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Activity NCERT class 10 science chapter 6 Life processes - Studdy

Fascinating living creatures as small as microbe to well developed mammals perform almost the same physiological function but in varied form. We all have studied plants are autotrophs, the main energy source for all the animals directly or indirectly.

It also maintains the CO 2H 2 O constituent in atmosphere and many more benefits to be explained. In this chapter we will cover all the physiological functions like Nutrition, respiration, transportation, excretion in plants and animals.

We will come to know about the structure of leaf, stomata, nutrition in amoeba and human structure of the heart, respiratory and excretory. I am sure you will be aware and get knowledge about the functioning of different organs in the body with coordination and efficiency.

Why is diffusion insufficient to meet the oxygen requirements of multi-cellular organisms like humans? Diffusion is a slow process and is insufficient to meet the requirements of the multi- cellular organisms like humans.

Human beings are the multi- cellular organisms and have complex body structures. All the body cells do not contain direct contact with the environment, so they need the oxygen and oxygen requirement cannot fulfil by the diffusion process. So, in the multi- cellular organisms like human beings they have special types of tissues and the organs which helps them to meet the oxygen requirement of the body. What criteria do we use to decide whether something is alive?

All procesxes living organisms show various types of processes during their life. This shows that they are alive, not a non- living sudent or shows the assurance that they are not dead. When the organism is alive, it shows various types of processes like growth, movement, adaptations or the struggle for survival during the extreme stress conditions, respiration, reproduction, hormonal control and coordination processes, digestion, excretion and circulation.

These processes ensure that something is alive. What are outside raw materials used for by an organism? All the living organisms require energy solugions live and to maintain life. Plants and animals need various Ncert Solutions For Class 10th Ch 6 Life Processes Science Uk separate raw materials from the outside. Plants need some raw materials as they make their food by their. These raw materials are as follows Carbon dioxide:- carbon dioxide is taken up from the atmosphere through the stomata and releases oxygen.

Water:- plants take water from the soil through the roots to the leaves. And, the transportation of water from the soil to the roots and then to the root cortex and then finally transported to the leaves from the stem occurs through the xylem. Sunlight is obtained from the sun to make the food, necessary for the producers green plants.

Chlorophyll:- when organisms take carbon dioxide and water from the environment, they use sunlight and convert them into the glucose or oxygen and this is taken up by the chlorophyll. Animals feed on the plants as they are the producers plays shudent role in the food chain extends to the top carnivores. All animals take in food, water and oxygen from the outside according to their complexity and the needs. Food ncert solutions for class 10th ch 6 life processes science student the source of energy, oxygen for the breakdown of ncert solutions for class 10th ch 6 life processes science student to obtain energy, water is for the digestion and to maintain homeostasis that is internal temperature of the body.

What processes would you consider essential for maintaining life? All the living organisms perform various processes during their life for their adaptations and the survival is known as life processes. There are very essential processes that are considered studnt maintaining their lives like reproduction all organisms survives class the reproductiondigestion and absorption of food, respiration for breathing and exchange of gases in the respiratory tractbody fluids and the circulatory system, excretion process, for locomotion and movement, growth processes, neural control and coordination process, chemical coordination and integration process.

What are the differences between autotrophic ncert solutions for class 10th ch 6 life processes science student and heterotrophic nutrition?

All green plants, some bacteria and protists make their own food by ncert solutions for class 10th ch 6 life processes science student sunlight. Photosynthesis is the process in which when organisms take classs dioxide and water from the environment and by using sunlight they convert them into the glucose or oxygen and is taken by the chlorophyll, these organisms are known as phototrophs.

The equation of photosynthesis flass as ncert solutions for class 10th ch 6 life Ncert Solutions For Class 10th Ch 6 Life Processes Science College processes science student Chemoautotrophic nutrition: The process of making Ncert Solutions For Class 10th Ch 6 Life Processes Science School organic food from the energy released by chemical reactions known as chemoautotrophic nutrition.

Some bacteria make organic food by the energy that is released during the oxidation of inorganic material with the help of some chemotrophs. Some nitrifying bacteria like Nitrosomonas and Nitrobacter are chemotrophs, which helps in making food from inorganic material. So taking of organic food that is made by autotrophs is known as heterotrophic nutrition. Saprotrophic nutrition: it is also known as absorptive nutrition, which absorb fluid in the form of food through their body surface is saprotrophic nutrition.

Holotrophic nutrition: The process of taking solid or fluid form of food proesses mouth is known as holotrophic or ingestive nutrition.

In this all invertebrates or vertebrate feeds on plants or animals by breaking the larger molecules into smaller molecules with the help of digestive enzymes and then they are absorbed by the their cells. Mixotrophic nutrition: Some organisms carry both types autotrophic or saprotrophic nutrition at the same time is known as mixotrophic nutrition.

Parasitic nutrition: When the parasites obtain their food material from the body of the host is known as parasitic nutrition. Where do plants get each of the raw materials required for photosynthesis? Sience is the anabolic process by which green plants autotrophs synthesize their own food in the form of glucose or carbohydrates from the simple inorganic compounds like carbon dioxide and water.

So, this process is the transformation of light energy into the chemical energy to make their food in their own food,i. So, the following raw materials are required like carbon dioxide, water, chlorophyll and sunlight to make complex organic material from the simple inorganic material. What is the role of the acid in our stomach? Hydrochloric acid is present in the gastric juice secreted by the gastric gland which helps in the breakdown of the food.

When the food enters in the stomach, contraction and expansion of muscles of the wall of stomach brings churning movement which leads to the mixing of the food with the help of gastric juice mixture of hydrochloric acid, pepsinogen, prorennin, lipase and mucus secreted by gastric glands. Hydrochloric acid helps in to disinfect the food by killing of bacteria, stops the action of the salivary amylase.

It converts the pepsinogen to pepsin in the active form and convert prorenin with the addition of HCL gives the end product Rennin. It produces appropriate, i. It moistens the food and helps in the breakdown of the larger food molecules; also denatures the many food proteins which increases the exposure of the peptide bond to the pepsin.

What is the function of digestive enzymes? Enzymes are the organic compounds produced by the living cells to carry forward the biochemical reactions in and outside the cells of the organisms. Clsss chemical reactions occurs by the enzymes known as catalysis and the substances by which these necrt reactions occurs known as catalytic compounds. Enzymes are of two types- intracellular enzymes or Extracellular enzymes.

Intracellular enzymes remain inside the cell also known as endoenzymes. Extracellular enzymes leaves the cells and functions outside the cell also known ncerg exoenzymes. Extracellular enzymes contain digestive enzymes which help in the breaking down of the food.

Digestive enzymes like- salivary amylase or ptyalin secreted by salivary gland in the oral cavity, pepsin activated from pepsinogen by HCLrennin activated from prorenin by HCLgastric lipase all three produced by the gastric glands in the stomach, pancreatic lipase, pancreatic amylase, DNase, RNase, trypsin activated from trypsinogen by enterokinasechymotrypsin activated from chymotrypsinogen by Ncert Solutions For Class 10th Ch 6 Life Processes Science App trypsin secreted from pancreas in the small intestine, lysozyme in tears, intestinal amylase, maltase, isomaltase, lactase, dipeptidase, intestinal lipase, nucleotidase, nucleosidase, enterokinase they are produced from the intestinal lire in the small intestine.

How is the small intestine designed to absorb digested food? Small intestine is a narrow tube, 6m long in the adults, is the longest part of the alimentary canal and comprises of three parts duodenum, jejunum and ileum. Duodenum is C- shaped, 25 cm long and extended from the stomach. It receives the hepatopancreatic duct formed by the combination of bile duct and pancreatic duct. Jejunum is the middle portion of the small intestine extends from duodenum and 2.

Ncert solutions for class 10th ch 6 life processes science student forms the lower part of the small intestine and 3. The mucosa ncdrt the small intestinal part is raised into millions of tiny microscopic finger - like projection called villi. Villi contains blood vessels and the lacteals, they receives the product of digestion after the absorption. The free surface of the cells which covers the villi bear numerous microvilli.

They both villi and microvilli increases the absorptive surface for the digestion of food. What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?

A sciejce ncert solutions for class 10th ch 6 life processes science student have advantage with regard to obtain oxygen for respiration over the aquatic organisms because of the amount of oxygen present in the environment.

Terrestrial organisms have more amount of oxygen than the aquatic ones cause the terrestrial organisms are in direct contact of oxygen for the respiration but the aquatic organisms respire within the water habitat with the oxygen lief in the dor. What are the different ways in which glucose is oxidised to provide energy in various organisms? There are two different ways in which glucose breaks down to provide energy in the various organisms.

Glucose or carbohydrate present in the organisms in the form of food and they oxidize to give energy to the organism. Large glucose molecule breaks down into the smaller ones as seen in the aerobic and the anaerobic 10thh. Two ways are following- aerobic and anaerobic respiration. Aerobic respiration: Glucose get break down into the carbon dioxide, water and energy is released in the form of ATP. It yields more energy available in glucose.

It occurs in the mitochondrial matrix and release more energy than anaerobic respiration. Anaerobic respiration: Lower organisms like bacteria and yeast have this type of respiration. In bacteria, glucose breaks down into lactic acid and energy without the use of oxygen and without the production of carbon dioxide.

It occurs in the cytoplasm and releases less energy. How is oxygen and carbon dioxide transported in human beings? Exchange of the gases � oxygen and carbon dioxide, take place in various ways in the human beings. And, another form is oxyhaemoglobin, about 97 percent of oxygen diffuses from plasma into the red blood cells and it loosely joins with iron of haemoglobin to form oxyhaemoglobin and then it combines with one oxygen molecule.

Carbon dioxide transport is carried by the blood in the three forms:- physical solution, bicarbonate ions and carbaminohemoglobin. Carbon dioxide combines with water to form carbonic acid by the carbonic anhydrase enzyme, then this acid splits into bicarbonate and hydrogen ion. And, they are joined by the sodium and potassium to maintain p H of the blood. How are the lungs designed in human beings to maximise the area for exchange of gases?

Lungs are the two pairs of organ lies in the thoracic cavity on the sides of the heart. The trachea divides into two tubes- major or primary bronchi. Major bronchus enters the right lung and second one enter into the left lung. Then bronchus divides into secondary bronchi further extends into three lobes of right lung and subdivides into small tertiary bronchi and finally they divided into smaller bronchioles wall consists of epithelium.

Mammals and birds constantly need oxygen to get energy to maintain their body temperature constant. Xylem consists of vessels, tracheids and other xylem tissues. RD Sharma Class 12 Solutions. Many plant waste products are stored in cellular vacuoles. Understand the difference between living things and non-living things. Phloem transports food materials from the leaves to different parts of the plant body.

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