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Jul 15, 2021 · Absorption Definition and Examples. Absorption occurs when ions, atoms, or molecules pass into a bulky material. These particles (the absorbate) diffuse or dissolve into the absorbent substance. A familiar example is a paper towel picking up water. Eventually, water evenly permeates the paper.
Table of Contents. Absorption can be defined as the process of assimilating substances across the intestinal epithelial cells or the tissues and organs through the process of active or passive transport. This can be facilitated through diffusion or osmosis and always follows the digestion process and never precedes it.
IGCSE BIOLOGY REVISION - [Syllabus 7.5] Absorption | Channels for Pearson+. 39. Digestive System.
The shuttle is a spacecraft which is used to take satellites into space. The drawing below shows the shuttle just about to take off. (a) The shuttle has a separate fuel tank containing liquid hydrogen and liquid oxygen. Explain why hydrogen and oxygen are transported as liquids rather than as gases.
Keywords. Blood - Blood is a liquid which transports nutrients and waste around the body. Absorption - Absorption is the process of moving nutrients from the digestive system into the blood. Surface area - Surface area is the area of a surface. Diffusion - Diffusion is the net movement of particles from an area of higher concentration to an ...
Core: State that water diffuses through partially permeable membranes by osmosis. State that water moves in and out of cells by osmosis through the cell membrane. Investigate and describe the effects on plant tissues of immersing them in solution of different concentrations.
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5 Define absorption as movement of digested food molecules through the wall of the intestine into the blood 6 Define assimilation as the movement of digested food molecules into the cells of the body where they are used, becoming part of the cells 7 Define egestion as passing out of food that has not been digested, as faeces, through the anus
