The Haversian canals
The sugar produced by photosynthesis in the leaf is transported through a network of tubes called phloem. These tubes carry the sugar to other parts of the plant where it is needed for energy or storage.
The Prime Example: is the MTOC; also known as "The Microtubule Organizing Centers". First runner-up is "The Cytoskeleton".
Water and minerals are absorbed by the plant's roots and transported upward through specialized tubes called xylem. This process is driven by transpiration, where water evaporates from the leaves, creating tension that pulls water from the roots. The movement of water and minerals through the plant body is essential for nutrient uptake and maintaining plant structure.
Peristalsis is the progressive wavelike movement that occurs involuntarily in hollow tubes of the body, such as the digestive system. It helps propel contents through these tubes, like food through the esophagus or waste through the intestines.
Haversian canals and osteons are the telescoping tubes of matrix that form a large part of compact bone. These structures contain blood vessels and nerves that supply nutrients and signals to the bone cells. The osteons are organized around the central Haversian canal, which allows for efficient transport throughout the bone tissue.
The Haversian canals
cytoskeleton
Tracheal tubes
The sugar produced by photosynthesis in the leaf is transported through a network of tubes called phloem. These tubes carry the sugar to other parts of the plant where it is needed for energy or storage.
Blood vessels
Endoplasmic Reticulum
Bronchial Tubes
It is network of tubes in eukaryotic cells .
A CT does not breathe air like humans do. Instead, a CT relies on a specialized system of tubes called trachea and spiracles to help facilitate gas exchange. Oxygen enters the CT's body through the spiracles and is transported to its cells through a network of tracheal tubes.
The endoplasmic reticulum (ER) is the network of tubes inside a cell that holds the ribosomes. There are two types of ER: rough ER, which has ribosomes attached to its surface, and smooth ER, which does not have ribosomes. The ribosomes on rough ER are involved in protein synthesis.
endoplasmic reticulum
No, sea stars are echinoderms, they have no bones in their body, they have tubes that fill with water to help them move.