Digestion of fats takes place in the small intestine. Fats entering in intestine are in the form of large globules. Bile juice breaks down these large globules into small, fine globules by the process known as emulsification. afterwards fat digesting enzyme lipase present in the pancreatic juice andRead more
Digestion of fats takes place in the small intestine.
Fats entering in intestine are in the form of large globules. Bile juice breaks down these large globules into small, fine globules by the process known as emulsification. afterwards fat digesting enzyme lipase present in the pancreatic juice and intestinal juice converts it into fatty acids and glycerol.
The transport system consists of Xylem and Phloem. Xylem which have vessels and tracheids to transport water and minerals from root to other parts of the plant. Phloem which consists of sieve tubes, sieve cells and companion cells transport food from leaves to storage organs and other parts of the pRead more
The transport system consists of Xylem and Phloem.
Xylem which have vessels and tracheids to transport water and minerals from root to other parts of the plant.
Phloem which consists of sieve tubes, sieve cells and companion cells transport food from leaves to storage organs and other parts of the plant.
In Xylem, the transport is unidirectional i.e., from root upward while in Phloem, it is bidirectional.
The separation of the right side and left side of the heart is useful so as to prevent oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs,such as birds and mammals, which constanRead more
The separation of the right side and left side of the heart is useful so as to prevent oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs,such as birds and mammals, which constantly use the energy to maintain their body temperature.
In lungs, the bronchioles terminate in balloon-like structures called alveoli. The alveoli provide extensive surface where the exchange of gases can take place. The thin, moist, permeable walls of alveoli facilitate quick diffusion and exchange of gases. Moreover it is richly supplied with blood capRead more
In lungs, the bronchioles terminate in balloon-like structures called alveoli. The alveoli provide extensive surface where the exchange of gases can take place. The thin, moist, permeable walls of alveoli facilitate quick diffusion and exchange of gases. Moreover it is richly supplied with blood capillaries. ( the alveolar area, if spread out, covers about 80 m2 which is more than our body surface area).
The inner lining of the small intestine has numerous finger-like projections called villi which increases the surface area for absorption of digested food . The villi are richly supplied with blood vessels which transport the absorbed food to each and every cell of the body, where it is utilised forRead more
The inner lining of the small intestine has numerous finger-like projections called villi which increases the surface area for absorption of digested food . The villi are richly supplied with blood vessels which transport 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 the old ones.
Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.
Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.
The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organismRead more
The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organisms perform certain life processes like respiration, excretion, transportation, reproduction which enables it to sustain itself.
How are fats digested in our bodies? Where does this process take place?
Digestion of fats takes place in the small intestine. Fats entering in intestine are in the form of large globules. Bile juice breaks down these large globules into small, fine globules by the process known as emulsification. afterwards fat digesting enzyme lipase present in the pancreatic juice andRead more
Digestion of fats takes place in the small intestine.
See lessFats entering in intestine are in the form of large globules. Bile juice breaks down these large globules into small, fine globules by the process known as emulsification. afterwards fat digesting enzyme lipase present in the pancreatic juice and intestinal juice converts it into fatty acids and glycerol.
What are the components of the transport system in highly organised plants?
The transport system consists of Xylem and Phloem. Xylem which have vessels and tracheids to transport water and minerals from root to other parts of the plant. Phloem which consists of sieve tubes, sieve cells and companion cells transport food from leaves to storage organs and other parts of the pRead more
The transport system consists of Xylem and Phloem.
See lessXylem which have vessels and tracheids to transport water and minerals from root to other parts of the plant.
Phloem which consists of sieve tubes, sieve cells and companion cells transport food from leaves to storage organs and other parts of the plant.
In Xylem, the transport is unidirectional i.e., from root upward while in Phloem, it is bidirectional.
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
The separation of the right side and left side of the heart is useful so as to prevent oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs,such as birds and mammals, which constanRead more
The separation of the right side and left side of the heart is useful so as to prevent oxygenated and deoxygenated blood from mixing. Such separation allows a highly efficient supply of oxygen to the body. This is useful in animals that have high energy needs,such as birds and mammals, which constantly use the energy to maintain their body temperature.
See lessHow are the lungs designed in human beings to maximise the area for exchange of gases?
In lungs, the bronchioles terminate in balloon-like structures called alveoli. The alveoli provide extensive surface where the exchange of gases can take place. The thin, moist, permeable walls of alveoli facilitate quick diffusion and exchange of gases. Moreover it is richly supplied with blood capRead more
In lungs, the bronchioles terminate in balloon-like structures called alveoli. The alveoli provide extensive surface where the exchange of gases can take place. The thin, moist, permeable walls of alveoli facilitate quick diffusion and exchange of gases. Moreover it is richly supplied with blood capillaries. ( the alveolar area, if spread out, covers about 80 m2 which is more than our body surface area).
See lessHow is the small intestine designed to absorb digested food?
The inner lining of the small intestine has numerous finger-like projections called villi which increases the surface area for absorption of digested food . The villi are richly supplied with blood vessels which transport the absorbed food to each and every cell of the body, where it is utilised forRead more
The inner lining of the small intestine has numerous finger-like projections called villi which increases the surface area for absorption of digested food . The villi are richly supplied with blood vessels which transport 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 the old ones.
See lessWhat is the function of digestive enzymes?
Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.
Enzymes break-down the various complex organic molecules of food into simple, soluble absorbable inorganic molecules without actually participation in the reaction. So they are also called as biocatalysts.
See lessWhat processes would you consider essential for maintaining life?
Nutrients, respiration, transportation, excretion and reproduction are the five life processes that are essential for maintaining life.
Nutrients, respiration, transportation, excretion and reproduction are the five life processes that are essential for maintaining life.
See lessWhat criteria do we use to decide whether something is alive?
The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organismRead more
The most important criterion to decide whether something is aliveor not is the movement. All the living things which are alive move by themselves without any external help. Movement here does not mean physical movement only. It also includes movements at molecular level. secondly all living organisms perform certain life processes like respiration, excretion, transportation, reproduction which enables it to sustain itself.
See lesswhich statement is not true about thyroxine ?
(a) Iodine is essential for the synthesis of thyroxine.
(a) Iodine is essential for the synthesis of thyroxine.
See lessA feature of reproduction that is common to Malarial parasite, Spirogyra and Yeast is that
(c) they reproduce asexually.
(c) they reproduce asexually.
See less