- 1 Which of the following is true regarding digestion and absorption?
- 2 What is the main role of the stomach in digestion and absorption?
- 3 What type of digestion and absorption takes place in stomach?
- 4 What does the stomach absorb during digestion?
- 5 What statement about digestion is true?
- 6 Which one of the following statements regarding digestion is correct?
- 7 What are the four functions of the stomach?
- 8 What are the 5 steps of digestion?
- 9 What is the role of the stomach in the digestive system?
- 10 What is absorption in human digestive system?
- 11 What are the two main processes of the digestive system?
- 12 What is absorption process?
- 13 Is the stomach chemical or mechanical digestion?
- 14 What are the three phases of gastric activity?
- 15 What is the cardia of the stomach?
Which of the following is true regarding digestion and absorption?
So, the correct answer is ‘ Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+’.
What is the main role of the stomach in digestion and absorption?
The stomach stores the incoming food, mixes it with digestive juices, and slowly empties its contents into the small intestine. The cells lining its wall secrete dilute hydrochloric acid that assists in the breakdown process.
What type of digestion and absorption takes place in stomach?
In the stomach, food undergoes chemical and mechanical digestion. Here, peristaltic contractions (mechanical digestion) churn the bolus, which mixes with strong digestive juices that the stomach lining cells secrete (chemical digestion).
What does the stomach absorb during digestion?
The stomach participates in virtually all the digestive activities with the exception of ingestion and defecation. Although almost all absorption takes place in the small intestine, the stomach does absorb some nonpolar substances, such as alcohol and aspirin.
What statement about digestion is true?
Digestion is a form of catabolic activity because it involves the breaking down of food into smaller sizes that can be absorbed as nutrients by the body while releasing energy through the process. The statement about digestion which is true is that, gastric juice helps to process food into chyme.
Which one of the following statements regarding digestion is correct?
The correct answer is option 3 i.e Fat of food is digested by lipases. Explanation: Digestion: It is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. Digestion of food is done by enzymes in the body.
What are the four functions of the stomach?
The four key components of gastric digestive function are its function as a reservoir, acid secretion, enzyme secre- tion and its role in gastrointestinal motility.
What are the 5 steps of digestion?
The five steps which occur in the process of nutrition in animals are Ingestion, digestion, absorption, assimilation, and egestion. Ingestion is the process the food is taken inside through mouth and broken down by teeth and initial digestion takes place in the mouth by saliva.
What is the role of the stomach in the digestive system?
Stomach. The stomach is a hollow organ, or “container,” that holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a usable form. Cells in the lining of the stomach secrete a strong acid and powerful enzymes that are responsible for the breakdown process.
What is absorption in human digestive system?
Digested food molecules are absorbed in the small intestine. This means that they pass through the wall of the small intestine and into our bloodstream. Once there, the digested food molecules are carried around the body to where they are needed.
What are the two main processes of the digestive system?
Key Points Two important functions of the digestive system are digestion and absorption. The nutrients that come from food are derived from proteins, fats, carbohydrates, vitamins, and minerals. These complex macromolecules must be broken down and absorbed in the gastrointestinal (GI) tract.
What is absorption process?
In chemistry, absorption is a physical or chemical phenomenon or a process in which atoms, molecules or ions enter some bulk phase – liquid or solid material. The process of absorption means that a substance captures and transforms energy.
Is the stomach chemical or mechanical digestion?
Digestion is a process that converts nutrients in ingested food into forms that can be absorbed by the gastrointestinal tract. Proper digestion requires both mechanical and chemical digestion and occurs in the oral cavity, stomach, and small intestine.
What are the three phases of gastric activity?
The process of gastric secretion can be divided into three phases ( cephalic, gastric, and intestinal ) that depend upon the primary mechanisms that cause the gastric mucosa to secrete gastric juice.
What is the cardia of the stomach?
The part of the stomach that is closest to the esophagus. Food and liquids pass through the cardia to enter the stomach from the esophagus. A valve near the cardia helps keep stomach contents from backing up into the esophagus.