Case Study Questions MCQs-Types of Life Process in Plants and Animals for Class 10 Science Biology

ANAND CLASSES discuss some CASE STUDY MCQs with Answers and Explanations based on the given passage on Life Processes for CBSE Class 10 Science (Biology). This case study highlights the significance of food as an energy source and explains how respiration helps in energy production for various life processes. Understanding this concept is crucial for students to grasp the importance of energy in sustaining life.

Case Study 1: Life Processes in Organisms

Read the passage and answer the questions:

All living organisms perform certain basic functions necessary to sustain life. These processes include nutrition, respiration, transport, excretion, control & coordination, growth, movement, and reproduction. These functions ensure that an organism can survive, grow, and reproduce efficiently. For example, the process of nutrition involves the intake of food, which is then broken down into simpler molecules to be absorbed by the body. The energy released from food during respiration powers various biological activities, including the beating of the heart and cellular processes. Transport helps move essential substances within an organism, while excretion removes waste materials to maintain a balanced internal environment.

MCQs Based on the Case Study:

1. Which of the following is NOT considered a life process?
a) Nutrition
b) Respiration
c) Photosynthesis
d) Reproduction

✅ Answer: c) Photosynthesis

Explanation: Photosynthesis is a process specific to plants and some bacteria for food production, whereas life processes like nutrition, respiration, transport, and excretion are common to all living organisms.

2. Why is respiration considered an essential life process?
a) It removes waste materials from the body
b) It provides energy required for biological activities
c) It helps in the movement of substances
d) It converts food into simpler molecules

✅ Answer: b) It provides energy required for biological activities

Explanation: Respiration is the process that releases energy from food, which is essential for all other life processes, including movement, circulation, and even sleeping.

3. What is the primary role of transport in living organisms?
a) To break down food into simpler molecules
b) To move substances from one part of the body to another
c) To remove waste materials from the body
d) To produce energy for various activities

✅ Answer: b) To move substances from one part of the body to another

Explanation: Transport ensures the movement of essential nutrients, gases, and waste products to maintain proper body functions.

4. Which of the following life processes helps an organism respond to environmental changes?
a) Nutrition
b) Control and Coordination
c) Transport
d) Excretion

✅ Answer: b) Control and Coordination

Explanation: Control and coordination help organisms detect and respond to stimuli, enabling them to adapt to changes in their surroundings.

5. What is the primary function of excretion in living organisms?
a) Production of energy
b) Removal of waste materials
c) Growth of the organism
d) Reproduction of new organisms

✅ Answer: b) Removal of waste materials

Explanation: Excretion ensures the removal of toxic waste materials from the body, maintaining a stable internal environment (homeostasis).

Case Study 2: Energy Requirement for Life Processes

Read the passage and answer the questions:

All living organisms require energy to perform various life processes. This energy is obtained from food through chemical reactions. The energy released during respiration is used for essential activities such as beating of the heart, movement, growth, and repair of cells. Even when an organism is asleep, energy is needed for processes like blood circulation and cellular activities. Food serves as the fuel for these biological functions. The energy released from food ensures the survival and proper functioning of an organism.

MCQs Based on the Case Study:

1. What is the primary source of energy for all living organisms?
a) Oxygen
b) Sunlight
c) Food
d) Water

✅ Answer: c) Food

Explanation: Food provides the necessary energy required for carrying out various life processes through respiration.

2. Why do organisms need energy even while sleeping?
a) To perform physical activities
b) To maintain vital body functions like heartbeats and circulation
c) To digest food
d) To produce waste materials

✅ Answer: b) To maintain vital body functions like heartbeats and circulation

Explanation: Even during sleep, the body performs essential processes like circulation and respiration, which require energy.

3. How do organisms obtain energy from food?
a) By breaking down food through digestion
b) By converting food into energy through respiration
c) By absorbing food directly into the bloodstream
d) By transporting food to different parts of the body

✅ Answer: b) By converting food into energy through respiration

Explanation: Respiration is the process through which organisms break down food to release energy in the form of ATP (Adenosine Triphosphate).

4. Which life process is directly responsible for the release of energy?
a) Nutrition
b) Respiration
c) Excretion
d) Transport

✅ Answer: b) Respiration

Explanation: Respiration releases energy by breaking down glucose molecules in the presence (aerobic) or absence (anaerobic) of oxygen.

5. What happens if an organism does not get enough energy from food?
a) It will stop growing and functioning properly
b) It will excrete more waste
c) It will start producing more energy
d) It will reproduce at a faster rate

✅ Answer: a) It will stop growing and functioning properly

Explanation: Energy is essential for all biological activities, and a lack of sufficient energy can lead to fatigue, stunted growth, and malfunctioning of organs.

🔷 Best Coaching Center for IIT-JEE, NEET, and Foundations

🔹 ANAND CLASSES – The best coaching institute for JEE, NEET, and Class 11-12 Foundations.
🔹 Buy complete study material at 👉 https://publishers.anandclasses.co.in/
🔹 Proprietor: NIRMAL ANAND Educations
🔹 Written by: Neeraj Anand
🔹 Published by: Anand Technical Publishers under Anand Classes
📞 Contact: +91-9463138669
📧 Email: anandclasses1996@gmail.com