Answer the following.
(1) How are fats digested in the human body?
(2) What would be the consequences of deficiency of haemoglobin in the human body?
(3) How do plants get rid of their excretory products?
Answer the following.
(1) How are fats digested in the human body?
(2) What would be the consequences of deficiency of haemoglobin in the human body?
(3) How do plants get rid of their excretory products?
(1) The digestion of fats takes place in the small intestine. The partially−digested acidic food i.e., chyme leaves the stomach and enters the small intestine. The small intestine receives the secretion from two glands - liver (bile juice) and pancreas (pancreatic juice). The bile juice of the liver makes the medium alkaline as it contains salts such as bilirubin and biliverdin. These salts break down large fat globules into smaller globules and activate lipases present in the pancreatic juice. The lipases along with the various intestinal juices carry out the further digestion of small fat globules and convert it into the fatty acids.
(2) Haemoglobin is a red coloured pigment present in the red blood cells of blood. It is responsible for the transportation of oxygen in the body. The deficiency of haemoglobin in the human body will result in decreased transport of oxygen to the various parts of the body.
(3) Plants have no specialized excretory organs so it utilizes its various structures for the purpose of excretion.
1. Plants excrete gaseous waste products through stomata, lenticels.
2. The excess water absorbed from the roots is also lost through stomata via transpiration.
3. Waste products may be stored in leaves that fall.
4. Plant roots also sometimes excrete waste materials.
5. Gums and resins are secreted by plants.
(1) The digestion of fats takes place in the small intestine. The partially−digested acidic food i.e., chyme leaves the stomach and enters the small intestine. The small intestine receives the secretion from two glands - liver (bile juice) and pancreas (pancreatic juice). The bile juice of the liver makes the medium alkaline as it contains salts such as bilirubin and biliverdin. These salts break down large fat globules into smaller globules and activate lipases present in the pancreatic juice. The lipases along with the various intestinal juices carry out the further digestion of small fat globules and convert it into the fatty acids.
(2) Haemoglobin is a red coloured pigment present in the red blood cells of blood. It is responsible for the transportation of oxygen in the body. The deficiency of haemoglobin in the human body will result in decreased transport of oxygen to the various parts of the body.
(3) Plants have no specialized excretory organs so it utilizes its various structures for the purpose of excretion.
1. Plants excrete gaseous waste products through stomata, lenticels.
2. The excess water absorbed from the roots is also lost through stomata via transpiration.
3. Waste products may be stored in leaves that fall.
4. Plant roots also sometimes excrete waste materials.
5. Gums and resins are secreted by plants.
