CBSE Class 7 Science Chapter 10 Important Questions for Respiration in Organisms - Free PDF Download
Very Short Answer Questions. (1 Mark)
1. Fill in the blanks:
Lactic acid is produced during _______________ respiration.
Ans: Ethanol
During anaerobic respiration yeast produces _________________.
Ans: Absence
Anaerobes are organisms that can survive in the ______________ of air.
Ans: Oxygen-rich
Intake of ____________________ air is called inhalation.
Ans: Carbon dioxide
Exhaled air is rich in _________________.
Ans: Accumulation
Muscle cramps are caused due to the ________________ of lactic acid in muscle cells.
Ans: Spiracles
Small openings in the side of the body of the cockroach for the exchange of gases are called ____________.
Ans: Tracheae
Network of air tubes inside the body of insects is called ______________.
Ans: Tracheae
Earthworms and __________________ breathe through their moist skin.
Ans: Frogs
Gills are respiratory organs found in ______________.
Ans: Fishes
Short Answer Questions (2 Marks)
2. Differentiate between anaerobic respiration in muscle cells and that in yeast.
Ans: The difference between anaerobic respiration in muscles cells and that in yeast are as follows:
3. Differentiate between respiration in insects and earthworms.
Ans: The difference between respiration in insects and earthworms are as follows:
4. Give the pathway of air during respiration
Ans: The pathway is depicted as below:
Air During Respiration
5. Give the composition of inhaled and exhaled air.
Ans: The composition of air is as follows:
The oxygen content of inhaled air is 21% and the carbon dioxide content is 0.04 percent.
Exhaled air has a 16.4 percent oxygen content and a 4.4 percent carbon dioxide content.
6. Give the reactions for aerobic and anaerobic respiration in muscle cells.
Ans:
${\underset{(Glucose)}{\text{C}_6}}{{\text{H}}_{12}}{{\text{O}}_6} + 6\underset{(oxygen)}{{\text{O}}_2}\xrightarrow[{{\text{ManySteps}}}]{{{\text{Aerobic}\;{Representation}}}}\underset{\text{(carbondioxide)}}6{\text{C}}{{\text{O}}_2} + 6\underset{\text{(water)}}{{\text{H}}_2}{\text{O}} + \underset{\text{(usable energy)}}38{\text{ATP}} $
${\underset{\text{(Glucose)}}{\text{C}_6}}{{\text{H}}_{12}}{{\text{O}}_6}\xrightarrow[{{\text{Fewer}\;{Steps}}}]{{{\text{Anaerobic\;Representation}}}}6{\text{ Lactic Acids }} + {\text{ }}2\underset{\text{(usable energy)}}{\text{ATP}} \\$
Long Answer Questions (5 Marks)
7. Draw and label the respiratory system in humans.
Ans:
Respiratory System in Humans
8. Give an experiment to demonstrate the role of the diaphragm in breathing.
Ans: An experiment can be put up to demonstrate the role of the diaphragm in breathing.
Take a wide-mouthed plastic bottle with the bottom removed.
A Y-shaped plastic or glass tube is inserted into the bottle's lid.
Two deflated balloons are attached to the bottle's forked end. The bottle's cap is securely fastened.
A thin rubber sheet has been wrapped tightly around the base of the bottle to hide the bottom.
The balloons inflate when the rubber sheet is pulled away from the base, and deflate when the rubber sheet is pressed inwards.
The diaphragm is represented by the rubber sheet in the experiment, while the lungs are represented by the balloons. The lungs expand when the diaphragm flattens out. The lungs contract when the diaphragm returns to its dome position.
Diaphragm in Breathing
9. Explain how respiration occurs in plants.
Ans: Aerobic respiration is carried out by plants. Gases are transferred through microscopic pores found on the aerial surfaces of plants, such as leaves. These pores are called stomata. Stomata are the microscopic pores that can be seen on the lower surface of the leaves. Gas exchange happens when the stomata are open. Photosynthesis happens in plants during the day due to the availability of sunlight, and gases are exchanged for photosynthesis. Carbon dioxide is ingested, while oxygen is exhaled.
Therefore, plant respiration occurs primarily at night. At night, the plants take in oxygen from the surrounding environment and release carbon dioxide. Plants then use oxygen for respiration. Plant root cells also require energy and, as a result, oxygen is used for aerobic respiration. Root cells take in oxygen from the air that exists between soil particles. When the soil is overwatered, the air gaps are suffocated, and the root is unable to breathe. Therefore, soil overwatering should be avoided.
10. Differentiate between inhalation and exhalation
Ans: The difference between inhalation and exhalation is:
Study Important Questions for Class 7 Science Chapter 10 – Respiration in Organisms
Respiration in organisms depends on the organs and the processes used to exchange gases at a cellular level. This is when you will learn the difference between breathing and respiration. This chapter will clearly explain the differences using proper examples. The exercise questions will also focus on these concepts. They will test your understanding of this chapter too. If you want more practice questions, you can check out Class 7 Chapter 10 Science Important Questions and answers made by some of the best teachers.
These questions are made based on what you learn in the chapter. The main goal of these NCERT Science Class 7 Chapter 10 Important Questions is to show you different ways questions can be asked. These formats are designed to check how well you understand the topic. By answering these questions, you not only practice for exams but also deepen your knowledge.
After solving all the questions given in the exercises of this chapter, download Class 7th Science Chapter 10 Important Questions to test your skills. Solve these questions to find out whether you have understood the new concepts of respiration properly or not. Proceed to check the answers provided in the same file. Compare your answers with that of the solution file and find out your efficiency.
Why Should You Download Important Questions for Class 7 Science Chapter 10?
Apart from your study material for Class 7 Science, you will need the assistance of the Class 7 Science Chapter 10 Important Questions set by the subject experts. Studying these questions will help you with the following benefits.
New Question Suggestion for Class 7 Science Chapter 10
The exercise questions can be easily solved using the NCERT solutions. Once you are done with the exercise, you will need questions aiming to deliver higher concepts within the syllabus range. The regular curriculum is unlikely to ask questions similar to the exercise. So, when you study these important questions from Class 7 Science Chapter 10, it will expand your knowledge and provide great tips to follow. Understanding the concepts becomes clearer with these new and important questions and answers.
Another reason for using NCERT Class 7 Science Chapter 10 Important Questions is to clarify your residual doubts related to the new concepts. By checking the questions and answers, you will understand how the concepts have been applied by the expert teachers. These questions will become extra support for clarification of your doubts related to the chapter.
Practising Answering Techniques
After completely preparing the chapter exercise, you will get a couple more Respiration in Organisms Class 7 Important Questions from here to study. These questions will broaden your knowledge. You will get a better foundation to practice how to answer questions in Science and score better in the exams. All these answers are composed of experienced teachers. They know how Class 7 students can score more in the exams. Use their techniques to stay ahead of the class.
Understanding the Differences in the Respiration of Different Animals and Plants
By following Chapter 10 Science Class 7 Important Questions, you will easily understand the differences between the process of respiration in different animals. This shows how different evolutionary methods have given birth to various types of breathing processes.
Understanding Aerobic and Anaerobic Respiration
This is the first standard where students will learn what aerobic and anaerobic respiration are. This basic concept will then be used in higher classes to learn deeper concepts. Focus on the Class 7 Science Chapter 10 Important Question and Answers related to this topic.
Download this extra set of questions and answers of Respiration in Organisms. Get to know what conceptual questions can be asked by the teachers during an exam.
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Conclusion
Exploring the Important Questions for CBSE Class 7 Science Chapter 10 - Respiration in Organisms offers students a comprehensive insight into the intricate processes governing respiration. These questions provide a holistic review of respiration's mechanisms within living organisms, fostering a deep understanding of this fundamental biological process. By engaging with these queries, students enhance their knowledge, unraveling the complexities of respiration and its significance in sustaining life. This practice aids in consolidating key concepts, empowering students to grasp the diverse aspects of respiration and its vital role in the survival of organisms.
FAQs on Important Questions for CBSE Class 7 Science Chapter 10 - Respiration in Organisms
1. What is the Difference Between Respiration and Breathing?
Breathing is the process of inhaling and exhaling air by the organs responsible for gaseous exchange. Respiration is the entire process of gaseous exchange occurring at the cellular level. Check the answers to the Class 7 Science Ch 10 important questions to find more about the differences between respiration and breathing.
2. Why Should You Prefer Vedantu for NCERT Solutions for Class 7 Science Chapter 10 Important Questions?
Class 7 students prefer Vedantu for the important questions of all the chapters Science for the quality explanation of the conceptual answers. They can learn this chapter of Class 7 in a better way by referring to the important questions provided.
3. What do you mean by respiration?
Respiration is a biological process in which stored food is oxidized in the presence of oxygen and carbon dioxide is released from the system to supply energy to the body's cells and allow them to carry out their tasks. During respiration, an organism provides its cells and tissues with oxygen for metabolism and removes carbon dioxide produced during energy-producing activities. This is accomplished by physical and chemical mechanisms (such as breathing and diffusion).
4. What do you mean by breathing?
Breathing is the process by which oxygen-rich air is absorbed into an organism's body and carbon dioxide-rich air is evacuated (with the aid of breathing organs). During breathing, both inhalation and exhalation occur on a regular basis. A breath is defined as one intake followed by one exhale. Inhaling, or inspiration is the initial process. The diaphragm undergoes contraction and pulls downward during the process of inhalation. The muscles that are present between the ribs tend to tighten and pull upward at the same instant.
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6. What is the importance of respiration?
Respiration is vital since it generates energy that is required for the body's regular functioning. Respiration delivers oxygen to cells while also removing harmful carbon dioxide. Heat is also produced as part of the energy released by breathing. To provide the body's cells the energy they need to function, stored food is oxidized in the presence of oxygen and carbon dioxide is expelled from the system. It is a very crucial phenomenon of the human body and keeps the body’s energy transfer cycle in check. For more information, you can visit Vedantu app.
7. Why is the importance of our lungs?
Your lungs are responsible for bringing new oxygen into your body. They eliminate carbon dioxide and other waste gases that your body does not require. The muscles of the rib cage, particularly the main muscle, the diaphragm, are used to breathe in (inhale). Your lungs deliver oxygen and remove carbon dioxide from your body, allowing every other organ to operate properly. Respiratory issues can be caused by genetics, illness, and the environment.