What is the function of the circulatory system?

Circulate digested food and oxygen

What is the primary function of the excretory system?

Remove by-products from the body

Through aerobic and anaerobic respiration

Autotrophic and heterotrophic nutrition are the two main types of nutrition, where autotrophic involves plants making their own food through photosynthesis, while heterotrophic includes organisms relying on external sources like humans depending on plants.
The digestive system plays a vital role in breaking down food into simpler forms for energy absorption, starting from the mouth with physical digestion and proceeding through the stomach and small intestine before waste elimination through the large intestine, rectum, and defecation.

What are the two types of nutrition?
Autotrophic and heterotrophic
How does digestion process start?
In the mouth
What is the function of the circulatory system?
Circulate digested food and oxygen
What is the primary function of the excretory system?
Remove by-products from the body
How does respiration convert food into energy?
Through aerobic and anaerobic respiration

00:00

The session aims to revise the entire life process chapter in just 20 minutes through mind mapping.
Nutrition is the first essential life process, divided into autotrophic and heterotrophic nutrition.
Autotrophic nutrition involves plants preparing their own food through photosynthesis.
Heterotrophic nutrition includes organisms obtaining food from other sources, like humans depending on plants.
Heterotrophic nutrition is further divided into holozoic, parasitic, and saprotrophic nutrition.
Digestion is crucial to break down complex food into simple forms for the body to utilize for energy.
Digestion starts in the mouth with physical digestion and continues in the stomach and small intestine.
Undigested food is absorbed in the large intestine, stored in the rectum, and excreted through defecation.
Respiration involves converting digested food into energy through aerobic and anaerobic respiration.
The circulatory system circulates digested food and oxygen throughout the body, involving the heart, blood vessels, and blood.

14:29

Pulmonary circulation starts from the right ventricle, where blue blood goes to the pulmonary artery and then to the lungs.
Systemic circulation begins from the left ventricle, with blue blood traveling to the organs and eventually returning to the heart.
The excretory system functions to remove by-products from the body, primarily managed by the kidneys and other organs.
Urine formation occurs in the kidney's nephrons through ultrafiltration, reabsorption, and tubular secretion processes.
The collecting duct gathers urine from the nephrons, storing it in the urinary bladder until expulsion through the urethra during urination.