Since the amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Therefore, unlike aquatic animals, terrestrial animals do not have to show various adaptations for betterRead more
Since the amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Therefore, unlike aquatic animals, terrestrial animals do not have to show various adaptations for better gaseous exchange.
The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream. From the blood stream, the absorbed food is delRead more
The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream. From the blood stream, the absorbed food is delivered to each and every cell of the body.
Digestive enzymes such as amylase, lipase, pepsin, trypsin, etc. help in the breaking down of complex food particles into simple ones. These simple particles can be easily absorbed by the blood and thus transported to all the cells of the body. For more answers visit to website: https://www.tiwariacRead more
Digestive enzymes such as amylase, lipase, pepsin, trypsin, etc. help in the breaking down of complex food particles into simple ones. These simple particles can be easily absorbed by the blood and thus transported to all the cells of the body.
Role of the acid (HCl) in our stomach: • Kills germs present in the food. • Makes the food acidic, so that pepsin can digest protein. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Role of the acid (HCl) in our stomach:
• Kills germs present in the food.
• Makes the food acidic, so that pepsin can digest protein.
The following raw materials are required for photosynthesis: • The raw material CO2 enters from the atmosphere through stomata. • Water is absorbed from the soil by the plant roots. • Sunlight, an important component to manufacture food, is absorbed by the chlorophyll and other green parts of the plRead more
The following raw materials are required for photosynthesis:
• The raw material CO2 enters from the atmosphere through stomata.
• Water is absorbed from the soil by the plant roots.
• Sunlight, an important component to manufacture food, is absorbed by the chlorophyll and other green parts of the plants.
Autotrophic nutrition: 1. Food is synthesised from simple inorganic raw materials such as CO2 and water. 2. Presence of green pigment (chlorophyll) is necessary. 3. Food is generally prepared during day time. 4. All green plants and some bacteria have this type of nutrition. Heterotrophic nutrition:Read more
Autotrophic nutrition:
1. Food is synthesised from simple inorganic raw materials such as CO2 and water.
2. Presence of green pigment (chlorophyll) is necessary.
3. Food is generally prepared during day time.
4. All green plants and some bacteria have this type of nutrition.
Heterotrophic nutrition:
1. Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes.
2. No pigment is required in this type of nutrition.
3. Food can be prepared at all times.
4. All animals and fungi have this type of nutrition.
Life processes such as nutrition, respiration, transportation, excretion, etc. are essential for maintaining life. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Life processes such as nutrition, respiration, transportation, excretion, etc. are essential for maintaining life.
An organism uses outside raw materials mostly in the form of food (Since life on earth depends on carbon based molecules, most of these food sources are also carbon-based) and oxygen. The raw materials required by an organism can be quite varied depending on the complexity of the organism and its enRead more
An organism uses outside raw materials mostly in the form of food (Since life on earth depends on carbon based molecules, most of these food sources are also carbon-based) and oxygen. The raw materials required by an organism can be quite varied depending on the complexity of the organism and its environment.
Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of molecular movement inside the organisms used to decide wheRead more
Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of molecular movement inside the organisms used to decide whether something is alive or not.
Alveoli: 1. Alveoli are tiny balloon-like structures present inside the lungs. 2. The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries. 3. The exchange of O2 and CO2 takes place between the blood of the capillaries that surround the alveoli and the gaRead more
Alveoli:
1. Alveoli are tiny balloon-like structures present inside the lungs.
2. The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries.
3. The exchange of O2 and CO2 takes place between the blood of the capillaries that surround the alveoli and the gases present in the alveoli.
Alveoli are the site of gaseous exchange.
Nephron:
1. Nephrons are tubular structures present inside the kidneys.
2. Nephrons are made of glomerulus, bowman’s capsule, and a long renal tube. It also contains a cluster of thin walled capillaries.
3. The blood enters the kidneys through the renal artery which branches into many capillaries in the glomerulus. The water and solute are transferred to the nephron at Bowman’s capsule. Then the filtrate moves through the proximal tubule, distal tubule and collecting duct. The collecting duct collects the urine from many nephrons and passes it to the ureter. During the flow of filtrate, some substances such as glucose, amino acids, and water are selectively reabsorbed.
Nephrons are the basic filtration unit.
What advantage over an aquatic organism does a terrestrial organism have with regard to obtaining oxygen for respiration?
Since the amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Therefore, unlike aquatic animals, terrestrial animals do not have to show various adaptations for betterRead more
Since the amount of dissolved oxygen is fairly low compared to the amount of oxygen in the air, the rate of breathing in aquatic organisms is much faster than that seen in terrestrial organisms. Therefore, unlike aquatic animals, terrestrial animals do not have to show various adaptations for better gaseous exchange.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
How is the small intestine designed to absorb digested food?
The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream. From the blood stream, the absorbed food is delRead more
The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the blood stream. From the blood stream, the absorbed food is delivered to each and every cell of the body.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What is the function of digestive enzymes?
Digestive enzymes such as amylase, lipase, pepsin, trypsin, etc. help in the breaking down of complex food particles into simple ones. These simple particles can be easily absorbed by the blood and thus transported to all the cells of the body. For more answers visit to website: https://www.tiwariacRead more
Digestive enzymes such as amylase, lipase, pepsin, trypsin, etc. help in the breaking down of complex food particles into simple ones. These simple particles can be easily absorbed by the blood and thus transported to all the cells of the body.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What is the role of the acid in our stomach?
Role of the acid (HCl) in our stomach: • Kills germs present in the food. • Makes the food acidic, so that pepsin can digest protein. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Role of the acid (HCl) in our stomach:
• Kills germs present in the food.
• Makes the food acidic, so that pepsin can digest protein.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Where do plants get each of the raw materials required for photosynthesis?
The following raw materials are required for photosynthesis: • The raw material CO2 enters from the atmosphere through stomata. • Water is absorbed from the soil by the plant roots. • Sunlight, an important component to manufacture food, is absorbed by the chlorophyll and other green parts of the plRead more
The following raw materials are required for photosynthesis:
• The raw material CO2 enters from the atmosphere through stomata.
• Water is absorbed from the soil by the plant roots.
• Sunlight, an important component to manufacture food, is absorbed by the chlorophyll and other green parts of the plants.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What are the differences between autotrophic nutrition and heterotrophic? nutrition?
Autotrophic nutrition: 1. Food is synthesised from simple inorganic raw materials such as CO2 and water. 2. Presence of green pigment (chlorophyll) is necessary. 3. Food is generally prepared during day time. 4. All green plants and some bacteria have this type of nutrition. Heterotrophic nutrition:Read more
Autotrophic nutrition:
See less1. Food is synthesised from simple inorganic raw materials such as CO2 and water.
2. Presence of green pigment (chlorophyll) is necessary.
3. Food is generally prepared during day time.
4. All green plants and some bacteria have this type of nutrition.
Heterotrophic nutrition:
1. Food is obtained directly or indirectly from autotrophs. This food is broken down with the help of enzymes.
2. No pigment is required in this type of nutrition.
3. Food can be prepared at all times.
4. All animals and fungi have this type of nutrition.
What processes would you consider essential for maintaining life?
Life processes such as nutrition, respiration, transportation, excretion, etc. are essential for maintaining life. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Life processes such as nutrition, respiration, transportation, excretion, etc. are essential for maintaining life.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What are outside raw materials used for by an organism?
An organism uses outside raw materials mostly in the form of food (Since life on earth depends on carbon based molecules, most of these food sources are also carbon-based) and oxygen. The raw materials required by an organism can be quite varied depending on the complexity of the organism and its enRead more
An organism uses outside raw materials mostly in the form of food (Since life on earth depends on carbon based molecules, most of these food sources are also carbon-based) and oxygen. The raw materials required by an organism can be quite varied depending on the complexity of the organism and its environment.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What criteria do we use to decide whether something is alive?
Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of molecular movement inside the organisms used to decide wheRead more
Any visible movement such as walking, breathing, or growing is generally used to decide whether something is alive or not. However, a living organism can also have movements, which are not visible to the naked eye. Therefore, the presence of molecular movement inside the organisms used to decide whether something is alive or not.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
Alveoli: 1. Alveoli are tiny balloon-like structures present inside the lungs. 2. The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries. 3. The exchange of O2 and CO2 takes place between the blood of the capillaries that surround the alveoli and the gaRead more
Alveoli:
See less1. Alveoli are tiny balloon-like structures present inside the lungs.
2. The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries.
3. The exchange of O2 and CO2 takes place between the blood of the capillaries that surround the alveoli and the gases present in the alveoli.
Alveoli are the site of gaseous exchange.
Nephron:
1. Nephrons are tubular structures present inside the kidneys.
2. Nephrons are made of glomerulus, bowman’s capsule, and a long renal tube. It also contains a cluster of thin walled capillaries.
3. The blood enters the kidneys through the renal artery which branches into many capillaries in the glomerulus. The water and solute are transferred to the nephron at Bowman’s capsule. Then the filtrate moves through the proximal tubule, distal tubule and collecting duct. The collecting duct collects the urine from many nephrons and passes it to the ureter. During the flow of filtrate, some substances such as glucose, amino acids, and water are selectively reabsorbed.
Nephrons are the basic filtration unit.