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Where does the energy that makes life possible come from? Humans obtain energy from three classes of fuel molecules: carbohydrates, lipids, and proteins.
- Cell Metabolism
Recall that chemical reactions convert substrates into...
- Cell Metabolism
5 Σεπ 2018 · What’s the purpose of chemical digestion? Digestion involves taking large portions of food and breaking them down into micronutrients small enough to be absorbed by cells. Chewing and...
The nutrients absorbed during digestion are transported via the bloodstream to cells throughout the body, where they are used for energy, growth, and repair. Carbohydrates are broken down into glucose, the primary energy source for cells.
Chemical Digestion. Chemical digestion is the biochemical process in which macromolecules in food are changed into smaller molecules that can be absorbed into body fluids and transported to cells throughout the body. Substances in food that must be chemically digested include carbohydrates, proteins, lipids, and nucleic acids.
26 Ιουλ 2023 · What to know about chemical digestion. Chemical vs. mechanical. Why is it necessary? The digestive system. Summary. Chemical digestion occurs when the body uses enzymes to break down...
24 Φεβ 2023 · Chemical digestion, on the other hand, is a complex process that reduces food into its chemical building blocks, which are then absorbed to nourish the cells of the body (Figure 23.8.1 23.8. 1). In this section, you will look more closely at the processes of chemical digestion and absorption.
Chemical digestion breaks large food molecules down into their chemical building blocks, which can then be absorbed through the intestinal wall and into the general circulation. Intestinal brush border enzymes and pancreatic enzymes are responsible for most of the chemical digestion.
