The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body. Some other factors such as habitat of an organism and hormone such as Antidiuretic hormone (ADH) also regulates the amount of urine produced. For more answers visit to website: https://www.tiRead more
The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body. Some other factors such as habitat of an organism and hormone such as Antidiuretic hormone (ADH) also regulates the amount of urine produced.
Plants use completely different strategies for excretion than those of animals. They can get rid of excess water by transpiration. For other wastes, plants use the fact that many of their tissues consist of dead cells, and that they can even lose some parts such as leaves. Many plant waste productsRead more
Plants use completely different strategies for excretion than those of animals. They can get rid of excess water by transpiration. For other wastes, plants use the fact that many of their tissues consist of dead cells, and that they can even lose some parts such as leaves. Many plant waste products are stored in cellular vacuoles. Waste products may be stored in leaves that fall off. Other waste products are stored as resins and gums, especially in old xylem. Plants also excrete some waste substances into the soil around them.
Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 1-1.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule. Functioning of a nephron: Functioning of a nephron: • The blood enters the kidRead more
Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 1-1.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule.
Functioning of a nephron:
Functioning of a nephron:
• The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
• The water and solute are transferred to the nephron at Bowman’s capsule.
• In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
• The filtrate then moves down into the loop of Henle, where more water is absorbed.
• From here, the filtrate moves upwards into the
distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
• The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.
In highly organised plants, there are two different types of conducting tissues − xylem and phloem. • Xylem conducts water and minerals obtained from the soil (via roots) to the rest of the plant. • Phloem transports amino acids and food materials from the leaves to different parts of the plant bodyRead more
In highly organised plants, there are two different types of conducting tissues − xylem and phloem.
• Xylem conducts water and minerals obtained from the soil (via roots) to the rest of the plant.
• Phloem transports amino acids and food materials from the leaves to different parts of the plant body.
The main components of the transport system in human beings are the heart, blood, and blood vessels. • Heart pumps oxygenated blood throughout the body. It receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation. • Blood is a fluid connectiveRead more
The main components of the transport system in human beings are the heart, blood, and blood vessels.
• Heart pumps oxygenated blood throughout the body. It receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation.
• Blood is a fluid connective tissue, it helps in the transport of oxygen, nutrients, CO2, and nitrogenous wastes.
• Blood vessels (arteries, veins, and capillaries) carry blood either away from the heart to various organs or from various organs back to the heart.
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.
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.
How is the amount of urine produced regulated?
The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body. Some other factors such as habitat of an organism and hormone such as Antidiuretic hormone (ADH) also regulates the amount of urine produced. For more answers visit to website: https://www.tiRead more
The amount of urine produced depends on the amount of excess water and dissolved wastes present in the body. Some other factors such as habitat of an organism and hormone such as Antidiuretic hormone (ADH) also regulates the amount of urine produced.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What are the methods used by plants to get rid of excretory products?
Plants use completely different strategies for excretion than those of animals. They can get rid of excess water by transpiration. For other wastes, plants use the fact that many of their tissues consist of dead cells, and that they can even lose some parts such as leaves. Many plant waste productsRead more
Plants use completely different strategies for excretion than those of animals. They can get rid of excess water by transpiration. For other wastes, plants use the fact that many of their tissues consist of dead cells, and that they can even lose some parts such as leaves. Many plant waste products are stored in cellular vacuoles. Waste products may be stored in leaves that fall off. Other waste products are stored as resins and gums, especially in old xylem. Plants also excrete some waste substances into the soil around them.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
Describe the structure and functioning of nephrons.
Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 1-1.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule. Functioning of a nephron: Functioning of a nephron: • The blood enters the kidRead more
Nephrons are the basic filtering units of kidneys. Each kidney possesses large number of nephrons, approximately 1-1.5 million. The main components of the nephron are glomerulus, Bowman’s capsule, and a long renal tubule.
Functioning of a nephron:
Functioning of a nephron:
• The blood enters the kidney through the renal artery, which branches into many capillaries associated with glomerulus.
• The water and solute are transferred to the nephron at Bowman’s capsule.
• In the proximal tubule, some substances such as amino acids, glucose, and salts are selectively reabsorbed and unwanted molecules are added in the urine.
• The filtrate then moves down into the loop of Henle, where more water is absorbed.
• From here, the filtrate moves upwards into the
distal tubule and finally to the collecting duct. Collecting duct collects urine from many nephrons.
• The urine formed in each kidney enters a long tube called ureter. From ureter, it gets transported to the urinary bladder and then into the urethra.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What are the components of the transport system in highly organised plants?
In highly organised plants, there are two different types of conducting tissues − xylem and phloem. • Xylem conducts water and minerals obtained from the soil (via roots) to the rest of the plant. • Phloem transports amino acids and food materials from the leaves to different parts of the plant bodyRead more
In highly organised plants, there are two different types of conducting tissues − xylem and phloem.
• Xylem conducts water and minerals obtained from the soil (via roots) to the rest of the plant.
• Phloem transports amino acids and food materials from the leaves to different parts of the plant body.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
What are the components of the transport system in human beings? What are the functions of these components?
The main components of the transport system in human beings are the heart, blood, and blood vessels. • Heart pumps oxygenated blood throughout the body. It receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation. • Blood is a fluid connectiveRead more
The main components of the transport system in human beings are the heart, blood, and blood vessels.
• Heart pumps oxygenated blood throughout the body. It receives deoxygenated blood from the various body parts and sends this impure blood to the lungs for oxygenation.
• Blood is a fluid connective tissue, it helps in the transport of oxygen, nutrients, CO2, and nitrogenous wastes.
• Blood vessels (arteries, veins, and capillaries) carry blood either away from the heart to various organs or from various organs back to the heart.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-10/science/chapter-6/
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 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.