Life processes-science class 10th test

Here is a comprehensive test paper for Class 10 Science, Chapter 5: “Life Processes,” designed in accordance with the latest CBSE syllabus for the 2024-25 academic year. This paper includes a variety of question types to assess in-depth knowledge, competency, and familiarity with previous exam patterns.

Section A: In-Depth Knowledge Questions

1. Explain the process of photosynthesis in detail. Include the roles of chlorophyll and stomata, and provide the balanced chemical equation for the process.
2. Describe the human digestive system. Outline the major organs involved and explain the process of digestion and absorption of carbohydrates.
3. Discuss the double circulation of blood in human beings. Why is it necessary? Illustrate your answer with a labeled diagram of the human heart.

Section B: Competency-Based Questions

4. A person has been fasting for two days. Explain how their body manages energy production during this period.
5. A plant is kept in a dark room for 48 hours and then exposed to light. Predict and explain the changes in the rate of photosynthesis during this period.
6. A patient is diagnosed with a blockage in the renal artery. Discuss the potential effects on kidney function and overall homeostasis.

Section C: Previous Year Questions

7. Differentiate between aerobic and anaerobic respiration. Provide one example of each type where it occurs in living organisms.
8. What are the differences between autotrophic and heterotrophic nutrition? Give one example of each.
9. Explain the mechanism of breathing in human beings. Include the roles of the diaphragm and intercostal muscles.

Section D: NCERT Textbook Questions

10. Draw a labeled diagram of the human excretory system. Explain the function of each part.
11. How do guard cells regulate the opening and closing of stomata? Discuss the factors that influence this process.

Section E: Sample Paper Questions

12. Explain the process of transpiration in plants. What are its functions and how is it regulated?
13. Describe the structure of a nephron. Explain how it is involved in the process of urine formation.
14. What is the role of bile in the digestion of fats? Where is bile produced and stored?

Section F: Case-Based Questions

1. Case Study:

A farmer notices that his crops are wilting despite regular watering. Upon investigation, it is found that the soil lacks essential minerals.

• Explain how mineral deficiency can lead to wilting in plants.
• Discuss the role of transpiration in water movement within the plant and how it might be affected by mineral deficiency.

1. Case Study:

A patient complains of frequent urination and excessive thirst. Tests reveal high blood glucose levels.

• Identify the possible medical condition and explain its effect on the excretory system.
• Describe how this condition can affect the process of urine formation in the kidneys.

This test paper is designed to evaluate a range of skills, from factual recall to application and analysis, ensuring a thorough assessment of students’ understanding of life processes.