Download App
Google Android
Apple iOS
Huawei
English
English
Malay
Guest
Login
Register
Home
Quiz
Battle
Practice
Class
Classes List
Timetable
Assignments
Learn
Learning Hub
Quick Notes
Videos
Experiments
Textbooks
Login
Register
Download App
Google Android
Apple iOS
Huawei
EN
MS
Learn
Quick Notes
List
Assimilation
Assimilation
9.4
Assimilation
The Role of The Circulatory System
The human circulatory system consists of the blood circulation system and the lymphatic system to help transport nutrients to be assimilated.
In the assimilation process that occurs in cells, nutrients are used to form complex compounds or structures of components.
The blood capillaries in the small intestine combine to form the hepatic portal vein that transports blood to the liver.
Lacteals combine to form bigger lymph vessels in the lymphatic system.
Then, the contents of the lymph vessels enter the thoracic duct that flows into the left subclavian vein.
This lipid is then transported by blood throughout the body.
Functions of Liver in The Assimilation of Digested Food
The liver is the regulator that controls the quantity of nutrients that enter the blood circulatory system.
The liver carries out the following functions:
Metabolism of Digested Food
Glucose is used for cellular respiration.
Amino acids are used for synthesising plasma proteins and enzymes.
Through the deamination process, excess amino acids are turned into urea to be excreted through the urine.
Detoxification
Liver cells expel toxic substances from the blood.
Toxic substances are expelled through the urine.
Storage of Nutrients
Excess glucose is converted to glycogen to be stored.
Assimilation Process in The Liver
Amino Acids
The liver synthesises plasma protein and enzymes from amino acids.
Excess amino acids cannot be stored in the body and are broken down through the deamination process to form urea which is then expelled.
When the glucose supply is insufficient, the liver converts amino acids into glucose.
Glucose
Glucose in the liver is used for cellular respiration when required by the body and the excess is converted to glycogen and stored in the liver.
When the glucose level in the blood decreases and the body needs energy, glycogen is converted to glucose.
When the glycogen supply reaches a maximum level, the excess glucose is converted to fats.
Assimilation Process in Cells
Amino Acids
Amino acids are used to synthesise new protoplasm and also repair damaged tissues.
Amino acids are used to synthesise hormones and enzymes.
Glucose
Glucose is oxidised through cellular respiration to release energy, water and carbon dioxide.
Excess glucose is kept as glycogen in muscles.
Energy is used for cell processes such as protein synthesis.
Lipids
Lipids such as phospholipid and cholesterol are the primary components that build the plasma membrane.
Excess fats are kept in adipose tissues found underneath the skin as stored energy.
Fat is oxidised to release energy when there is insufficient glucose.
Assimilation
9.4
Assimilation
The Role of The Circulatory System
The human circulatory system consists of the blood circulation system and the lymphatic system to help transport nutrients to be assimilated.
In the assimilation process that occurs in cells, nutrients are used to form complex compounds or structures of components.
The blood capillaries in the small intestine combine to form the hepatic portal vein that transports blood to the liver.
Lacteals combine to form bigger lymph vessels in the lymphatic system.
Then, the contents of the lymph vessels enter the thoracic duct that flows into the left subclavian vein.
This lipid is then transported by blood throughout the body.
Functions of Liver in The Assimilation of Digested Food
The liver is the regulator that controls the quantity of nutrients that enter the blood circulatory system.
The liver carries out the following functions:
Metabolism of Digested Food
Glucose is used for cellular respiration.
Amino acids are used for synthesising plasma proteins and enzymes.
Through the deamination process, excess amino acids are turned into urea to be excreted through the urine.
Detoxification
Liver cells expel toxic substances from the blood.
Toxic substances are expelled through the urine.
Storage of Nutrients
Excess glucose is converted to glycogen to be stored.
Assimilation Process in The Liver
Amino Acids
The liver synthesises plasma protein and enzymes from amino acids.
Excess amino acids cannot be stored in the body and are broken down through the deamination process to form urea which is then expelled.
When the glucose supply is insufficient, the liver converts amino acids into glucose.
Glucose
Glucose in the liver is used for cellular respiration when required by the body and the excess is converted to glycogen and stored in the liver.
When the glucose level in the blood decreases and the body needs energy, glycogen is converted to glucose.
When the glycogen supply reaches a maximum level, the excess glucose is converted to fats.
Assimilation Process in Cells
Amino Acids
Amino acids are used to synthesise new protoplasm and also repair damaged tissues.
Amino acids are used to synthesise hormones and enzymes.
Glucose
Glucose is oxidised through cellular respiration to release energy, water and carbon dioxide.
Excess glucose is kept as glycogen in muscles.
Energy is used for cell processes such as protein synthesis.
Lipids
Lipids such as phospholipid and cholesterol are the primary components that build the plasma membrane.
Excess fats are kept in adipose tissues found underneath the skin as stored energy.
Fat is oxidised to release energy when there is insufficient glucose.
Chapter : Nutrition and Digestive System of Humans
Topic : Assimilation
Form 4
Biology
View all notes for Biology Form 4
Related notes
Digestive System
Digestion
Absorption
Defaecation
Balanced Diet
Health Issues Related to the Digestive System and Eating Habits
Biological Field and Career
Safety and Rules in Biological Laboratory
Communication in Biology
Scientific Investigation in Biology
Report this note
Timed Exam
Prepare exams with mock exam papers
Learn more
Register for a free Pandai account now
Edit content
×
Loading...
Quiz
Videos
Notes
Account