MEDICAL
RECTUM AND ANUS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
chemical digestion
|
|
|
mechanical digestion
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -Mechanical digestion in the oral cavity consists of grinding of food into smaller pieces by the teeth, a process called mastication.
Detailed explanation-2: -The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.
Detailed explanation-3: -Physical digestion in the mouth includes chewing, which masticates, or grinds, food. Chemical digestion in the mouth is done by salivary amylase which is the enzyme in the saliva that breaks down complex carbohydrates into simple sugar.
Detailed explanation-4: -Answer and Explanation: Mastication is an example of mechanical digestion as it involves the physical breakdown of food (crushing or grinding) with the use of teeth.