functions of placenta,pituatary , pancrease,stomata,liver,villi
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placenta
1. it is a disc shaped structure
2.it provides nutrition to the embryo ,
3. in addition to that it provides the embryo all the oxygen remove the waste materials from embryos to the Mother's blood.
4. has villi on the embryo side and blood spaces on the Mother's side.
pituitary gland-
1. . it is known as the master gland.
2. releases growth hormone which helps in the development of the human body as the dawarfism and gigantism .
Pancreas-
1.it secretes insulin which helps in the regulation of sugar in blood among the body
2. also has an exocrine function that helps in digestion of food in converting it into the fuel for the body cells .
stomata - two functions of stomata are given below
1. first it it reduces the water loss during evaporation
2.it opens during the daytime encloses during the night time .
3. they are the main component of photosynthesis
villi-
1. small finger like projections in small intestine is called villi
2. helps in the absorption of food in a small intestine
3. increases the surface area of the stomach to absorb the food materials.
:-)
1. it is a disc shaped structure
2.it provides nutrition to the embryo ,
3. in addition to that it provides the embryo all the oxygen remove the waste materials from embryos to the Mother's blood.
4. has villi on the embryo side and blood spaces on the Mother's side.
pituitary gland-
1. . it is known as the master gland.
2. releases growth hormone which helps in the development of the human body as the dawarfism and gigantism .
Pancreas-
1.it secretes insulin which helps in the regulation of sugar in blood among the body
2. also has an exocrine function that helps in digestion of food in converting it into the fuel for the body cells .
stomata - two functions of stomata are given below
1. first it it reduces the water loss during evaporation
2.it opens during the daytime encloses during the night time .
3. they are the main component of photosynthesis
villi-
1. small finger like projections in small intestine is called villi
2. helps in the absorption of food in a small intestine
3. increases the surface area of the stomach to absorb the food materials.
:-)
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Answer:
(a) Pepsin: Pepsin is a proteolytic enzyme secreted in the stomach that is involved in the breakdown of proteins.
(b) HCl: HCl provides an acidic medium for food to be digested, it stops the activity of amylase and helps activate pepsinogen by converting it into its active form pepsin.
(c) Bile: Bile helps break down fats into fatty acids and also acts as a medium for excretion of bilirubin, a by-product of the breakdown of RBC's.
(d) Saliva: It has a lubricating effect and helps in swallowing and chewing food. Saliva also contains enzymes such as salivary amylase that helps break down starch into its simpler form.
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