits. Later on in the quarter, she posted the answer key for them and I decided to make study sheets for each process. So i copied those four sections straight from the answer key. In the lower section of the study sheets, I wrote myself a little summary or explanation of certain part of the process or the mechanism as a whole. I basically explain it in my own words so it’s clearer to me on how the whole thing comes together.

and yup! thats about it! please feel free to ask me questions about my summary sheets ^_^