Photosynthesis Process and Equation_Unsolved Paper set
Chapter: Life Processes | Topic: Photosynthesis Process and Equation
PHOTOSYNTHESIS PROCESS AND EQUATION_UNSOLVED PAPER SET
Topic: Photosynthesis Process and Equation
Q. Which process enables green plants to prepare their own food?
- Respiration
- Photosynthesis
- Digestion
- Transpiration
Q. Which pigment is responsible for trapping sunlight during photosynthesis?
- Haemoglobin
- Chlorophyll
- Melanin
- Carotene
Q. Which gas is released into the atmosphere during photosynthesis?
- Carbon Dioxide
- Hydrogen
- Nitrogen
- Oxygen
Q. Which of the following is not a raw material required for photosynthesis?
- Water
- Carbon dioxide
- Sunlight
- Oxygen
Q. In which part of the plant cell does photosynthesis mainly occur?
- Nucleus
- Mitochondria
- Chloroplast
- Vacuole
Q. The food prepared during photosynthesis is mainly stored in plants as:
- Protein
- Fat
- Starch
- Cellulose
Short Questions
Q1. Define photosynthesis. State its importance for green plants.
Q2. Write the word equation for photosynthesis.
Q3. Mention any four essential requirements for photosynthesis.
Q4. A student covers one leaf of a potted plant with black paper and keeps the plant in sunlight for two days. Which concept related to photosynthesis is being investigated?
Q5. Explain the role of chlorophyll in the process of photosynthesis.
Q6. During a summer afternoon, you notice that plants in your school garden appear healthy after being watered. Explain how water contributes to photosynthesis.
Q1. Explain the complete process of photosynthesis. Describe the role of sunlight, chlorophyll, carbon dioxide, and water in the process.
Q2. Write the balanced chemical equation for photosynthesis and explain the significance of each reactant and product involved.
Q3. Compare photosynthesis and respiration on the basis of purpose, raw materials, products formed, and energy transformation.
Q1. Two identical potted plants are placed under different conditions:
Plant A is kept in sunlight and watered regularly.
Plant B is kept in complete darkness but watered regularly.
After one week, compare the condition of both plants and explain how the availability of sunlight affects photosynthesis.
Q2. A farmer grows one crop in an open field receiving full sunlight and another crop under a thick shade of large trees.
Based on your knowledge of photosynthesis, compare the expected growth of the two crops and explain the reason.
Q3. During a school eco-club activity, students are asked to increase greenery on the campus by planting more trees.
Explain how increased photosynthesis benefits:
the plants,
humans,
and the environment.