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Essay On Science Digestive System

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Essay On Science Digestive System
RT Year 8 Science Body System Investigation

My Question: Do plants have or need a digestive system?

Some plants have digestive systems, but those plants live in marsh areas because they can't get adequate nitrogen. But most plants don't have digestive systems. Plants that don't have digestive live in soils and environments that contain all the nutrients and other things they need. Plants that have a special type of digestive system that is much different to humans live in areas with not enough nutrients they need. The different parts of a plant are:
Roots: Roots act like straws absorbing water and minerals from the soil. Tiny root hairs stick out of the root, helping in the absorption. Roots help to anchor the plant in the soil
…show more content…
The order of food getting digested is in this order; The food would go down the mouth and get mechanically chewed and then goes down the Esophagus into the gallbladder, after it ends up in the stomach where it gets mainly digested. Then it goes into the liver where it gets transported into the intestines and out the anus.

What is the difference between mechanical and chemical digestion?
The difference between mechanical and chemical digestion is that mechanical mainly happens with animals teeth and rarely happens with anything else. Chemical Digestion mainly happens with the acids and chemicals inside the animals body's. The difference is that one is manual and one is automatic. Most animals have both these features but some of them only have one of the features.

What are the roles of digestive enzymes?
Digestive enzymes help break down certain foods like how lipase enzymes help digest fats and how protease enzymes break down proteins. Also amylase enzymes break down carbohydrates and cellulose enzymes help break down cellulose molecules into simple sugars. There are 4 different digestive enzymes all with different purposes to help achieve the one goal. Without these enzymes it would be extremely difficult to break down certain types of foods and

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