Microfilaments
The ileum refers to the last part of the small intestine, and is composed of many cells.
At the centre of a cell ---- ---- ----
Both root hair cells and small intestine cells are specialized for absorption. Root hair cells increase the surface area of plant roots, allowing for efficient uptake of water and nutrients from the soil. Similarly, small intestine cells have microvilli that enhance the surface area for absorbing nutrients from digested food. Both cell types exemplify how structural adaptations facilitate their primary functions in nutrient absorption.
1. The small intestine is LONG- this ensures food remains in the small intestine long enough for the products of digestion to be fully absorbed into the bloodstrem. 2. The Small intestine is HIGHLY FOLDED into villi (s. villus)- This gives a greater surface area for more efficient diffusion of products into the bloodstream. 3. The small intestine has a RICH BLOOD SUPPLY - Each villus has a network of capillaries so that the products of digestion are carried away from the small intestine efficiently. 4. The epithelium of the small intestine in the villi is only ONE CELL THICK - for easier diffusion of the products of digestion into the bloodstream. The walls of the capillaries are only one cell thick as well!!
It's an organ. The organ system it belongs to is the digestive system, and it is made up of several types of tissues (epithelial, muscle, etc.), so it can't be a system or tissue in itself.
Smooth Endoplasmic Reticulum (organelles) cells are responsible for absorption, synthesis, and transport of fats (in intestinal cells). They catalyze reactions involved in these processes.
the cell lining of the small intestine is called villi and are small, finger-like projections that are used to increase surface area.
it is an organ!
the ribsomes
The ileum refers to the last part of the small intestine, and is composed of many cells.
At the centre of a cell ---- ---- ----
nucleoli
The cell surface which lines the intestines have villi and microvilli. These are finger-like protrusions which increase the surface vastly.
the lining of the small intestine has folds, and are covered with finger-like projections called villi, which are covered with thousands of micro-villi
The different types of molecules that the cell assembles
Digestive System-Circulatory System-Cell
Both root hair cells and small intestine cells are specialized for absorption. Root hair cells increase the surface area of plant roots, allowing for efficient uptake of water and nutrients from the soil. Similarly, small intestine cells have microvilli that enhance the surface area for absorbing nutrients from digested food. Both cell types exemplify how structural adaptations facilitate their primary functions in nutrient absorption.