Cell Structure Essay

The fluid surrounding the cells called tissue fluid are bother watery environment. Also, it’s the outside of any large cell. The function is to protect the cells from the surroundings. It also allows things to enter in and out of the cell this will maintain the support of cell and shape. Nucleus

There are many parts of a cell, they all have specific duties, and are all

Plant cells have selectively permeable membrane that allows selective substances to penetrate into the cell. Cell membranes are consisting of lipid layer that are made up of phospholipids. (Essays, UK.2013). These phospholipids are amphipathic in nature, which have phospholipids head and tail respectively. Phospholipids heads are hydrophilic and tails

The mitochondria is an organelle of a cell. It works as it was the digestive system, it’s in charge of obtaining the nutrients, then break them down, and finally, all that work is for maintaining the cell full of energy, so they would be as the power plants of the cell. The mitochondria are in charge of creating 90% of the energy that our bodies need so it can sustain life and support our growth. The mitochondria are small organelles that floats all through the cell. Some cells have many, lots of mitochondria, but others just have none; for example, the muscle cells need a lot of energy, so they contain lots of mitochondria, otherwise, neurons don’t need as much. Depending of the quantity of energy that the cell needs, mitochondria could be created.

It is also composed of poring proteins: can regulate molecules entering or leaving the cell.

Mitochondria, dubbed the ‘powerhouse of the cell’, are a type of organelle present in most human cells. Their primary function is to generate Adenosine Triphosphate (ATP), the cell’s principal source of chemical energy. Unlike most other organelles, mitochondria store their own set of genetic material, distinct from the DNA situated in a cell’s nucleus. Although this ‘mitochondrial genome’ represents only 0.1% of a cell’s genetic information, it often plays a significant role in development.

This is made possible by the support lent to it by the slightly elastic cellulose cell wall. It will support a turgid cell enough to prevent it from bursting (see left). It is turgid cells such as this that provide a plant with its support. Animal cells on the other hand, do not have supporting cell walls, just cell membranes. As plants are always surrounded by water, it is vital for them to have cell walls, but animal cells, surrounded by blood (low water concentration), do not need as much support.

Second off we have the plant cell. The plant cell has chloroplasts unlike a animal cell (Doc.1). Chloroplasts hold

Mitochondria are important because they allow our bodies to function by converting oxygen that we breathe in and the nutrients we ingest from food to energy we can use in the form of ATP (Adenosine triphosphate). This is done through aerobic respiration (requires oxygen), without the many mitochondria we have in our body we would not have sufficient energy from anaerobic respiration for our metabolic requirements. (Link its importance to its other functions- what would happen if it could not perform its functions e.g. lack of regulation of apoptosis and cancer- links to essays overall argument).

Larger plants have special cells that form supportive tissues. These cells have extra thick and strengthened cell walls. To strengthen their cell walls, they produce a special carbohydrate called lignin. Lignin is the main substance that makes wood. For this reason, woody plants are said to be lignified.

The mitochondria has been known as the powerhouse of the cell. What does that even mean? Well, what it means that the mitochondria does all of the cell energy conversion. It takes nutrients from the cell and transforms it into viable ATP. ATP, molecule adenosine triphosphate, is the energy that cells can use. The process in turning nutrients into ATP is called ATP Synthase. The first part of ATP synthase is an ending of cellular respiration. The mitochondria plays a small but large role in the cell. The structure of the mitochondria plays a huge part of cellular respiration. Mitochondrial structure has two membranes an inner and an outer. Inside the inner membrane you have the matrix and the cristae. The first part of cellular respiration is glycolysis, it is made outside of the mitochondria in a gel like fluid called the cytoplasm. Next, is the citric acid cycle, also known as the Krebs cycle, named after the German researcher Hans Krebs, goes in through the outer membrane. Enzyme Acetyl CoA enters and combines the two carbon groups with another four carbon groups. The result is six carbon molecules citrate, which are acidic. The next part in the Krebs cycle is that the hydrogen atoms are stripped and produce NADH molecules. The final Krebs step is; ADP is transferred to ATP the succinate is oxidized forming another four carbon molecule. The two hydrogen carbons react and their electrons transform from FAD to FADH2. The Krebs cycle makes only about 4 ATP and in the

The theme structure fits function is extremely important in the lives of living things, and can be seen or represented in a variety of ways. Carbohydrates are a prime example of the theme structure fits function. For example, cellulose, which is a form of carbohydrates found in plants, provides strength and rigidity to plant cell walls. Cellulose is arranged in sheets that are stacked upon one another, which give it more strength than if it were only one

P1 – Describe the microstructure of a typical animal cell and the functions of the main cell components. A typical animal cell is seen as a tiny, three dimensional sac which is in fact made up of many components, each as important as the other. The microstructure of an animal cell was in fact uncovered mainly through the use of both cell fractionation and electron microscopy. Each main component has its own, individual function which helps a cell to function and maintains the cell membrane. The components that I will be describing include the cell membrane, nucleus, cytoplasm, mitochondria, lysosomes, Golgi bodies, centrioles, endoplasmic reticulum (both smooth and rough) and ribosomes.

Mitochondrion is an importance structure that lies in the cytoplasm area. Mitochondrion is the plural word for mitochondria, which is the key organelle that converts energy from one form to another. Mitochondria changes the chemical energy stored in food into compounds that are more convenient for the cell to use. The mitochondrion contains two special membranes. The outer membrane surrounds the organelle, and the inner membrane has many folds that increase the surface area of the mitochondrion.

Eukaryotic cells - found in animals, plants and fungi. In eukaryotic cells, the DNA is sectioned off from the cytoplasm in its own membrane compartment called the nucleus.