Class 10 Science Chapter 5 MCQ : Life Processes MCQs Quiz
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Are you curious about how your body functions or how plants make their own food? Class 10 Science Chapter 5 Life Processes is a fundamental chapter in Biology that explains the vital activities that keep living organisms alive. To help you prepare effectively for your exams, we have designed a comprehensive Life Processes MCQs Quiz in English. This quiz covers essential topics such as nutrition in plants and animals, human respiration, transportation in plants and humans, and excretion. Practicing these Class 10 Science MCQs is the best way to revise complex biological processes and ensure you are ready for your CBSE Board exams. Test your knowledge now!
lass 10 Science Chapter 5 MCQ : Life Processes MCQs Quiz
Chapter 5, Life Processes, delves into the maintenance functions in living organisms that are essential for survival. It begins with Nutrition, explaining autotrophic nutrition (photosynthesis in plants) and heterotrophic nutrition in humans (digestive system). The chapter moves on to Respiration, comparing aerobic and anaerobic respiration and detailing the human respiratory system. A major portion of the chapter is dedicated to Transportation, explaining the structure and function of the human heart, blood vessels, and the concept of double circulation, as well as the transport mechanism in plants (xylem and phloem). Finally, it covers Excretion, detailing the human excretory system, the structure and function of the nephron, and the process of urine formation.
Conclusion
Mastering Class 10 Science Chapter 5 is crucial for understanding advanced biological concepts later. By attempting this Life Processes Class 10 MCQs Quiz, you have tested your grasp on diagrams, functions of organs, and biochemical pathways like photosynthesis and respiration. Regular practice of these CBSE Class 10 Science MCQs will help you memorize key terms like “xylem,” “nephron,” and “double circulation” effectively. Review your answers, revisit the NCERT textbook for doubts, and keep practicing to achieve excellent marks in your board exams.
FAQs on Class 10 Science Chapter 5 MCQ : Life Processes MCQs Quiz
- What is the primary function of stomata in plants?
Stomata are tiny pores primarily responsible for the exchange of gases (carbon dioxide and oxygen) during photosynthesis and respiration, as well as transpiration. - Name the enzyme present in saliva that breaks down starch.
The enzyme present in saliva is salivary amylase (or ptyalin), which breaks down starch into simple sugars. - What is the role of hydrochloric acid in the stomach?
Hydrochloric acid creates an acidic medium for the action of the enzyme pepsin and kills bacteria that enter the stomach with food. - Define double circulation.
Double circulation refers to the system in which blood passes twice through the heart during one complete cycle: once through the lungs (pulmonary circulation) and once through the body tissues (systemic circulation). - Which blood vessels carry oxygenated blood from the lungs to the heart?
The Pulmonary Veins carry oxygenated blood from the lungs to the left atrium of the heart. - What are the excretory units of the kidney called?
The excretory units of the kidney are called nephrons. - Why do veins have valves?
Veins have valves to prevent the backflow of blood, ensuring that blood flows in one direction toward the heart against gravity. - Write the equation for the process of photosynthesis.
\( 6CO_2 + 6H_2O \xrightarrow[\text{Chlorophyll}]{\text{Sunlight}} C_6H_{12}O_6 + 6O_2 \) - What is the difference between aerobic and anaerobic respiration?
Aerobic respiration requires oxygen and releases a large amount of energy, whereas anaerobic respiration occurs in the absence of oxygen and releases a smaller amount of energy (e.g., in yeast and muscles during sprinting). - What is translocation?
Translocation is the process by which food (sugar) synthesized in leaves is transported to other parts of the plant through the phloem tissue.
Test your knowledge with our Class 10 Science Chapter 5 MCQ Life Processes MCQs Quiz. Master nutrition, respiration, and transportation questions for top CBSE exam scores!
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