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Photosynthesis Children's Book
20
Sunny and the Rabbit
By Tia Bougeon P.1
A little rabbit hopped out from it's den and flopped out underneath the bright sun. "It's so nice out today, great for sunbathing!"
"Hey!" A voice shouted. "Don't forget we sunflowers make our food from sunlight! I'm Sunny the Sunflower by the way!"
"Nice to meet you Sunny! Isn't the process called photosynthesis?" The rabbit asked. "Yes! The process that all plants go through to turn sunlight into energy is called photosynthesis. I'll tell you all about it!" Cheered Sunny.
Plan
"Plants use sunlight, water, and carbon dioxide to make their food. There even is a special chemical equation for this!" Explained Sunny.
The equation is:
"Photosynthesis consists of two stages: Light-dependent reaction, which takes place in the thylakoids, and the light-independent reaction, also known as the Calvin Cycle which takes place in the stroma!"
"As the name implies, a light-dependent reaction requires sunlight. It begins inside of the chloroplast in the thylakoid discs. Here, energy from light is captured and water is split to create ATP and NADPH which are energy molecules that will be used in the next reaction. The light reaction also creates oxygen as a by-product. The ATP and NADPH are used in the Calvin Cycle which takes carbon dioxide and converts it into glucose. The NADP+ and ADP produced can be recharged almost like a battery!"
"The membrane of the thylakoid discs have proteins embedded which carry out the light reaction. When light strikes the photosystems, two electrons are then transferred from one molecule to the next by the electron transport chain, which is a series of proteins. An enzyme then splits a water molecule, releasing oxygen, which diffuses out of the plant. "
"The Calvin Cycle occurs in the stroma and does not require sunlight to occur. It can occur during the daytime but does not use light. Instead it uses 6 carbon dioxide molecules which are then converted into glucose. Then the plant can use the glucose for energy or to make cellulose. Neat, huh?" Sunny smiled, almost out of breath from all the explaining.
The rabbit nodded. "Because oxygen is released by plants, that means it's useful to creatures that breathe air right? That's so cool! I never knew plants were so helpful." The rabbit exclaimed.
"Well now you do know!" Sunny said as she smiled to her new rabbit friend. "Come visit me again some time so I can teach you more!"
"Thank you for teaching me all about photosynthesis Sunny! I can't wait to tell all my friends back in the burrows all about it!" The rabbit smiled gleefully at Sunny. "I'll see you again soon!" Said the rabbit, who then turned and dashed through the meadow back to it's friends.
Sunny watched the rabbit run off into the distance until she could see them no more. She then turned up straight to the sun to continue to harvest light for her meal. "Oh, what a beautiful day!"