Q2)The esophagus is about 9-10 inches (25 centimeters) long. 

Q3)Hydrochloric acid is secreted by the gastric gland from the walls of stomach.

Q4)Pancreas produces lipase, amylase and trypsin enzymes.

Q5)Bile contains sodium bicarbonate which neutralize acid from stomach and bile salt that emulsify lipid.

Answers: 
a)i.maltose
b)i.gastric gland
c)i.duodenum 
ii. hydrolyse lipid and breaking down starch and polypeptides
d) lipids
hye laila..good input from you =)

Q2 : the esophagus is about 9 – 10 inches (25 centimeters) long . 

Q3 : the hydrochloric acid being secreted by gastric glands from the wall of stomach 

Q4 : the enzymes that produces by the pancreas are trypsin , amylase and lipase. 

Q5 : the function of bile are digestion and absorption of fats 

anyone can explain about the Q1, please

Q1:Both mechanical digestion and chemical digestion are necessary for the digestion of foods and beverages into pieces and molecules that are small enough to be absorbed in the small intestine. 

Mechanical digestion involves the process of physically breaking down the food into ever smaller parts. The major player in mechanical digestion is mastication, which is the act of chewing and using the teeth to break the food into pieces small enough to be swallowed into the esophagus. Generally begins in the mouth. There are also muscles in the stomach wall that contribute to mechanical digestion. We can see the larger food turning  into ever smaller pieces by the action of the teeth. 

Chemical digestion means food is broken down into small molecules by chemical energy. One big part of chemical digestion involves the enzymes located in stomach. They begin to break down food as soon as it enters the stomach.Chemical digestion actually starts in the mouth when our saliva mixes in with the food. Saliva has an enzyme known as amylase that is important in breaking down carbohydrates. As an enzyme, amylase is a type of protein that undergoes a biochemical reaction to change one molecule into another molecule. Most chemical digestion, however, occurs within the stomach, with some happening in the intestines. The hydrochloric acid, located in the stomach, works for the purposes of chemical digestion.Chemical digestion is completely invisible. In the process of chemical digestion, starches we eat are turned into simple sugars. Pepsin turns large proteins into peptides, which are turned into amino acids for absorption. 

1) 3 important organs that help stomach and small intestine digest food are; 

The pancreas, liver, and gallbladder. 

2) Saliva break down carbohydrate into small unit called maltose. 

3) Hydrochloric acid is secreated by parietal cells. 

4) Pancreatic juice secreated by the pancreas into bicarbonate and digestive system. 

5) Gallbladder stores concentrated bile to duodenum in order to digest fatty foods. 

6) Discuss what is mechanical and chemical digestion 

Mechanical digestion is the physical act of breaking down the food by non-chemical means. Mechanical digestion begins in the mouth by the physical act of mastication (chewing) meanwhile chemical digestion refer to the breakdown of food in the mouth, stomach and intestines through the use of acids and enzymes 

7) Find out how long is the esophagus is? 

The esophagus is about 9-10 inches (25 centimeters) long and less than an inch (2 centimeters) in diameter when relaxed. 

8) How hydrochloric acid being secreated? 

Parietal cells contain an extensive secretory network (called canaliculi) from which the hydrochloric acid is secreted into the lumen of the stomach. 

9) What kind of enzymes produces by the pancreas? 

Pancreatic proteases (such as trypsin and chymotrypsin) which help to digest proteins. 

10) What is the function of bile? 

Emulsify fats and break it down by down into small particles and helps the body absorbs the breakdown products of fat in the gut. 

Digestive enzymes and water are responsible for the breakdown of complex molecules such as fats, proteins, and carbohydrates into smaller molecules. These smaller molecules can then be absorbed for use by cells.

 
2)Esophagus is abaout 9-10 inches or 25 cm.

3)Hydrochloric acid  is secreted by cell in the stomach.It prepare food for digestion especially protein.

4)Enzyme that produces by pancreas is lipase, amylase and trysin.

5) The function of bile is absorption of fats.
 4)a)i)maltose
     b)i)stomach
     c)i)duodenum
     d)i)hydrolysis lipid
ii)lipid

. Chemical digestion is much like it sounds – those aspects of digestion achieved with the application of chemicals to our food.

Digestive enzymes and water are responsible for the breakdown of complex molecules such as fats, proteins, and carbohydrates into smaller molecules. These smaller molecules can then be absorbed for use by cells.

2.Enzyme that produce by pancreas is lipase ,amylase and trysin
3.Esophagus is about 9-10 inches or 25 centimeter.
4.  Cell is the lining in the stomach that secretes a HCL that help to breakdown the process.
5. The function of bile is absorption of fats -maltose,stomach,duodeneum,hydrolisis lipid,lipid

The esophagus is about 9-10 inches or 25 centimeters. Parietal cells contain an extensive secretory network from which the hydrochloric acid is secreted into the lumen of the stomach. 

Enzymes produces by the pancreas are Proteases that digest proteins, Amylase that digest carbohydrates and Lipase that digest fat.

Bile contains bile acids, which are critical for digestion and absorption of fats and fat-soluble vitamins in the small intestine. 

Q3) 3 major organs  that play important role in helping stomach to digest food is Pancreas, Liver and Gallbladder.

Q4) a) maltose 

       b) gastric gland

       c) i) duodenum

           ii) hydrolyse lipid

        d) lipids