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6. Life Processes Science class 10 in English Medium ncert book solutions Exercise NCERT Book
6. Life Processes Exercise NCERT Book – Complete NCERT Book Solutions for Class 10 Science (English Medium). Get all chapter explanations, extra questions, solved examples and additional practice questions for 6. Life Processes Exercise NCERT Book to help you master concepts and score higher.
6. Life Processes Science class 10 in English Medium ncert book solutions Exercise NCERT Book
NCERT Solutions for Class 10 Science play an important role in helping students understand the concepts of the chapter 6. Life Processes clearly. This chapter includes the topic Exercise NCERT Book, which is essential from both academic and examination point of view. The solutions provided here are prepared strictly according to the latest NCERT syllabus and follow the guidelines of CBSE to ensure accuracy and relevance. Each question is explained in a simple and student-friendly manner so that learners can grasp the concepts without confusion. These NCERT Solutions are useful for regular study, homework help, and exam preparation. All textbook questions are solved step by step to improve problem-solving skills and conceptual clarity. Students of Class 10 studying Science can use these solutions to revise important topics, understand difficult questions, and practise effectively before examinations. The chapter 6. Life Processes is explained in a structured way, making it easier for students to connect the theory with the topic Exercise NCERT Book. By studying these updated NCERT Solutions for Class 10 Science, students can build a strong foundation, boost their confidence, and score better marks in school and board exams.
6. Life Processes
Exercise NCERT Book
NCERT Solutions Exercise
Q1. The kidneys in human beings are a part of the system for
(a) nutrition.
(b) respiration.
(c) excretion.
(d) transportation.
Answer: (c) excretion.
Q2. The xylem in plants are responsible for
(a) transport of water.
(b) transport of food.
(c) transport of amino acids.
(d) transport of oxygen.
Answer: (a) transport of water.
Q3. The autotrophic mode of nutrition requires
(a) carbon dioxide and water.
(b) chlorophyll.
(c) sunlight.
(d) all of the above.
Answer: (d) all of the above.
Q4. The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
(a) cytoplasm.
(b) mitochondria.
(c) chloroplast.
(d) nucleus.
Answer:(b) mitochondria.
Q5. How are fats digested in our bodies? Where does this process take place?
Answer: Digestion of fat takes place in the small intestine of the alimentary canal. In the stomach, lipase acts on them and breaks down the fat. After this, the bile juice secreted by the liver in the small intestine emulsifies the fat. Pancreatic juice converts this fragmented fat into fatty acids and glycerol, thus the fat gets digested in the small intestine.
Q6. What is the role of saliva in the digestion of food?
Answer: The salivary glands present in the mouth secrete salivary juice. It contains salivary amylase enzyme. which converts starch into maltose sugar. For this reason, when you chew too many times, the food starts to taste sweet.
Q7. What are the necessary conditions for autotrophic nutrition and what are its by products?
Answer: Only green plants on earth are autotrophs which make their own food. For this some conditions are required such as:
(i) Adequate amount of water that the roots absorb.
(ii) sunlight and energy.
(iii) Carbon dioxide gas.
Q8. What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration.
Answer: Aerobic Respiration:
(i) It occurs in the presence of air.
(ii) Glucose is completely broken down.
(iii) Its end products are: CO2, water and energy.
(iv) Example: All higher organisms.
anaerobic respiration :
(i) It occurs in the absence of air.
(ii) Glucose is partially broken down.
(iii) Its end products: ethyl alcohol and CO2.
(iv) Example: yeast, tapeworm.
Q9. How are the alveoli designed to maximise the exchange of gases?
Answer: The alveoli due to their balloon-like shape facilitates the exchange of air and increases the surface area. When filled with air, these alveoli expand and turn into lungs.
Q10. What would be the consequences of a deficiency of haemoglobin in our bodies?
Answer: Hemoglobin carries oxygen in our body. If their quantity decreases in red blood cells, then the organs of the body do not get oxygen smoothly. Due to which the oxidation of food is not completely done, due to which there is also a decrease in energy and tiredness arises. Due to its deficiency, a person suffers from anemia.
Q11. Describe double circulation in human beings. Why is it necessary?
Answer: Blood circulates twice in human heart. Its called double circulation. For this reason, oxygenated and deoxygenated blood remains separate from each other. If this division is not done, then both types of blood will mix and the organs will not be able to get full oxygen.
Q12. What are the differences between the transport of materials in xylem and phloem?
Answer: Carrying of substances by xylem:
(i) In this water and mineral salts flow only in the upward direction.
(ii) Convection of water and salt takes place by pressure and transpiration by traction.
Carrying of substances by phloem:
(i) In this, the transport of food, amino acids is upward and downward in both the directions.
(ii) ATP energy is used in this.
Q13. Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
Answer: alveoli
(i) The alveoli carries pure and impure air.
(ii) The size of the alveoli is small.
(iii) The chemical in the alveolar body is released in the form of CO2 gas.
Renal :
(i) Nephron carries pure and impure blood air.
(ii) The nephrocytes are of large size.
(iii)Nitrogenous chemicals are released in the body in the form of urine.
See other sub-topics of this chapter:
1. Chapter Review 2. Text-book Questions 3. Exercise NCERT Book 4. Additional Questions With Solutions 5. Additional Questions With Solutions