QUIZ #6 PHOTOSYNTHESIS

WORKSHEET ACITIVITY IN SCIENCE 9 (Module # 6) NAME ____________________________ DATE___________ GRADE & SECTION __________________ SCORE__________ I. Directions: Write TRUTH if the statement is a fact, and write FAKE if it is false. Write your answers on the space provided before each number. (15 pts) _______1. All organisms need energy. _______2. Photosynthesis is a food making process of plants and other autotrophs. _______3. In plants, photosynthesis primarily takes place in the stem and roots. _______4. Photosynthesis takes place in the chloroplast of a plant cell. _______5. Light dependent reaction does not use light energy to produce ATP and NADPH. _______6. The light energy coming from the sun is captured by pigment molecules called chlorophyll. _______7. Oxygen is the by-product of light reaction and is the raw material of cellular respiration. _______8. Carbon dioxide is needed in calvin cycle to produce sugar molecules in the form of glucose. _______9.The chemical equation for photosynthesis is 6CO2 + 6H2O ------> C6H12O6 + 6O2. _______10. The second stage of photosynthesis is also known as light independent reaction. II. Label the parts of the following pictures. (5 pts) Vascular bundles 1. stomata 2. . Spongy mesophyll 3. epidermis 4. . 5. Palisade mesophyll III. Directions: Using the diagram given below, fill in the gaps to complete the information on the process of photosynthesis. Choose your answer from the given diagram. (10 pts) Photosynthesis is important to life on earth because it is the only process that captures 1.______________energy from the sun and converts it into 2._________________energy in the form of a sugar called 3._______________. This process that happens in the 4. _______________ of a plant cell and is consist of two stages. The light dependent reaction takes place in 5. ________ where water molecule splits up with the aid of sunlight resulting to the production of energy molecules called 6. _________and ________________ needed for the next stage .7. _________ gas is the by product of light reaction which goes out from the leaf through the stomata and is absorbed by humans and animals. ATP and NADPH will then enter and fuel up the second stage called 8._____________________ that takes place in 9. ________________ . In this stage 10.____________________________ , an essential gas for plants ,is broken down and will undergo a series of processes to produce a sugar molecule called glucose.