saliva. no significance
• Hydrochloric Acid - * helps in the killing of microorganisms that enter with the food
* also provides an acidic medium for pepsinogen to be converted to pepsin
• Pepsinogen - Inactive form of pepsin , With an acidic medium it converts to the powerful enzyme pepsin which can digest proteins and convert proteoses into peptones
• Mucus - protects the inner wall of stomach from actions of HCl and pepsin
4) green vegetables
2. pepsin : it is a protein digesting enzyme and help to convert proteins into peptones and peptides.
3. lipase: it helps to convert fats into fatty acid +glycerol
4.amylase :it convert starch into maltose
5.trypsin :it converts peptons and peptudes into amino acids
Hope it will help you!!!
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a. The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. Associated with the alimentary tract are the following accessory organs: salivary glands, liver, gallbladder, and pancreas.
b.Types of Teeth and Their Functions
There are 4 types of teeth in the oral cavity:
Incisors – The four front teeth in both the upper and lower jaws are called incisors. Their primary function is to cut food. The two incisors on either side of the midline are known as central incisors. The two adjacent teeth to the central incisors are known as the lateral incisors. Incisors have a single root and a sharp incisal edge.
Canines – There are four canines in the oral cavity. Two in the maxillary arch and two in the mandibular area. They are behind and adjacent to the lateral incisors. Their main function is to tear food. They have a single, pointed cusp and a single root. They have the longest root of any tooth. They also serve to form the corners of the mouth.
Premolars (Bicuspids) – These teeth are located behind and adjacent to the canines and are designed to crush food. There are eight premolars in the oral cavity. There are two in each quadrant of the mouth. The one closest to the midline is the first premolar and the one farthest from the midline is the second premolar. These teeth can have 3-4 cusps. The maxillary first premolar has two roots, and the remaining premolars have a single root. There are no premolars in the primary dentition.
Molars – The most posterior teeth in the mouth are the molars. They have broader and flatter surfaces with 4-5 cusps. They are designed to grind food. Mandibular molars typically have 2 roots. Maxillary molars, which are located behind the second premolars, typically have 3 roots. There are 12 molars in the permanent dentition with three in each quadrant of the mouth. They are named starting with closest to the midline as first molars, second molars and third molars. Although, some people do not fully develop the third molars. Third molars are often referred to as wisdom teeth. The primary dentition only contains eight molars.
c: mouth - salaivery amylase
pancreas - pancreatic juice
stomach - HCL,pepsin,mucus
samll intestine - intestinal juice
Explanation:option b is the right answer
Gastric juice is the digestive juice secreted
HCL helps kills any germs entered along with the food and also makes the medium alkaline for action of pepsin on proteins
Enzyme secreted by the gastric juice is Pepsin , it breaks proteins into peptides
Diagram is available on the Internet
HCL -creates an acidic medium which facilitates the action of the enzymes pepsin
MUCUS - protect the inner lining of the stomach from the action of the acid.
PEPSIN - helps In digesting proteins