3. PHOTOSYNTHESISNOTEPACKET: PAGE 2MR. TAYLOR, 2013 WHAT ABOUT PLANTS? Since we are heterotrophs and must get our food from other plants and animals, how do plants get their food? Do plants eat like we do? If you answered no, then you are right! Plants do not eat at all. In fact, plants use the ________ from the _____ to obtain their food. Because of this, plants are called ____________. Another name for autotroph is called ___________. Autotrophs: “LET’S KEEP IT SIMPLE!” Since plants make their own food, there are [4] things that plants need to grow:

4. “Plants also need space to grow!”

5. PHOTOSYNTHESISNOTEPACKET: PAGE 1MR. TAYLOR, 2013 Helmont’s Willow Experiment Dry ___________ of soil in a pot Plant a willow shoot (piece of a willow tree) that weighted a total of __________ in the soil. Water the willow every day for ____________. After 5 years, he weighed the tree and soil (separately) Data and Results His data and results can be seen to the right Analysis and Conclusions How much weight did the tree gain? ________ What can you conclude about the relationship between soil mass and plant mass?

6. 1. How much weight did the tree gain? ________ 2. What can you conclude about the relationship between soil mass and plant mass? 3. Did the plant mass come from the soil? ______ 4. How do you know? Following Helmont’s experiment, there have been many others by a variety of curious people from different professions. Such professions included: 1. ____________________ 2. ____________________ 3. ____________________ Today, what is known as photosynthesis is very different from what people once thought was true. PHOTOSYNTHESISNOTEPACKET: PAGE 1MR. TAYLOR, 2013

7. Photosynthesis “Solar Energy!” In simple terms, photosynthesis is a process used by plants to convert ____________ energy into ____________ energy that is used as ________ to fuel the organisms’ activities. This light energy is produced by the ________. Since plants are _____________, they are able to make their own _____________________. These compounds are rich in __________. Specifically, plants make simple sugars called _____________. The chemical formula for glucose is: C H 0

8. PHOTOSYNTHESISMR. TAYLOR, 2013

9. PHOTOSYNTHESIS Using the ______ in the air, plants get the ____________ necessary for these glucose molecules. As supported by experiments in the 1700’s, plants release ___________, 0 2 as a waste product. This waste product allows animals, including humans, to stay alive. So where does the oxygen come from? Putting it together “The basics!” Plants must have _______ to convert ________ to ____________ and produce ____________. Scientists discovered that photosynthesis requires a green pigment where this chemical reaction takes place. This pigment is called ____________

10. PHOTOSYNTHESISNOTEPACKET: PAGE 1MR. TAYLOR, 2013

11. As a review, the players associated with photosynthesis are as follows: _______________________

12. Light energy + water + carbon dioxide  glucose + oxygen The energy for life comes primarily from the _____. Photosynthesis provides a vital connection between the Sun and the ___________ needs of living systems. Plants are not the only ones that make food from the sun. The following carryout photosynthesis: ______________________

13. Photosynthetic Factories: “Plant Leaves!” Plants have structures that maximize exposure to light through the __________________________. These structures are called _____________. Leaves serve to function as a control system, controlling the amount of _____________ to the _____. This also allows for the movement of ______ and ______ into and out of each leaf. If you look at chloroplasts, a typical leaf contains approximately _____ in each cell.