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Important Questions and Answers for Class 7 Science Chapter 9 Life Processes In Animals 2025-26

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Life Processes in Animals Class 7 Questions and Answers PDF for CBSE Exam Practice

Important Questions Class 7 Science Chapter 9 Life Processes In Animals are listed here to help you understand this NCERT chapter easily. These questions are made for Class 7 students who want to prepare well for their Science exams. Vedantu’s Important Questions with Answers cover all key points from Chapter 9.


The chapter talks about how animals carry out life processes like nutrition, respiration, and excretion. You can find class 7 science chapter 9 life processes in animals pdf on this page. It makes revision simple because you get clear answers, diagrams, and marking tips.


Practicing these questions helps you score better and revise faster. You can use the PDF for free to study anytime. Download the Important Questions PDF and start preparing today for your Science chapter tests.


Life Processes in Animals Class 7 Questions and Answers PDF for CBSE Exam Practice

1. Multiple choice questions.


1.1 The main function of the small intestine in the human digestive system is:


  • (a) Absorb water and salts from food
  • (b) Absorption of digested nutrients into the blood
  • (c) Churn food with digestive juices
  • (d) Remove waste from the body

Answer: (b) Absorption of digested nutrients into the blood.


1.2 Which organ secretes bile to aid in digestion?


  • (a) Pancreas
  • (b) Stomach
  • (c) Liver
  • (d) Large intestine

Answer: (c) Liver.


1.3 Which structure in birds helps to grind food as they do not have teeth?


  • (a) Beak
  • (b) Gizzard
  • (c) Intestine
  • (d) Liver

Answer: (b) Gizzard.


1.4 What is the correct sequence of organs that food passes through in the human digestive system?


  • (a) Mouth → Oesophagus → Stomach → Small intestine → Large intestine → Anus
  • (b) Mouth → Stomach → Oesophagus → Large intestine → Anus → Small intestine
  • (c) Mouth → Stomach → Large intestine → Oesophagus → Small intestine → Anus
  • (d) Mouth → Small intestine → Stomach → Oesophagus → Large intestine → Anus

Answer: (a) Mouth → Oesophagus → Stomach → Small intestine → Large intestine → Anus.


2. Very Short Answer (VSA).


2.1 What is meant by ‘digestion’?


Answer: Digestion is the process by which complex food components are broken down into simpler, absorbable forms in the body.


2.2 Name the primary function of the large intestine.


Answer: The primary function of the large intestine is to absorb water and some salts from undigested food, forming semi-solid waste.


2.3 State the main function of alveoli in the human lungs.


Answer: Alveoli are thin-walled sacs in the lungs responsible for the exchange of oxygen and carbon dioxide with the blood.


2.4 Which part of the human digestive system is longest?


Answer: The small intestine is the longest part of the human digestive system, measuring nearly 6 metres long.


3. Short Answer Questions.


3.1 Explain how saliva helps in the digestion of food in the mouth.


Answer: Saliva contains digestive enzymes that start breaking down starch in foods like chapati and rice into sugars. This is why such foods taste sweeter after chewing. Saliva also moistens food, making it easier to chew and swallow.


3.2 Describe the process of respiration in humans, including the role of the diaphragm.


Answer: In humans, respiration begins with breathing in air through the nostrils, passing through air passages to the lungs. The diaphragm moves downward during inhalation to increase chest space, allowing air in. Oxygen is exchanged for carbon dioxide in alveoli, and exhalation expels carbon dioxide.


3.3 How do ruminant animals like cows digest grass differently from humans?


Answer: Ruminants like cows partially chew and swallow grass, which passes into their specialized stomach (rumen). Later, the food returns to the mouth for thorough chewing, a process called rumination, enabling complete digestion of tough plant material, unlike humans.


3.4 Why do aquatic animals such as fish have gills?


Answer: Fish have gills adapted to extract dissolved oxygen from water. Gills are richly supplied with blood vessels and allow exchange of oxygen and carbon dioxide directly with the surrounding water, enabling aquatic respiration.


4. True or False Questions.


4.1 The function of bile secreted by the pancreas is to neutralise acids in food.


Answer: False.


4.2 Respiration is a chemical process that occurs inside the body to release energy.


Answer: True.


4.3 All animals have the same structure of lungs for breathing.


Answer: False.


4.4 The large intestine is longer than the small intestine.


Answer: False.


3. Fill in the Blanks Questions.


5.1 The process of absorbing nutrients from digested food into the blood occurs mainly in the __________.


Answer: small intestine


5.2 Birds use a specialized muscular organ, called the __________, to grind their food.


Answer: gizzard


5.3 The movement of food through the food pipe occurs by the action known as __________.


Answer: peristalsis


5.4 In humans, the exchange of gases takes place in the tiny sacs of lungs called __________.


Answer: alveoli


Why Learning Life Processes in Animals Matters for Class 7 Students

Exploring class 7 science chapter 9 life processes in animals question answer helps students understand how nutrition, respiration, and other vital processes work in animals. Mastering these concepts builds curiosity and a strong base for higher science learning, making further topics easier to grasp.


These questions offer clear explanations following the latest CBSE guidelines, supporting quick revision and self-study. Whether you want life processes in animals class 7 questions and answers pdf or need extra help before exams, these resources encourage independent and effective study habits.


For learners who want to reinforce their understanding, access to class 7 science chapter 9 life processes in animals notes and worksheets creates confidence. Practice using life processes in animals class 7 worksheet pdf and related study tools to score well and deepen your interest in science concepts.


FAQs on Important Questions and Answers for Class 7 Science Chapter 9 Life Processes In Animals 2025-26

1. What are the most important question types to expect in Class 7 Science Chapter 9 – Life Processes in Animals?

The main question types in Class 7 Science Chapter 9 important questions include MCQs, very short answers, short answers, and long answers. Pay attention to definitions, functions, diagrams (like digestive or circulatory systems), and process explanations. Practicing all these ensures coverage of likely exam patterns in CBSE tests.

2. How can I answer long questions in Life Processes in Animals to get full marks in CBSE exams?

Always write stepwise answers using chapter keywords. For long answers, use this approach:

  • Begin with a short introduction.
  • Present each step or function in clear points.
  • Use neat diagrams if required.
  • End with a brief conclusion or summary sentence.

3. Where can I find and download Class 7 Science Chapter 9 Life Processes in Animals important questions with answers as a PDF?

You can easily access and download the Life Processes in Animals Class 7 questions and answers PDF from trusted educational platforms like Vedantu. PDFs often include structured important questions with stepwise solutions, diagrams, and value points for CBSE exam prep. Always choose updated, chapter-aligned resources.

4. Which subtopics in Life Processes in Animals carry high weightage for exams?

Focus on these high-weightage subtopics for Class 7 Science Chapter 9 important questions:

  • Digestive system and its stages
  • Circulatory system (heart and blood functions)
  • Respiration in animals
  • Excretion and importance
  • Relevant diagrams

5. What is the best way to practice and score marks in diagram-based questions for this chapter?

To score well in diagram-based questions from Life Processes in Animals Class 7:

  • Practice neat, labelled diagrams (e.g., human digestive system).
  • Use sharp pencils and label every part clearly.
  • Underline key terms in your answers.

6. How can I avoid common mistakes in Class 7 Science Chapter 9 important questions during exams?

Common mistakes include missing keywords, incomplete diagrams, and skipping steps in process answers. Tips to avoid errors:

  • Read the question carefully and underline requirements.
  • Check if diagrams and labellings are complete.
  • Revise definitions and short forms before the exam.

7. What is the most effective revision plan for Life Processes in Animals Class 7 important questions before exams?

For best revision of Class 7 Science Chapter 9 Life Processes in Animals:

  • First, revise notes and diagrams for quick recall.
  • Solve previous years’ and sample important questions.
  • Attempt mock papers under timed conditions.
  • Revise mistakes and unclear points the day before exam.