Taking a Look at Intracellular Fluid

It is made up of either liquid, solid, or connective tissue, within the matrix there are many types of connecting fibres, such as collagen and elastic fibres.

As the lab introduction explains, osmosis is relatively permeable to water and will follow solutes. By instinct, the water will move from a more diluted solution to more of a concentrated solution. The products of the experiments concluded the physiological significance of osmosis by how cell membranes in the body are semipermeable meaning that only certain molecules can pass through it. When intracellular fluid and extracellular fluid are at equilibrium by non-penetrating and concentrated solutes, no net movement of water goes in and out of the cell. Furthermore, if the ECF changes in osmolality, then depending on the difference between the ECF and ICF will determine whether water moves in or out of the cell. This is important in the cell membrane as small differences in osmolarity correspond to large, rapid change in osmotic pressure, causing cells to gain or lose water. In sum, our body makes critical decisions in what molecules are allowed to penetrate the cell membrane and make sure that our red blood cells don’t cause any problems within the

Materials move into and out of cells through either passive transport or active transport. Passive transport includes diffusion and osmosis. Molecules tend to move from crowded to less crowded in order to achieve a balance or to reach homeostasis. The cell membrane is selectively permeable which allows the movement of substances, especially oxygen, water, food molecules, carbon dioxide, and waste products, into or out of the cell without the use of energy. Movement occurs when there are unequal concentrations of a substance inside and outside of the cell.

58) Connective tissues that possess a large quantity of collagen fibers often provide the framework for organs such

Thinner, more darkly stained elastic fibers composed of the protein elastin can also be seen. The principal type of cells seen are lightly-staining fibroblasts that secrete the matrix materials.

Water can enter the cell in order to balance the amount inside to the amount of the environment. This is passive due to the fact that it happens without any external energy.

Cells need to let water-soluble ions and molecules, like glucose and amino acids into them from the environment. However these molecules diffuse through the phospholipid bilayer of the plasma membrane very slowly, so they use another form of passive transport to move these

C. Describe and explain the differences in CELL composition between the 3 primary body fluids: blood, intercellular (AKA interstitial) fluid, lymph.

The dermis contains elastic and fibrous tissues such as fibrillin, collagen and elastin. These tissues gives

1. The fluid that surrounds the cell membrane has the same tonicity and osmotic pull as inside the cell.

The second type of tissue found in the body is connective tissue. They lie beneath the epithelial tissue helping to connect different part of the internal structure, the cells are more widely separated from each other then in epithelial tissue. The intercellular substance known as the matrix is found in considerably large amounts. Within the matrix there are usually fibres which may be a jelly like consistency or dense and rigid depending on the type, function and positioning of the tissue. Theses fibres form a supporting system for cells to attach to. The major functions of connective tissue are to transport materials, give structural support and protection. The types of connective tissue that will be explained are blood, bone, cartilage, bone, areolar tissue and adipose tissue.

Water is the principle solvent in cells. There are three conditions that a cell may be subjected to in the cells physical environment. The cells may be isotonic, hypotonic, and hypertonic. Isotonic is when the cell and is environment have equal concentrations of solutes. Therefore cells in an isotonic solution do not experience osmosis. When the cell is hypotonic it has a lower concentration of solutes so water will move out of the cell. When the cell is hypertonic, it will have a higher concentration of solutes and water will move into the cell to attempt to reach an isotonic state. The primary purpose of

Cells are always in motion, energy of motion known as kinetic energy. This kinetic energy causes the membranes in motion to bump into each other, causing the membranes to move in another direction – a direction from a higher concentration of the solution to a lower one. Membranes moving around leads to diffusion and osmosis. Diffusion is the random movement of molecules from an area of higher concentration to an area of lower concentration, until they are equally distributed (Mader & Windelspecht, 2012, p. 50). Cells have a plasma membrane that separates the internal cell from the exterior environment. The plasma membrane is selectively permeable which allows certain solvents to pass through

About one quarter of all the protein in your body is collagen. It is a major structural material that forms molecular cables to strengthen the tendons and resilient sheets that support the skin and internal organs. Bones and teeth are made by adding mineral crystals to collagen. Collagen provides structure to our bodies, protecting and supporting the softer tissues and connecting them with the skeleton. But, in spite of its critical function in the body, collagen is a relatively simple protein.

All proteins are composed of amino acids, organic molecules made from Carbon, Hydrogen, Oxygen and Nitrogen. Collagen is the most ample protein in mammals, in fact collagen constitutes around 25 % of a mammals entire protein content, Collagen is more precisely a family of proteins rather than one particular protein. Fibroblasts are the cells that usually produce collagen. Collagen is a complex molecules so doesn’t have a simple chemical structure for it; diagrams usually show collagen as a fiber.(Helmenstine 2015). There are 19 types of collagen in the collagen family, the 5 most abundant are type I collagen, found in connective tissue of skin, bones, teeth, tendons, ligaments, fascia and organ capsules, type II found in joint cartilage, type III, found in connective tissue of our organs such as liver, spleen and kidneys and type IV & V are the separating layer between epithelial and endothelial cells as well as between skeletal or smooth muscle cells , lens capsule, Schwann & glial cells of the nervous system.(Cellbone® technology 2007) Collagen is fibrous, fibrous proteins tend to have the hydrophilic R groups brought to the inside of the molecule and the hydrophobic R groups tend to be pushed to the outside of the molecule making it insoluble due to the hydrophobic and hydrophilic interactions . Collagen is also a strong structural protein thus Collagen suits its function in animal connective tissues such as bone skin and muscle. (Fullick et al 2015)