Parts of the Digestive System and Their Functions
3 天之前 · The organs also play a critical role in the removal of unused material from the body. The digestive system, also known as the gastrointestinal tract, is made up of the mouth, esophagus, stomach, small intestine, large intestine, rectum and the anus. Read on to find out more about the digestive system parts and functions. Digestive System Parts ...
What are the main parts of the digestive system, and how are
6. Amylase, protease, and lipase from the pancreas break down large, insoluble molecules into small, soluble molecules (see section on digestive enzymes). 7. The small, soluble molecules are absorbed by cells in the lining of the small intestine. In the large intestine: 8. Water is absorbed from undigested food, to produce faeces.
1. Describe how different parts of the human digestive system
Describe how different parts of the human digestive system help to break down molecules of fat so that they can be absorbed into the body. Fat is first processed by mechanical breakdown in the mouth through chewing and in the stomach through its ‘churning’ action.
How is glucose absorbed by the body? - MyTutor
Glucose is a product of carbohydrate digestion, the absorption of which into the blood stream involves two main stages: 1) Diffusion into the blood: When carbohydrates are first broken down, there's a higher concentration of glucose in the small intestine than in the blood, creating a concentration gradient, so glucose moves across the ...
Where is water absorbed in the digestive system? - MyTutor
A good way of remebering the functions of the digestive system is to annotate pictures of the digestive system in the body - by understanding the structure, it will help understand the function Answered by Yashaswini C. • Biology tutor
What are the major parts of a neuron? What are the three
2) There are 3 main types of neurons: Sensory neurons (afferent neurons) transfer information from the external environment to the central nervous system (CNS). Motor neurons (efferent neurons) transfer information from the CNS to external environment, to effector organ e.g. gland or …
Describe the role of bile in the digestive system | MyTutor
Describe the role of bile in the digestive system Bile is made in the liver and stored in the gall bladder. Bile emulsifies fatty acids and lipids, breaking large chains into smaller droplets.
Describe ways in which the body prevents entry of microorganisms
The first line of defence is the skin. This forms a physical barrier that prevents any microorganisms from getting into the body.
What is the role and structure of enzymes in the human body?
The role of enzymes are to act as a catalyst to speed up the rate of chemical reactions within the human body
What are the main differences between bivalves and brachiopods?
Bivalves - Firstly they have two identical valves make up the main shell. They also grow from a few mm to 1m in size such as the giant clam. In order to close the valves, a pair of adductor muscles contract to keep valves closed (leave scars at anterior and posterior). When the muscles relax, external ligament pulls them open.