Cell biology

Discuss the issues surrounding the ethics of human and/or animal research The broadening of people 's understanding of biology and psychology in the past centuries, has not resulted in a full comprehension of what animals feel or think, although the majority of findings in these scientific fields were based on animal models. Notwithstanding the fact that there is a lack of information on the subject of similarity of the mental experiences of animals used in research, excuses for neglect and…

One of the greatest gifts from God to humankind is biology. From the Greek words which mean the study of life, biology is a branch of science that focuses on how living things works. For example, how does a tiny human being turns into a full-grown adult in just matter of time? Why are there twins that look exactly alike but there are some that are not exactly alike? Thanks to biology, scientists now are able to answers these questions. It is all in the genes or more accurately the…

The process of somatic cell nuclear transfer SCNT is a laboratory procedure where the purpose is to copy, reproduce, a live creature or CLONE it. The nucleus of a somatic cell, any cell of a living organism other than the reproductive cell, the cytoplasmic factors influence the nucleus to turn into a zygote. As a result, the egg undergoes a blastocystic stage and it creates the embryonic stem cells. The process takes two cells, one is the donor of the nucleus and the second the receiver of this…

floating that is register as odor with our noses. Through our breathing or sniffing, we take in these odor molecules. The particle go through our nose and trapped by the mucous lining of our nasal passages. Within the mucous lining, there are nerve cells and it will sense the odor. Those lining will give out signal and sent it to our brain to interpreted and reconigzed as a smell. 2. Jawless fish have a very few number of odor genes while mammals have a much larger number. Why does this make…

credit was an article Stanford Report’s Bjorn Carey wrote about associate Biology professor Jan Skotheim and a team he has been working with about conducting research to see how the growth of cells could lead to cell division. What this team did first was they chose to test on yeast because it is easy to manipulate and they believed that if they could have success on yeast, they could take what they found and use it on human cells. The team began to look at a protein called Cln3, which is the…

Do you ever wonder how and who knows what to put in pharmaceutical or prescription drug to help either a simple headache or even a disease as bad as HIV? Well, a biochemist is one career in which he or she may develop new materials. He or she must go through many years of education along with doing a lot of research. Being a biochemist is a very important, interesting, and valuable career. To become a successful biochemist, it takes a lot of hard work, dedication, and understanding of math and…

University researchers studying the biology of aging demonstrated a new strategy for stimulating autophagy - the process by which cells rebuild themselves by recycling their own worn-out parts. The process of autophagy involves rounding up misfolded proteins and obsolete organelles within a cell into vesicles called autophagosomes. The autophagosomes then fuse with a lysosome, which breaks down the cellular macromolecules and converts them into components the cell can re-use. Louis Lapierre, an…

The SH-SY5Y neuroblastoma cell line was procured from National Centre for Cell Sciences, India and maintained in (DMEM) (Sigma Aldrich, USA) and Ham 's F12 nutrient mixture (F12) (Sigma Aldrich, USA) in 1:1 ratio. The medium was supplemented with 2 mmol L-glutamine (HiMedia, India), 10% (v/v) heat inactivated fetal bovine serum (FBS) (Hyclone Laboratories, Logan, UT) and 1% antibiotics (penicillin/streptomycin). Cells were cultured at 37 ºC in a humidified CO2 ¬incubator containing 5% CO2 and…

untreated HepG2 cells. Well “B” contained camptothecin, which is used as a control for killing the HepG2 cells instead of the use of plumbagin. Well “C” contained the compound Epigallocatechin Gallate. Well “D” remained empty, because a vehicle treatment is not needed for this experiment. Each well contained 1 ml of HepG2 cells. A negative and positive control where both set up in the 12-well tissue culture plate. The positive control was set to be Well “B”, where the HepG2 cells where treated…

make up essential molecules in our bodies, such as proteins or nucleic acids. They may be microscopic, but their functions in our bodies are important. Background Information There is so much more to being “biological” than just being related to biology. Polymer Structure Biological polymers are large molecules composed of many similar smaller molecules linked together. The individual smaller molecules are called monomers. When small organic molecules are joined together, giant molecules…