Epithelium

B) Compare & contrast: Plant & Animal cells. Although plant and animal cells contain numerous similarities, they also feature prevalent significant differences. Animal and plant cells not only have functional differences but also have structural differences. Plant and animal cells both have a nucleus which is the control centre of the cell, it controls how the cell develops and how it reproduces. DNA is the genetic makeup of a cell, organ and body systems, the DNA in a cell is held and…

Giraffe The scientific classification of the giraffe is the Kingdom: Animalia, Phylum: Chordata, Class: Mammalia, Order: Artiodactyla, Family: Giraffidae, Genus: Giraffa, and Species: G. Camelopardalis (Giraffe: The Facts). Giraffes are found in savannas, grasslands and open woodlands in Africa. Each subspecies lives in a different area of Africa. They range from eastern, central and southern Africa (Basic Facts About Giraffes ). During the dry season, giraffes are found near water holes and…

most commonly known for its association involving the disorder Pertussis, or “whooping cough” [1]. The bacterium is a gram negative, cocobacillus capsulate that will typically colonize within the cilia of a human’s respiratory epithelium [2]. Once in the respiratory epithelium, the bacterium is able to inhibit the host’s immune system by colonizing rapidly, as well as releasing pertussis toxin, or PTx [1]. Through these mechanisms, B. pertussis is able to develop the highly contagious disease…

Histologically the cornea has 5 layer from external service to internal the layers are epithelial, bowmen’s membrane, stroma, Descemet’s membrane and endothelial. Frist layer covers the front of the cornea is non-keratinized Stratified squamous epithelium layer which made up of thin epithelial multicellular tissue of fast growing and easily regenerated cells by multiplication in the basal layer with life span of roughly a week.[4] I. Eepithelium…

Case Study: Cervical Cancer Epidemiology and health is concerned with the study of the distribution and the determinants of health and disease in human populations. This case study will review cervical cancer, firstly it will outline and define the condition. It will then present up-to-date data describing the impact, prevalence and mortality rates of the condition before moving on to discuss the distribution and trends of the disease among the Scottish female population. Finally it will…

Procedure of LASIK: First, the eye is numbed with a few drops of topical anesthetic. An eyelid holder is placed between the eyelids to keep them open and prevent the patient from blinking. A suction ring placed on the eye lifts and flattens the cornea and helps keep the eye from moving. Once the cornea is flattened, a hinged flap of corneal tissue is created using an automated microsurgical device, either a laser or blade. This corneal flap is lifted and folded back (figure 1). Then the excimer…

a) Cystic fibrosis affects ion transport in what type of cells? (1 mark) Cystic fibrosis affects ion transport in epithelial cells b) The CFTR protein regulates the transport of a number of ions; name 2 of these ions. (2 marks) The CFTR protein regulates the transport of Cl- and Na+ c) Explain why a defective CFTR gene could cause Dan to produce very salty sweat. (5 marks) The normal function of the CFTR gene provides instructions for making a protein channel called the cystic fibrosis…

Level 3 Applied Science Unit 11 physiology of Human Body Systems Task 1: ORGANELLE DIAGRAM FORM FUNCTION Nucleolus • The nucleolus is a darker staining region of the nucleus. It is non-membrane bound structure composed of ribonucleic acids (RNA) and proteins. It makes ribosomes inside the nucleus and contains all the DNA of the cell. It is also used for cellular reproduction and it is often referred to as the brain of the cell as it controls what goes on. Golgi…

be removed by the cilia lining the lungs and organs. The lack of chloride ion transport causes a thick mucus layer that the cilia can not remove, which in result traps bacteria causing disease. The chloride channels are to let chloride out of the epithelium cells. Someone who does that have cystic fibrosis the channels will open a fair amount of times in order to keep it balanced inside and outside of the cells, On the other hand, those with CF the channels do not work properly and the chloride…

that connects the edges of the wound and stops the bleeding. Once a clot has formed and dried it becomes a scab that seals and protects the wound from germs. Epithelium on the edges of the wound goes through regeneration, a process in which new cells of the same function and structure are formed; as the inflammatory responses proceed, epithelium forms under the scab as well. Eventually the wounds edges meet again and the scab is shed. Under the surface, macrophages remove neutrophils and the…