Class 10 Biology
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Welcome to JSUNIL TUTORIAL's
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10th Life Process |
Dear students, in this section, we will delve into the fascinating world of life processes that sustain both plants and animals. I, your friendly teacher Jsunil Sir, will guide you through the basic concepts of nutrition, respiration, transport, and excretion.
Nutrition:
Have you ever wondered how plants and animals obtain the energy they need to grow and survive? Join me as we explore the captivating process of nutrition. We'll uncover how plants produce their own food through photosynthesis and how animals acquire nutrients from their surroundings.
Respiration:
Breathing is not just for humans; plants and animals engage in respiration too! Let's demystify respiration together and understand how it's vital for releasing energy. We'll explore how gases are exchanged and how oxygen is utilized by organisms for various functions.
Transport:
Ever wondered how water and nutrients move within plants? Curious about how blood circulates in animals? Join me on a journey through the intricate networks that allow substances to travel within organisms. We'll unlock the secrets of xylem, phloem, and the circulatory system.
Excretion:
Just like us, plants and animals need to eliminate waste products. Discover how waste management works in the plant and animal kingdoms. We'll learn about excretory organs, their functions, and the crucial role they play in maintaining a healthy life.
Throughout our exploration, I'll present concepts in easy communicable English, with concise explanations that break down complex ideas into simple terms. You'll find short and comprehensive answers to your questions, along with thought-provoking exercises to reinforce your understanding.
As we embark on this learning journey, remember that I'm here not only as your teacher but also as your fellow student.
Let's make the world of biology enjoyable and easy to grasp. At the end of each section, you'll find my personal opinions and insights, along with suggestions on the best ways to tackle challenges.
So, dive in and let's unravel the mysteries of life processes in plants and animals together. Happy learning!
Warm regards,
Jsunil Sir
Nutrition:
Have you ever wondered how plants and animals obtain the energy they need to grow and survive? Join me as we explore the captivating process of nutrition. We'll uncover how plants produce their own food through photosynthesis and how animals acquire nutrients from their surroundings.
Respiration:
Breathing is not just for humans; plants and animals engage in respiration too! Let's demystify respiration together and understand how it's vital for releasing energy. We'll explore how gases are exchanged and how oxygen is utilized by organisms for various functions.
Transport:
Ever wondered how water and nutrients move within plants? Curious about how blood circulates in animals? Join me on a journey through the intricate networks that allow substances to travel within organisms. We'll unlock the secrets of xylem, phloem, and the circulatory system.
Excretion:
Just like us, plants and animals need to eliminate waste products. Discover how waste management works in the plant and animal kingdoms. We'll learn about excretory organs, their functions, and the crucial role they play in maintaining a healthy life.
Throughout our exploration, I'll present concepts in easy communicable English, with concise explanations that break down complex ideas into simple terms. You'll find short and comprehensive answers to your questions, along with thought-provoking exercises to reinforce your understanding.
As we embark on this learning journey, remember that I'm here not only as your teacher but also as your fellow student.
Let's make the world of biology enjoyable and easy to grasp. At the end of each section, you'll find my personal opinions and insights, along with suggestions on the best ways to tackle challenges.
So, dive in and let's unravel the mysteries of life processes in plants and animals together. Happy learning!
Warm regards,
Jsunil Sir
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Class 10 Chapter 06 Life Process |
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Soled Question Board Questions
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Class 10 Chapter 06 Life Process Solved Hots Question
Download Class 10th Chapter: Life Processes NCERT Solutions Download File 10th Ch_06 Life processes E-Book Download File |
Class 10 CBSE Board Previous year Questions
Q. Name the glands present in the wall of the stomach that release secretions for the digestion of food. Write the three components of secretion that are released by these glands.2014
Ans: The gland present in the wall of stomach is Gastric Glands . The Three Components of Secretion That are released by these glands are : Hydrochloric Acid (HCl) , Pepsin , Mucus.
1). Pepsin : It helps in the digestion of proteins.
2) Hydrochloric acid : It kills the germs present in the stomach as well as it maintains an acidic nature which helps the enzyme pepsin to act on proteins.
3) Mucous: It acts as a protective layer for the walls of the stomach against HCL .
Q. Describe the structure and functioning of nephrons
Ans: Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 11.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule
Functioning of a nephron :
Ans. (a) fats are emulsified by bile salts. The emulsified fats are acted upon by pancreatic and intestinal lipase to form fatty acids and glycerol.
( b)digestion of fats occurs in small intestine.
Q. What is the function of epiglottis in man? 2014
Ans: Epiglottis is a triangular shaped flap of cartilage present at the glottis. It prevents the food from entering the windpipe while swallowing
Q. When we breathe out, why does the air passage not collapse ? 2014
Ans: Trachea does not collapse because there are rings of muscles around our trachea and are called cartilage which prevents it from collapsing.
Q. Herbivores have longer small intestine while carnivores have shorter small intestine. Give reason.
Ans: Herbivores eats grass which contains a lot of cellulose and to digest this cellulose small intestine is longer in them whereas in case of carnivores small intestine is shorter because they eat meat which can be digested easily.
Q. Name the glands present in the wall of the stomach that release secretions for the digestion of food. Write the three components of secretion that are released by these glands.2014
Ans: The gland present in the wall of stomach is Gastric Glands . The Three Components of Secretion That are released by these glands are : Hydrochloric Acid (HCl) , Pepsin , Mucus.
1). Pepsin : It helps in the digestion of proteins.
2) Hydrochloric acid : It kills the germs present in the stomach as well as it maintains an acidic nature which helps the enzyme pepsin to act on proteins.
3) Mucous: It acts as a protective layer for the walls of the stomach against HCL .
Q. Describe the structure and functioning of nephrons
Ans: Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 11.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule
Functioning of a nephron :
- The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
- The water and solute are transferred to the nephrons at Bowman’s capsule.
- In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
- The filtrate then moves down into the loop of Henle, where more water is absorbed.
- From here, the filtrate moves upwards into the distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
- The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.
Ans. (a) fats are emulsified by bile salts. The emulsified fats are acted upon by pancreatic and intestinal lipase to form fatty acids and glycerol.
( b)digestion of fats occurs in small intestine.
Q. What is the function of epiglottis in man? 2014
Ans: Epiglottis is a triangular shaped flap of cartilage present at the glottis. It prevents the food from entering the windpipe while swallowing
Q. When we breathe out, why does the air passage not collapse ? 2014
Ans: Trachea does not collapse because there are rings of muscles around our trachea and are called cartilage which prevents it from collapsing.
Q. Herbivores have longer small intestine while carnivores have shorter small intestine. Give reason.
Ans: Herbivores eats grass which contains a lot of cellulose and to digest this cellulose small intestine is longer in them whereas in case of carnivores small intestine is shorter because they eat meat which can be digested easily.
Q. Plants absorb water from the soil. Explain how does the water reach the tree top?
Ans: The solution of mineral and water that move from root to leaves is called Sap. The two forces push and pull help to pump up the sap. The absorption of water by root produces a push. Force of pull is produced by transpiration in which plant loose water through the stomata in leaves.
Q. Write three significance of transpiration in plants?
As: (i) It creates suction force and helps in the ascent of sap.
(ii) It helps in evaporating excess amount of water.
(iii) It brings about opening and closing of stomata
Q. What are the end products of digestion of fat and protein in human beings ?
Ans: Fat : fatty acid + glycerol Protein : amino acids
Q. Name the enzyme present in saliva. Why is it important ?
Ans: The enzyme present in saliva is Salivary amylase.
It is important to breaks down starch to give sugar
Q. What is emulsification ?
Ans: The breakdown of large fat globules to smaller globules is called emulsification
Q. Name the substance that is oxidized in the body during respiration. Ans: Glucose
Q. Why are lungs divided into very small sac-like structures? Ans: Lungs are divided into very small sac-like structures to increase the surface area for exchange of gases
Ans: The solution of mineral and water that move from root to leaves is called Sap. The two forces push and pull help to pump up the sap. The absorption of water by root produces a push. Force of pull is produced by transpiration in which plant loose water through the stomata in leaves.
Q. Write three significance of transpiration in plants?
As: (i) It creates suction force and helps in the ascent of sap.
(ii) It helps in evaporating excess amount of water.
(iii) It brings about opening and closing of stomata
Q. What are the end products of digestion of fat and protein in human beings ?
Ans: Fat : fatty acid + glycerol Protein : amino acids
Q. Name the enzyme present in saliva. Why is it important ?
Ans: The enzyme present in saliva is Salivary amylase.
It is important to breaks down starch to give sugar
Q. What is emulsification ?
Ans: The breakdown of large fat globules to smaller globules is called emulsification
Q. Name the substance that is oxidized in the body during respiration. Ans: Glucose
Q. Why are lungs divided into very small sac-like structures? Ans: Lungs are divided into very small sac-like structures to increase the surface area for exchange of gases
Quiz: Life Processes - Nutrition, Respiration, and Excretion by Jsunil
Question 1: What is the process by which green plants make their own food using sunlight, carbon dioxide, and water? a) Respiration b) Excretion c) Photosynthesis d) Digestion
Solution 1: c) Photosynthesis
Question 2: Which of the following nutrients is responsible for growth and repair of body tissues?
a) Vitamins b) Minerals c) Proteins d) Carbohydrates
Solution 2: c) Proteins
Question 3: The process by which nutrients are taken up by the cells of an organism is called:
a) Digestion b) Absorption c) Respiration d) Assimilation
Solution 3: b) Absorption
Question 4: Which of the following is NOT a respiratory organ in humans?
a) Lungs b) Skin c) Kidneys d) Gills
Solution 4: c) Kidneys
Question 5: The breakdown of glucose to release energy in the presence of oxygen is known as:
a) Fermentation b) Photosynthesis c) Respiration d) Digestion
Solution 5: c) Respiration
Question 6: Which process helps in removing waste products like urea, excess salts, and water from the body?
a) Respiration b) Digestion c) Excretion d) Absorption
Solution 6: c) Excretion
Question 7: What is the main function of the stomata in plant leaves?
a) Absorption of water b) Photosynthesis c) Respiration d) Exchange of gases
Solution 7: d) Exchange of gases
Question 8: Which of the following is a mode of nutrition in which organisms obtain nutrients from dead and decaying matter?
a) Autotrophic nutrition b) Heterotrophic nutrition c) Saprophytic nutrition d) Parasitic nutrition
Solution 8: c) Saprophytic nutrition
Question 9: What is the process of breakdown of complex substances into simpler forms for absorption and utilization?
a) Assimilation b) Respiration c) Digestion d) Transpiration
Solution 9: c) Digestion
Question 10: What is the waste product produced by the breakdown of proteins in the body?
a) Carbon dioxide b) Water c) Urea d) Glucose
Solution 10: c) Urea
Opinion: Understanding the processes of nutrition, respiration, and excretion is crucial for comprehending how living organisms maintain their life functions. It's fascinating to learn how these processes differ in plants and animals and how they contribute to the overall survival of organisms.
Suggestions for Overcoming Problems: To enhance your understanding of these life processes, I recommend creating diagrams and flowcharts to visualize the steps involved. You could also conduct simple experiments to observe these processes in action. Additionally, discussing real-life examples and case studies can make the learning experience more relatable and enjoyable.
Feel free to reach out if you need further assistance or more questions related to this chapter!
Question 1: What is the process by which green plants make their own food using sunlight, carbon dioxide, and water? a) Respiration b) Excretion c) Photosynthesis d) Digestion
Solution 1: c) Photosynthesis
Question 2: Which of the following nutrients is responsible for growth and repair of body tissues?
a) Vitamins b) Minerals c) Proteins d) Carbohydrates
Solution 2: c) Proteins
Question 3: The process by which nutrients are taken up by the cells of an organism is called:
a) Digestion b) Absorption c) Respiration d) Assimilation
Solution 3: b) Absorption
Question 4: Which of the following is NOT a respiratory organ in humans?
a) Lungs b) Skin c) Kidneys d) Gills
Solution 4: c) Kidneys
Question 5: The breakdown of glucose to release energy in the presence of oxygen is known as:
a) Fermentation b) Photosynthesis c) Respiration d) Digestion
Solution 5: c) Respiration
Question 6: Which process helps in removing waste products like urea, excess salts, and water from the body?
a) Respiration b) Digestion c) Excretion d) Absorption
Solution 6: c) Excretion
Question 7: What is the main function of the stomata in plant leaves?
a) Absorption of water b) Photosynthesis c) Respiration d) Exchange of gases
Solution 7: d) Exchange of gases
Question 8: Which of the following is a mode of nutrition in which organisms obtain nutrients from dead and decaying matter?
a) Autotrophic nutrition b) Heterotrophic nutrition c) Saprophytic nutrition d) Parasitic nutrition
Solution 8: c) Saprophytic nutrition
Question 9: What is the process of breakdown of complex substances into simpler forms for absorption and utilization?
a) Assimilation b) Respiration c) Digestion d) Transpiration
Solution 9: c) Digestion
Question 10: What is the waste product produced by the breakdown of proteins in the body?
a) Carbon dioxide b) Water c) Urea d) Glucose
Solution 10: c) Urea
Opinion: Understanding the processes of nutrition, respiration, and excretion is crucial for comprehending how living organisms maintain their life functions. It's fascinating to learn how these processes differ in plants and animals and how they contribute to the overall survival of organisms.
Suggestions for Overcoming Problems: To enhance your understanding of these life processes, I recommend creating diagrams and flowcharts to visualize the steps involved. You could also conduct simple experiments to observe these processes in action. Additionally, discussing real-life examples and case studies can make the learning experience more relatable and enjoyable.
Feel free to reach out if you need further assistance or more questions related to this chapter!
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