PHOTOSYNTHESIS

Worksheet by KARRY SANTIAGO
PHOTOSYNTHESIS worksheet preview image
Subjects
Science
Grades
7
Language
ENG
Assignments
122 classrooms used this worksheet

Master photosynthesis! Label diagrams & learn the science behind plant food production.

Label the Diagram Click the blinking dots to label the diagram.Use the following word bank: Oxygen , Carbon Dioxide , Light , Sugar , and Water . Light Carbon Dioxide Oxygen Sugar Water Chemical Equation for Photosynthesis What are the two things used by plants, bacteria and protists for photosynthesis? Oxygen Carbon Dioxide Water Glucose (a sugar) What are the two things made by plants, bacteria and protists by photosynthesis? Oxygen Carbon Dioxide Water Glucose (a sugar) Please choose all correct answers.Which of the following may go through the process of photosynthesis? Plants Bacteria Protists Animals Fungi Fill in the blanks. In photosynthesis, light energy from the sun is converted into chemical energy. Photosynthesis occurs in the chloroplast organelle. Pigments are structures that absorb wavelengths of color. Whichever wavelengths are not absorbed are reflected back. Receptors in our eyes absorb these reflected wavelengths and our brain interprets them as the objects color! What are the reactions that occur in the chloroplast? light dependent reaction light independent reaction Both A and B Photosynthesis To mark a word click its first letter then click its last. SYNTHESIS SUNLIGHT GLUCOSE STOMATA DIOXIDE CARBON OXYGEN STOMA SUGAR WATER LEAF ROOT FOOD Sort the ingredients for photosynthesis into the correct column. Reactants Sunlight Carbon Dioxide Water Products Glucose Oxygen Which of the following best summarizes photosynthesis? A chemical reaction involving nitrogen and other atmospheric gases An adaptation of plants that allows them to add nutrients to the soil A process by which plants produce sugar using the energy of sunlight Students are observing an aquatic plant. They understand that the bubbles they see rising from the cut stem of the plant are the gases produced during photosynthesis. Which of the following observations provides the best evidence that light is the source of energy for photosynthesis? The frequency of bubbling increases in bright light and slows to a stop in darkness. The orientation of the light seems to have no effect on the production of bubbles. The bubbles always rise to the surface of the water, moving towards the light. Photosynthesis Reading ChloroplastsPhotosynthesis is a process in which sunlight energy is used to make glucose. The site of photosynthesis is in the chloroplast – an organelle found in the leaves of green plants. The main functions of chloroplasts are to produce food (glucose) during photosynthesis, and to store food energy. Chloroplasts contain the pigment, chlorophyll. Chlorophyll absorbs most of the colors in the color spectrum, and reflects only green and yellow wavelengths of light. This is why we see leaves as green or yellow – because these colors are reflected into our eyes.PhotosynthesisGlucose is another name for sugar. The molecular formula for glucose is C6H12O6. Plants make sugar by using the energy from sunlight to transform CO2 from the air with water from the ground into glucose. This process, called photosynthesis occurs in the chloroplast of the plant cell. During this process, oxygen (O2) is created as a waste product and is released into the air for us to breath. The formula for photosynthesis is: (reactants) (products) CO2 + H2O + sunlight ----> C6H12O6 + O2This formula says that carbon dioxide + water molecules are combined with the energy from sunlight to produce sugar and oxygen. The reactants in photosynthesis (what is used) are CO2, water and sun. The plant gets water from the ground through its roots. The plant collects carbon dioxide from the air. Much of the carbon dioxide comes from living organisms that exhale (breath it out) it, but some also comes from factory smokestacks and car fumes. What is photosynthesis?Where does photosynthesis occur?What are chloroplasts and where are they foundWhat are the two main functions of chloroplasts?Why do most leaves appear green?What is the primary pigment found in the chloroplast? Answer the questions in complete sentences. Be sure to number your answer with the question number. What is the formula for photosynthesis?What three things are used to make glucose in photosynthesisWhere does the water come from?Where does the water enter the plant?Name 3 some sources of CO2.What type of energy does the plant use to convert CO2 and H2O into sugar? Answer the questions in complete sentences. Be sure to number your answer with the question number. 13. What is produced in photosynthesis?14. What is the glucose used for?15. What is the oxygen used for? Answer the questions in complete sentences. Be sure to number your answer with the question number.

Photosynthesis Life Science Photosynthesis Plant Biology Cellular Processes Energy Transformation
Use This Worksheet