11/21/2023 0 Comments Chapter life processes class 10![]() The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body, where it is utilised for obtaining energy, building up new tissues and the repair of old tissues. The inner living of the small intestine has numerous finger like projections called villi which increase the surface area for absorption. How is the small intestine designed to absorb digested food ?Īns :- Small intestine is the longest part of the alimentary canal which is fitted into a compact space because of extensive coiling. ![]() ( iv ) Maltose acts on maltose and form glucose. ( iii ) Lipase acts on facts and forms fatty acid and glycerol. ( ii ) Pepsin breaks down proteins into peptides and amino acids. ( i ) Ptyalin converts starch into maltose. What is the function of digestive enzymes ?Īns :- These enzymes convert the non – diffusible form of food into diffusible form. It is the most accepted theory.( ii ) Destroys the bacteria present in food. Transpiration pull theory: According to this theory the transpiration pull generated in the leaves pulls the water column in tracheids and vessels of xylem. Some theories were put forward in this aspect: When blood containing CO2 comes closer to lungs, CO2 is diffused back to lungs from blood.Īns. Water or sap is lifted from near the root tip to the shoot tip against the force of gravity, sometimes to the height of 100 m. As amount of CO2 increases in tissues after respiration, CO2 diffuses from tissues to blood and is transported back to lungs in the dissolved form in plasma. On coming closer to tissues, the molecule breaks allowing diffusion of free O2 into tissues. ![]() O2 combines with haemoglobin to from oxyhaemoglobin and is transported in this form from alveoli to tissues of body. After breathing, the O2 diffuses from alveoli into blood. Describe the exchange of gases in the lungs and tissues.Īns. This shows that CO2 is necessary for the process of photosynthesis.Ĥ. The other leaf had turned blue-black showing the formation of starch in sunlight. The leaf which was kept inside had not turned blue-black giving an indication that there was no formation of starch. Pluck the leaf which was kept inside the bottle and the one which was not and test for the presence of starch by putting Iodine solution on the leaf.Ħ. Place apparatus in sunlight for few hours.ĥ. Place a leaf of the plant in a wide-mouthed bottle having KOH solution inside and close the bottle.Ĥ. ![]() Place the plant in dark for 2-3 days for destarching.ģ. With the help of an activity show that CO2 is necessary for the process of photosynthesis.Ģ. Splitting of water molecule to form hydrogen and oxygen.ģ. Absorption of solar energy by chlorophyll.Ģ. Write the basic steps involved in the process of photosynthesis.Īns. (iv) Developing resistance against diseases.Ģ. (i) Acquiring energy for various metabolic processes of the body. Life Processes Class 10 Important Questionsġ. Have a great time learning with us! Class 10 Science Chapter 6 - Video Lecture NTSEguru helps you to boost your preparation with the most probable questions in accordance with the revised pattern of X board examination by our expert team of faculties. While preparing the chapter, one should give special attention to the diagrams and labelling and should absorb the conceptual aspects of the working of these life processes which include the role of different enzymes and the synchronization of different organs in order to work as an organ system and perform essential processes for the survival of life. The Life Processes class 10 Science chapter 6 is divided into four subparts each dealing with different system viz Nutrition, Respiration, Transportation and Excretion.
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