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Chapter 6 Life Processes - NCERT Solutions for Class 10 Biology CBSE - TopperLearning

All the solutions are prepared as well as verified by subject experts. If still there is any error, please notify us for further improvement. Social Science solutions in English Medium is already available to download. Hindi Medium solutions will be available for the academic session according to the latest CBSE Syllabus If your concept is not cleared then you can also watch the video to clear your concept. One few chapters are there which need extra practice.

For example, Light: Ncert solutions class 10th science chapter 6 model and Refraction and Electricity contains numerical problems. Numerical problems requires more practice including some extra questions from various books. For example, practicing Introduction to Trigonometry, chapter 8 needs more and more questions to be confident. Similarly, geometry portion also requires extra questions to practice.

There are total 25 chapters in Social Science Ncert solutions class 10th science chapter 6 model X. But who has opted Basic Maths in last year class 10 exams, they are now eligible to take Applied Mathematics in class But then again, simply mugging up the concepts given in the NCERT books a few weeks before the exams will help the students with. Students can now move ahead and solve the sample papers as well as previous year question papers to get an idea of the question paper pattern.

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Their inner walls wall towards opening are thicker and outer walls thinner. Function of guard cells: the guard cells regulate the opening and closing of Ncert Solutions Class 10th Science Chapter 6 Vis the stomatal pore. The guard cells swell when water flows into them causing the stomatal pore to open. Because inflow of water in guard cells causes the stretching and bulging of outer thin walls in converse shape.

This drags thick walls apart leading to opening of the pore. When there is outflow of water from guard cells, the outer thin walls come to their original position resulting in closure of stomatal pore. Major functions of stomata are: 1.

Stomata are essential for exchange of gases between the plants and the atmosphere-Oxygen and carbon dioxide. Normally, plants eliminate excessive water in the form of vapour through stomatal openings. The process is called transpiration. When there is shortage of water, stomatal openings get closed. Thus, reduce water lose.

Stomatal opening also close down during night. Thus, stomata regulate water lose from plants i. In desert, temperature is very high so stomata are closed to reduce the loss of water due to transpiration.

Therefore, desert plants are adapted to take up carbon dioxide at night when stomata are open. This CO2, taken up in night, prepare an intermediate compound. This intermediate compound is acted upon by the energy absorbed by the chlorophyll during the day to prepare food. Parasitic mode of nutrition: Some organisms derive their nutrition from other plants or animals hosts. This is known as parasitic mode of nutrition and such organisms are called parasites.

Some parasites are ectoparasite. They lived outside of the body of the host and derive their nutrition, the host such as cuscuta, leech, blood sucking mosquitoes etc. Some parasites live in the body of the host called endoparasites. For example: tapeworm, some fungi, etc. Paramoecium is unicellular animal which has a definite shape slipper � like. Paramoecium takes in food at a specific point through oral groove to mouth to gullet.

Food such as bacteria or very small organisms are moved to the specific spot ingestion point by the movement of cilia which are present all over the single-celled body. From the gullet a food vacuole is formed which starts circulating in the endoplasm. During circulation food is digested by enzymes. The digested food diffuses into the cytoplasm and undigested food is thrown out through the pore. Emulsification means a fine dispersion of one liquid in another.

In reference to digestion of food, breakdown of large fat globules in the small intestine by the bile juice from liver into fine smaller fat globules so to increase the efficiency of enzyme action, is called emulsification.

Differentiate between Inhalation and Exhalation. Answer 1: The blood brings CO2 form the body parts to be released into the alveoli, and the oxygen in the alveolar cavity is taken up in the alveolar blood vessels to be transported to all the cells in the body.

This forms the breathing cycle taking in air and given out air is rhythmic. But during breathing cycle, when air is taken in and let out. The lungs always contain a residual volume of air. So that there is sufficient time for oxygen to be absorbed and for the carbon dioxide to be released.

Thus, there is some gap in between inspiration taking in air and expiration given out air during breathing cycle but exchange of gases continuous. Question 2: What are the basic materials used during photosynthesis? Write chemical equation for photosynthesis. Answer 2: Materials used in photosynthesis are a Carbon Dioxide and b Water.

Chemical equation of photosynthesis. Question 1: Explain the process of nutrition in amoeba with the help of diagrams. Answer 1: Engulfing of Food: Amoeba obtains food by phagocytosis a type of holozoic nutrition.

Amoeba engulfs the food by forming pseudopodia. Two pseudopodia start growing from opposite sides of food particle. They completely encircle the food and their lips touch each other. The membranes of both the pseudopodia dissolve at the point of touching and the food is encaptured into the Amoeba one cell body in a bag known as food vacuole. Digestion of food: Inside the food vacuole, complex substances of the food are broken down into simpler ones.

The digested simple substances diffuse from food vacuole into cytoplasm. The remaining undigested material is moved near the surface of the single-celled body of amoeba and thrown out. Example of other unicellular organisms are Paramoecium and Euglena. Pseudopodia also help amoeba in locomotion.

Question 2: a Where are salivary glands located in human beings? State the role of saliva in the digestion of food. Answer 2: Salivary glands secrete their secretion called saliva in the mouth cavity.

There are three pairs of salivary glands located in the mouth. Saliva Amylase enzyme. Role Or Function of saliva: 1. Saliva moisten the food thus help in chewing of food by the teeth. Human saliva contains an enzyme called salivary amylase that converts starch into maltose a sugar. Saliva also helps in swolling and passage of food chewed food through the food canal which has soft lining.

Thus, it is necessary for them to separate oxygenated and de-oxygenated blood, so that their circulatory system is more efficient and can maintain their constant body temperature. Some finger like projection are present in the inner wall of small intestine.

Write their name. Why are they important? Which is the internal energy reserve in plants? Do the animals have the same energy reserve? Justify your answer. What are nutrients?

Explain the structure of stomata. Write functions of guard cells. Write major functions of stomata present in the epidermis.

Here you also get to know about the human nervous system, automatics and voluntary actions, exocrine and endocrine glands, etc. How do Organisms Reproduce chapter students get to learn different methods of reproduction in plants and animals and get aware of the various methods of birth control in humans. Some of the important topics discussed in this chapter are:. Heredity And Evolution chapter deals with the details related to heredity and evolution of different species.

Go through the major topics mentioned below:. Light Reflection and Refraction explains the concepts of reflection and refraction of light. Some important topics to learn from this chapter are:. The Human Eye and Colorful World chapter students get to know each and every detail of the human eye from its structure to its working.

Various defects of vision are also discussed here. It also explains atmospheric refraction and various phenomena related to it. Some major topics discussed in this chapter are:. Electricity chapter explains electric current, its applications and various effects related to it. Sources of Energy: Different forms of energy and their sources are discussed in this chapter.

Some of the main topics explained in this chapter are:. Our Environment chapter deals with various components of environment components and how human activities are affecting the environment.

Some of the main topics discussed in this chapter are:. Sustainable Management of Natural Resources chapter you get to know about the different natural resources, their advantages and conservation efforts.

Here main focus should be laid on the following concepts:. You can get them online at our website or else directly click on the quick links available on our page. By preparing with NCERT Solutions for science exams provide you various benefits like Important questions, solved and unsolved exercises for each concept, MCQ questions for class 10 board exams, One-word Answers, Assertions, Repetitive questions, previous papers, and many more that help students to score good grades in the preboard and board exams.

NCERT Science Solutions provide a detailed analysis of the curriculum and topics which helps class 10 students to study science in a simple way.

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