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The 6th chapter of Class 10 Science is of Biology and it deals with different processes of life such as Respiration, Transpiration, Nutrition, Excretion, and much more in plants and human beings. The chapter consists of 34 different questions and from these questions, some are objective while others are long-answer type questions. Students can use these questions and get their solutions from our official site to make sure that they are able to score better marks than the others in their examinations.
We are pretty sure that this is going to help a lot. In this chapter, students will get to have a deeper understanding of topics such as the nervous system in the body of human beings.
Also, they will get to know about the anatomy of the human brain along with the coordination of hormones in animals. The chapter includes about 12 different questions and there are some objective-type options for the students to choose from as well. Go and refer to the NCERT solutions for class 10 science right now to get the best results in your exams. In the 8th chapter of the book, we provide some explanation about the process of reproduction that takes place in single-celled organisms and multi-celled organisms as well.
The chapter explains the different types of reproduction such as sexual and asexual. Also, there are details about the reproductive systems in plants as well as animals. There are about 11 questions in this chapter and there are some exercises as well. So, students will get to learn a lot from these chapters in the best way. This chapter in the science book deals with the passing of genes between different generations.
Also, the chapter provides information on the process of sex determination. The chapter has details on the entire concept of Evolution with the help of the Charles Darwin theory. Students can get familiar with the concepts and then attempt to solve the questions that are provided in the chapter. There are about 12 questions in it along with end exercises as well.
After reading this chapter, the students will get to know about the different phenomena that the light has to go through. Refraction Ncert Solutions For Class 10th Science Chapter 3 Days and reflection are the important topics in this chapter and there are several explanations to these the laws of refraction and reflection.
There are also some mathematical elements in the chapter that are explained well in our solutions. The chapter includes 17 different questions along with an end exercise for the students. The first 5 questions included in the chapter tend to be objective. This is a chapter that will primarily focus on the human eye structure as well as the various functions that are included in every single part of the eye.
Also, there are some explanations regarding the different eye problems that people might have in their life. There are about 13 questions present in the chapter. Also, there are diagrams that students need to study so that they can score better marks in their exams. This chapter is really important as all the answers are based on the details provided in the chapter.
For this chapter, students will dive into the different concepts of electric current. They will also get to learn important terms such as potential difference, resistance, circuit diagrams, and much more. Also, students will know about the different effects of heating on electrical power and current.
Not to mention that students will get to understand the different symbols used in a circuit diagram. Also, there are some details about the current flow that occurs in a particular circuit and much more. The 13th chapter of Class 10 science deals with important topics such as magnetic fields and different field lines. Also, students can learn about hard rules, the force on a particular type of current conductor, magnetic fields, and circuits.
The chapter is meant to provide an insight into topics such as generators, motors, electromagnetic inductions, and much more. There are 18 questions in the chapter along with a few objective types as well.
In the exercises for this chapter, students will also find several numerical solutions. Students will know about different energy forms that are available to mankind such as non-conventional and conventional forms of energy. There are comparisons between different energy forms and the explanations are provided in the chapter.
Also, students will get to know the importance of using several non-conventional types of energy rather than the conventional options. There are 10 questions in this chapter and some of them are objective types.
There are several ecosystems working in the environment and students will get to know about keeping it stable and balanced. Class 10 Science Chapter 6 solution Hindi mediums are created by our in-house experts keeping the understanding ability of all types of candidates in mind. NCERT textbooks and solutions are built to give a strong foundation to every concept. Upon visiting the website, you have to register on the website with your phone number and email address.
Answer: Within the lungs, the air passage divides into smaller and smaller tubes, called bronchi which in turn form bronchioles. The bronchioles terminate in balloon-like structures, called alveoli. The alveoli present in the lungs provide maximum surface for exchange of gases. The alveoli have vary thin walls and contain an extensive network of blood vessels to facilitate exchange of gases. Question 1 What are the components of the transport system in human beings?
What are the functions of these components? Answer: The transport system circulatory system in human beings mainly consists of heart, blood and blood vessels. It receives purified blood from lungs and pumps it around the body.
It also protects the body from diseases and regulates the body temperature. Question 2 Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds? Answer: Separation of oxygenated and deoxygenated blood allows good supply of oxygen to the body. This system is useful in animals that have high energy requirement.
Mammals and birds constantly need oxygen to get energy to maintain their body temperature constant. Question 3 What are the components of the transport system in highly organised plants? Answer: In highly organised plants there are two conducting tissues xylem and phloem. Xylem consists of vessels, tracheids and other xylem tissues. The interconnected vessels and tracheids form a continuous system of water conducting channels reaching all parts of the plant. Xylem carries water and minerals.
Phloem conducts soluble products of photosynthesis from leaves to different parts of the plant body. Question 4 How are water and minerals transport in plants? The root hair are directly in contact with the film of water in between the soil particles. Water and dissolved minerals get into the root hair by the process of diffusion. The water and minerals absorbed by the root hair from the soil pass from cell to cell by osmosis through the epidermis, root cortex, endodermis and reach the root xylem.
The xylem vessels of the root of the plant are connected to the xylem vessels of its stem. Therefore the water containing dissolved minerals enters the root xylem vessels into stem xylem vessels. The xylem vessels of the stem branch into the leaves of the plants.
So, the water and minerals carried by the xylem vessels in the stem reach the leaves through the branched xylem vessels which enter from the petiole stalk of the leaf into each and every part of the leaf.
Thus the water and minerals from the soil reach through the root and stem to the leaves of the plants. Evaporation of water molecules from the cells of a leaf creates a suction which pulls water from the xylem cells of roots.
The loss of water in the form of vapour from the aerial parts of the plant is known as transpiration. Question 5 How is food transported in plants? Answer: The movement of food in phloem or translocation takes place by utilizing energy. The sugar food made in leaves is loaded into the sieve tubes of phloem tissue by using energy from ATR Water now enters the sieve tubes containing sugar by the process of osmosis due to which the pressure in the phloem tissue rises. This high pressure produced in the phloem tissue moves the food to all parts of the plant having less pressure in their tissues.
This allows the phloem to transport food according to the needs of the plant. Question 1 Describe the structure and functions of nephrons. Answer: Structure of nephron : Each nephron is composed of two parts. One end of the glomerulus is attached to the renal artery which brings the impure blood containing the urea waste into it.
These impurities are filtered. The other part of the nephron is coiled. In this part, the substances like sugar glucose , amino acid, ions and excess water which are required by the body, are reabsorbed.
The substance remained in the nephron is mainly urine containing dissolved urea in water which is expelled from the body through urethra from time to time. The filtrate passes into the tubular part of the nephron. This filtrate contains glucose, amino acids, urea, uric acid, salts and water. Reabsorption : As the filtrate flows along the tubule, useful substances such as glucose, amino acids, salts and water are selectively reabsorbed into the blood by capillaries surrounding the nephron tubule.
Urine : The filtrate which remained after reabsorption is called urine. Urine contains dissolved nitrogenous waste like urea and uric acid, excess salts and water. Urine is collected from nephrons to carry it to the ureter from where it passes into urinary bladder. Question 2 What are the methods used by plants to get rid of excretory products?
Answer: i The plants get rid of gaseous products-through stomata in leaves and lenticels in stems. Question 3 How is the amount of urine produced regulated? Answer: The amount of urine is regulated by kidney. It depends on the quantity of excess water and wastes dissolved in water. When water is less in quantity in the body tissues, a small quantity of concentrate urine is excreted. When there is Ncert Solutions For Class 10th Science Chapter 7 Word more quantity of dissolved wastes in the body, more quantity of water is required to excrete them.
Therefore, the amount of urine produced increases. Question 1 The kidneys in human beings are a part of the system for i nutrition ii respiration iii excretion iv transportation Answer: iii Excretion. Question 2 The xylem in plants are responsible for i transport of water ii transport of food iii transport of amino acids iv transport of oxygen Answer: i Transport of water.
Question 3 The autotrophic mode of nutrition requires i carbon dioxide and water ii chlorophyll iii sunlight iv all of the above Answer: iv All of the above.
Question 4 The breakdown of pyruvate to give carbon dioxide, water and energy takes place in i cytoplasm ii mitochondria iii chloroplast iv nucleus Answer: ii Mitochondria. Question 5 How are fats digested in our bodies? Where does this process take place? Answer: Digestion of fats takes place in the small intestine. Bile juice secreted by the liver poured in the intestine along with pancreatic juice.
The bile salts present in the bile juice emulsify fhe large globules of fats. Therefore, by enulsification large globules break down into fine globules to provide larger surface area to act upon by the enzymes. Lipase enzyme present in the pancreatic juice causes break down of emulsified fats. Glands present in the wall of small intestine secrete intestinal juice which contains lipase enzyme that converts fats into fatty acids and glycerol.
Question 6 What is the role of saliva in Ncert Solutions For Class 10th Science Chapter 11 Student the digestion of food? Answer: Saliva contains salivary amylase enzyme that breaks down starch into sugars like maltose. Saliva keeps the mouth cavity clean and moistens the food that help in chewing and breaking down the big pieces of food into smaller ones. Question 7 What are the necessary conditions or autotrophic nutrition and what are its by-products? Answer: Necessary conditions for autotrophic nutrition : i Presence of chlorophyll in the living cells.
By-product of auto tropic nutrition is oxygen. Question 8 What are the differences between aerobic and anaerobic respiration? Name some organisms that use the anaerobic mode of respiration. Question 9 How are the alveoli designed to maximise the exchange of gases?
Answer: i The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gases between blood and the air filled in alveoli. Hence, provide maximum surface for exchange of gases.
Question 10 What would be the consequences of a deficiency of haemoglobin in our bodies? Answer: Due to the deficiency of haemoglobin in blood, its oxygen carrying capacity decreases. As a result the production of energy by oxidation will become slower. Therefore, one would fall sick and would feel fatigue most of the time.
Question 11 Describe double circulation in human beings. Why is it necessary? Answer: In our heart blood enters twice and also pumped out twice from the heart. The deoxygenated blood from the body is brought to the right atrium through vena cava from where it is sent to right ventricle.
From right ventricle, the blood is pumped to the lungs for oxygenation through pulmonary artery. The oxygenated blood from lungs again enters the left atrium of the heart through pulmonary veins. From left atrium it is send to left ventricle, from where this oxygenated blood is pumped to different parts of body through the arteries.
Necessity of double circulation: The right side and the left side of the human heart are useful to keep deoxygenated and oxygenated blood from mixing. This type of separation of oxygenated and deoxygenated blood ensures a highly efficient supply of oxygen to the body. This is useful in case of humans who constantly need energy to maintain their body Ncert Solutions For Class 10th Science Chapter 6 Series temperature.
Question 12 What are the differences between the transport of materials in xylem and phloem? Question 13 Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning. Basic concept of nutrition, respiration, transport and excretion in plants and animals. Question 1 How are fats digested in our bodies?
Solution: The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose. The food coming from the stomach is acidic and has to be made alkaline for the pancreatic enzymes to act. Bile juice from the liver accomplishes this in addition to acting on fats. Fats are present in the intestine in the form of large globules, which make it difficult for enzymes to act on them.
Bile salts break them down into smaller globules increasing the efficiency of enzyme action. The pancreas secretes pancreatic juice, which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats. The walls of the small intestine contain glands, which secrete intestinal juice.
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