📚 Topic Summary
Photosynthesis is how plants use sunlight, water, and carbon dioxide to create their own food (sugar) and release oxygen. Think of it as plant cooking! Cellular respiration is the process where living organisms, including plants and animals, break down sugar to release energy, using oxygen and releasing carbon dioxide and water. It's like burning fuel to power a car. Photosynthesis and cellular respiration are opposite processes, forming a cycle that sustains life on Earth.
🧪 Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Chlorophyll |
A. The process of breaking down glucose to release energy. |
| 2. Glucose |
B. A green pigment in plants that absorbs sunlight. |
| 3. Cellular Respiration |
C. The process of converting light energy into chemical energy. |
| 4. Photosynthesis |
D. A simple sugar that is a major source of energy for cells. |
| 5. Carbon Dioxide |
E. A gas absorbed by plants during photosynthesis. |
🌱 Part B: Fill in the Blanks
Complete the sentences using the words: oxygen, sunlight, glucose, carbon dioxide, energy.
During photosynthesis, plants use ________, water, and ________ to create ________ and release ________. During cellular respiration, organisms use ________ and ________ to produce ________, ________ and ________.
🧠 Part C: Critical Thinking
Explain how photosynthesis and cellular respiration are related. Why are both processes important for life on Earth?