Class 10 Science Chapter 5: Life Process — 3 Marker Important Questions
Practice Life Process 3 Marker important questions and mock-test sets for CBSE revision.
Topic-wise important and practice questions
Review question distribution across chapter topics for 3 Mark questions.
| Topic | 3 Mark |
|---|---|
| Experimental Evidence for Photosynthesis | 3 |
| Blood Vessels, Blood Pressure, Platelets and Lymph | 2 |
| Human Heart and Double Circulation | 3 |
| Nephron, Selective Reabsorption and Urine Regulation | 2 |
| Dialysis and Excretion in Plants | 4 |
| Aerobic and Anaerobic Respiration | 1 |
| Aquatic and Terrestrial Respiration | 2 |
| Digestion in the Small Intestine | 3 |
| Heterotrophic Strategies and Nutrition in Unicellular Organisms | 3 |
| Human Digestion in the Mouth and Peristalsis | 2 |
| Human Respiratory System and Alveoli | 3 |
| Life Processes and Molecular Movements | 3 |
| Plant Transport: Xylem and Phloem | 1 |
| Stomata and Guard Cells | 2 |
| Autotrophic and Heterotrophic Nutrition | 2 |
| Photosynthesis and Raw Materials | 2 |
| Transport of Oxygen and Carbon Dioxide in Blood | 2 |
| Blood Components and Their Functions | 3 |
| Digestion in the Stomach | 1 |
| Phloem Translocation | 3 |
| Need for Transport in Multicellular Organisms | 0 |
| Villi, Absorption and Large Intestine | 0 |
| Xylem Transport, Root Pressure and Transpiration | 2 |
| Glucose, Pyruvate and ATP | 1 |
| Human Excretory System | 0 |
3 Marker Preparation & Exam Strategy
3 Mark questions evaluate conceptual depth, multi-step problem solving, diagram explanations, and cause-effect reasoning.
- Organize responses into three well-defined points or three logical reasoning steps.
- Support answers with neat labeled diagrams, chemical equations, or relevant citations where applicable.
- State intermediate values and units clearly in multi-step derivations or numerical problems.
Sample Questions
Q1. Describe the principle, working, or main process in Life Process with the help of a labeled diagram.
Model Answer: Provide the governing principle, concise step-by-step description, and neat schematic representation with key labels.
Q2. Derive or explain the relationship between quantities involved in Life Process.
Model Answer: State initial assumptions, apply governing laws, and show logical progression to the final expression.
Q3. Analyze a scenario or numerical problem based on Life Process and calculate the required outcome.
Model Answer: List given parameters, apply the governing relationship, and state the final result with appropriate units.