Cell site

are made up by the building blocks of life named “cells”. They are the foundation of life and contain microscopic components called organelles which carry out complex tasks to provide the “basic structural, functional, and biological unit of all known living organisms” (Wikipedia, Cell(Biology), viewed 19th March 2016, Cells can be classified into two major groups- Prokaryotic and Eukaryotic cells. Prokaryotes are organisms that do not contain a cell nucleus and have no membrane bound…

Cell Theory is used to describe cells as the basic building blocks of all living things. All organisms are composed of one or more cells and have an outer layer of a plasma membrane (or cellular membrane), which acts as a barrier that divides the cell from its surrounding environment. The plasma membrane of a cell acts as a physical barrier and regulates the exchange of materials with its surroundings. It is a permeable membrane that surrounds the cytoplasm. The contents held within the plasma…

Cells are extremely small, but vital to life and although they are extremely complex they have a common structure that enables different cells to perform different jobs. Cells make up every living organism. Mitochondria are a very important part of the cell because the mitochondria are what provide the cell with energy. In fact, a recent study by Boengler, Kosiol, Mayr, Schulz, and Rohrbach (2017) found “A decline in mitochondrial content and mitochondrial function plays a major role in…

Paracrine Signaling Signals that act locally between cells that are close together are called paracrine signals. Paracrine signals move by diffusion through the extracellular matrix. These types of signals usually elicit quick responses that last only a short amount of time. In order to keep the response localized, paracrine ligand molecules are normally quickly degraded by enzymes or removed by neighboring cells. Removing the signals will reestablish the concentration gradient for the signal,…

Assignment 3.05 DNA DNA, deoxyribonucleic acid, is the stuff in humans and almost all other organisms. About every cell in you and everyone else's body has the same DNA. DNA is usually located in the cell nucleus (nuclear DNA),however small amounts of DNA can be found in the mitochondria (mitochondrial DNA or mtDNA). The DNA has information stored as a code created by four chemical bases: adenine (A), cytosine (C), guanine (G), and thymine (T). Each base is connected to a sugar molecule and…

biology is describes the transfer of genetic information within a biological system and was first stated by Francis Crick in 1956. The central dogma is the flow of genetic information as ‘’DNA makes the RNA and RNA makes the protein.’’All biological cells with few exceptions in some follow this rule. This flow takes place through three fundamental processes: replication, transcription and translation. Central Dogma theory was modified when it was found that in some cases RNA carry the genetic…

examined in detail in this essay. The mechanisms of this pathway, the impact of Shh on cell fate and the genetic regulation events that occur as a result will be explored. . . . . . . . . . .…

groups and aliphatic chains allows the presence of more than 1000 different lipid species in any eukaryotic cell. Different types of lipid include Phospholipids, Sphingolipids and Cholesterol. Lipid plays a role in many functions of the cell such as the signaling and the conversion of energy, membrane fluidity and compartmentalization of cellular organelles. The movement of lipids from their sites of synthesis to definitive intracellular…

mitochondrial lineages are maternal. Thanks to the study of the mitochondrial genome it revealed that all humans carried mitochondrial DNA in their cells that dated back to a single…

(VPF) is an endothelial cell specific mitogen in in vitro and is the main factor responsible for vasculogenesis and angiogenesis in a variety of in vivo models. The gene transcripts level of VEGF is stimulated at the time of implantation because process of implantation occurs under hypoxic condition. In rodents, VEGF is involved during embryo–endometrium crosstalk by regulating endothelial cell proliferation and vascular permeability of endothelial cells at implantation sites in rodents (Rabbani…