8th standard biology question paper

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12-01-2025

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8th Standard Biology Question Paper: A Comprehensive Guide for Success

This guide provides a framework for an 8th-standard biology question paper, focusing on key concepts and question types commonly encountered. Remember that specific content will vary depending on the curriculum followed. This example emphasizes understanding and application rather than rote memorization.

Section 1: Multiple Choice Questions (MCQs) – 20 Marks

(Each question carries 1 mark)

1. Which of the following is NOT a characteristic of living things? a) Growth b) Movement c) Crystallization d) Respiration

2. The process by which plants make their own food is called: a) Respiration b) Photosynthesis c) Digestion d) Excretion

3. The basic unit of life is: a) Tissue b) Organ c) Cell d) Organ System

4. Which organ system is responsible for transporting oxygen throughout the body? a) Digestive System b) Circulatory System c) Respiratory System d) Nervous System

5. What is the function of chlorophyll in plants? a) To absorb water b) To absorb sunlight c) To store food d) To transport nutrients

(Continue with 15 more MCQs covering topics like plant and animal cells, tissues, organs, organ systems, basic animal physiology, and simple ecosystems.)

Section 2: Short Answer Questions – 30 Marks

(Each question carries 5 marks)

1. Describe the process of photosynthesis, including the necessary inputs and outputs. Explain the role of chlorophyll.

2. Compare and contrast plant and animal cells. Include at least three key differences in your answer.

3. Explain the importance of the circulatory system in animals. Describe the main components of the human circulatory system.

4. Describe the different types of tissues found in the human body and their functions. Give one example of each tissue type.

5. Explain the concept of a food chain. Draw a simple food chain with at least three organisms, and identify the producer, consumer, and decomposer.

Section 3: Long Answer Questions – 30 Marks

(Each question carries 10 marks)

1. Discuss the different levels of organization in living organisms, starting from cells and progressing to organ systems. Provide examples for each level.

2. Explain the importance of biodiversity and discuss the threats to biodiversity in the modern world. Suggest at least three ways to conserve biodiversity.

3. Compare and contrast aerobic and anaerobic respiration. Explain the significance of each type of respiration for living organisms.

Section 4: Practical/Diagram Based Questions - 20 Marks

1. Draw a well-labeled diagram of a typical plant cell, indicating the function of each labeled part. (10 marks)

2. Identify and label the main parts of the human digestive system in a provided diagram. Briefly describe the function of each part. (10 marks)

Marking Scheme: A detailed marking scheme should accompany the question paper, outlining the specific criteria for awarding marks for each question. This ensures consistency and fairness in evaluation.

Note: This is a sample question paper. The actual question paper will depend on the specific syllabus and learning objectives of the 8th-standard biology curriculum being followed. Consult your textbook and class notes for specific details on topics covered. This framework aims to provide a realistic and challenging assessment of 8th-grade biology knowledge.