1. What does “extinct” mean?A. A species that moves to another placeB. A species that has no more living membersC. A species that is very dangerousD. A species that is growing in number2. Which of the following causes animals to lose their homes?A. RecyclingB. Tree plantingC. Illegal loggingD. Organic farming3. What happens when an animal can no longer adapt to its environment?A. It becomes strongerB. It lays more eggsC. It may become extinctD. It changes its color4. Which human activity destroys coral reefs?A. Coral gardeningB. Dynamite fishingC. Coastal cleanupD. Fish feeding5. Which of the following is a cause of water pollution that harms aquatic life?A. Planting mangrovesB. Releasing factory waste into riversC. Building fish sanctuariesD. Using solar energy6. Why is the Philippine Eagle endangered?A. It flies too highB. It is not a fast hunterC. Its forest habitat is destroyedD. It eats harmful food7. What happens if animals lose their food sources?A. They become largerB. They may die or move awayC. They will build new homesD. They will live longer8. Which of these helps protect endangered animals?A. Throwing garbage in riversB. Hunting animalsC. Making wildlife sanctuariesD. Cutting trees near nests9. What are the raw materials for photosynthesis?A. Oxygen and sugarB. Carbon dioxide and waterC. Nitrogen and glucoseD. Oxygen and water10. What is produced during photosynthesis?A. Oxygen and glucoseB. Carbon dioxide and waterC. Oxygen and starchD. Glucose and nitrogen11. Where does photosynthesis mainly occur?A. StomataB. NucleusC. ChloroplastD. Cytoplasm12. What energy is required for photosynthesis?A. Heat energyB. Electrical energyC. Light energyD. Chemical energy13. Which part of the leaf contains chlorophyll?A. CuticleB. XylemC. MesophyllD. Stomata14. What is the main function of oxygen in cellular respiration?A. To break down proteinsB. To release glucose into the bloodC. To help produce ATP in mitochondriaD. To digest food in the stomach15. Which of the following best describes the role of carbohydrates in the body?A. They are used to transport oxygenB. They store genetic informationC. They are the main source of energy for cellsD. They help form muscle tissues16. What happens to the amount of ATP produced when oxygen is not available?A. It increases significantlyB. It stays the sameC. It slightly increasesD. It decreases significantly17 Which condition best represents the effect of oxygen deprivation in the body?A. Muscle strength increasesB. Breathing rate decreasesC. Energy production slows downD. Glucose levels become higher18 During anaerobic respiration, the body produces less ATP and which byproduct?A. WaterB. Lactic acidC. Carbon dioxideD. Oxygen19. Open-Ended: How do plants use sunlight to make food?20. Open-Ended: How do we use oxygen and carbohydrates in cellular respiration?21. Open-Ended: Explain why photosynthesis, and cellular respiration are important to humans.
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Answer: 1. B. A species that has no more living members 2. C. Illegal logging 3. C. It may become extinct 4. B. Dynamite fishing 5. B. Releasing factory waste into rivers 6. C. Its forest habitat is destroyed7. B. They may die or move away 8. C. Making wildlife sanctuaries 9. B. Carbon dioxide and water 10. A. Oxygen and glucose 11. C. Chloroplast 12. C. Light energy13. C. Mesophyll 14. C. To help produce ATP in mitochondria15. C. They are the main source of energy for cells16. D. It decreases significantly 17. C. Energy production slows down B. Lactic acidOpen-Ended Questions0. Plants use sunlight to make food through a process called photosynthesis. They use energy from sunlight, carbon dioxide, and water to produce glucose and oxygen. This process occurs in specialized organelles called chloroplasts, which contain the pigment chlorophyll that absorbs light energy.0. We use oxygen and carbohydrates in cellular respiration to produce energy for our bodies. Oxygen helps to break down carbohydrates, such as glucose, to produce ATP (adenosine triphosphate), which is the energy currency of our cells. This process occurs in the mitochondria and is essential for powering our bodily functions. 1. Photosynthesis and cellular respiration are important to humans because they are interconnected processes that support life on Earth. Photosynthesis produces oxygen and glucose, which are essential for human survival. Cellular respiration uses oxygen and glucose to produce energy for our bodies. Without these processes, we would not have enough oxygen to breathe or energy to power our bodies. Additionally, photosynthesis helps to remove carbon dioxide from the atmosphere, which helps to regulate Earth's climatehope this helps..:>
