Science, asked by gaurav5206, 11 months ago

How does the digestion of humans started and get stops from where to where please give me the full answer and also the digestion of amoeba thank you

Answers

Answered by harshita53944
0

Answer:

Digestion of human started from stomach.

THE FOOD WE EAT GOES TO OUR STOMACH AND THEN THE LIVER SECERETS A ACID to digest our food,, THEN THE FOOD GOES TO SMALL INTESTINE AND THEN LARGE INTESTINE.

AND COMES OUT FROM OUR ANUS.

AMOBEA HAVE A CELL NAME psedupodia ,IT HELPS AMOBEA TO DIGEST FOOD.

Answered by prashantyadavji
0

Answer:Stop 1: The Mouth

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The mouth is the beginning of the digestive system, and, in fact, digestion starts here before you even take the first bite of a meal. The smell of food triggers the salivary glands in your mouth to secrete saliva, causing your mouth to water. When you actually taste the food, saliva increases.

Once you start chewing and breaking the food down into pieces small enough to be digested, other mechanisms come into play. More saliva is produced. It contains substances including enzymes that begin the process of breaking down food into a form your body can absorb and use. Chew your food more -- it also helps with your digestion.

Stop 2: The Pharynx and Esophagus

Also called the throat, the pharynx is the portion of the digestive tract that receives the food from your mouth. Branching off the pharynx is the esophagus, which carries food to the stomach, and the trachea or windpipe, which carries air to the lungs.

The act of swallowing takes place in the pharynx partly as a reflex and partly under voluntary control. The tongue and soft palate -- the soft part of the roof of the mouth -- push food into the pharynx, which closes off the trachea. The food then enters the esophagus.Stop 3: The Stomach and Small Intestine

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The stomach is a sac-like organ with strong muscular walls. In addition to holding food, it serves as the mixer and grinder of food. The stomach secretes acid and powerful enzymes that continue the process of breaking the food down and changing it to a consistency of liquid or paste. From there, food moves to the small intestine. Between meals, the non-liquefiable remnants are released from the stomach and ushered through the rest of the intestines to be eliminated.

Made up of three segments -- the duodenum, jejunum, and ileum -- the small intestine also breaks down food using enzymes released by the pancreas and bile from the liver. The small intestine is the 'work horse' of digestion, as this is where most nutrients are absorbed. Peristalsis is also at work in this organ, moving food through and mixing it up with the digestive secretions from the pancreas and liver, including bile. The duodenum is largely responsible for the continuing breakdown process, with the jejunum and ileum being mainly responsible for absorption of nutrients into the bloodstream.

A more technical name for this part of the process is "motility," because it involves moving or emptying food particles from one part to the next. This process is highly dependent on the activity of a large network of nerves, hormones, and muscles. Problems with any of these components can cause a variety of conditions.

While food is in the small intestine, nutrients are absorbed through the walls and into the bloodstream. What's leftover (the waste) moves into the large intestine (large bowel or colon).Stop 4: The Colon, Rectum, and Anus

Amoeba follows holozoic mode of nutrition in which the solid food particles are ingested which are then acted upon by enzymes and digested. Steps of Nutrition in Amoeba: Amoeba engulfs food by temporary finger-like projections of its body surface called pseudopodia.

Explanation:

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