Search Results for 'Cell'

DNA Replication And Cell Division

DNA replication means to create two complete DNA strands from a single template DNA for each daughter cell in a single parent cell.There is a special kind of enzyme which breaks the hydrogen bongs between the DNA and divides the [...]

Posted On : May, 16 2007 | Comments : 0

Modified Bone Marrow Cells Help Treat Multiple Sclerosis in ...

A new study has shown that modified bone marrow cells can help recovery in an animal model of multiple sclerosis (MS). Harald Neumann and colleagues from the University of Bonn modified myeloid precursor cells to express a protein (triggeri [...]

Posted On : Apr, 17 2007 | Comments : 0

Properties Of The Cell Membrane

The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell. Electron microscopic examinations of cell membranes have led to t [...]

Posted On : Apr, 13 2007 | Comments : 0

The Origins of Multicellularity

The oldest accepted prokaryote fossils date to 3.5 billion years; Eukaryotic fossils to between 750 million years and possibly as old as 1.2-1.5 billion years. Multicellular fossils, purportedly of animals, have been recovered from 750Ma [...]

Posted On : Apr, 11 2007 | Comments : 0

New Way for Pancreas Cell Regeneration

Replacing faulty or missing cells with new insulin-making cells has been the object of diabetes research for the last decade. Past studies in tissue culture have suggested that one type of pancreas cell could be coaxed to transform into ins [...]

Posted On : Apr, 07 2007 | Comments : 0

The Cell Wall

Not all living things have cell walls, most notably animals and many of the more animal-like protistans. Bacteria have cell walls containing the chemical peptidoglycan. Plant cells, have a variety of chemicals incorporated in their cell w [...]

Posted On : Apr, 07 2007 | Comments : 0

New Technology for Manufacturing Flexible Solar Cells

The University of Delaware's Institute of Energy Conversion (IEC) has developed new technology for the manufacture of flexible solar cells, which could reduce the costs associated with the use of photovoltaic energy while at the same time e [...]

Posted On : Apr, 04 2007 | Comments : 0

Tissue cells can convert to stem cells

Scientists at the Carnegie Institution have found that certain cells involved in egg development in the fruitfly can be stimulated to revert to fully functioning stem cells. "This finding could lead to new sources of stem cells from ot [...]

Posted On : Apr, 03 2007 | Comments : 0

Stem Cell Therapy Holds Out Hope to Heart Patients

Patients suffering from heart failure might be able to "regrow" muscle and blood vessels in their own failing organs with the help of stem cells transplanted from their hip bones, surgeons said yesterday. Trials at several centr [...]

Posted On : Apr, 01 2007 | Comments : 0

Prokaryotic Cell Division

Prokaryotes are much simpler in their organization than are eukaryotes. There are a great many more organelles in eukaryotes, also more chromosomes. The usual method of prokaryote cell division is termed binary fission. The prokaryotic chro [...]

Posted On : Mar, 27 2007 | Comments : 0

Adult Stem Cells for Heart Repair

The University of Wisconsin School of Medicine and Public Health is among the first medical centers in US taking part in a novel clinical trial investigating if a subject's own stem cells can treat a form of severe coronary artery disease. [...]

Posted On : Mar, 26 2007 | Comments : 0

Cell Movement

Cell movement is both internal, referred to as cytoplasmic streaming, and external, referred to as motility. Internal movements of organelles are governed by actin filaments and other components of the cytoskeleton. These filaments make an [...]

Posted On : Mar, 24 2007 | Comments : 0

How Blood Cells Change Shape

Millions of times during their four-month lifespan, human red blood cells must squeeze through tiny capillaries to deliver their payload of oxygen and pick up waste carbon dioxide-functions essential to life. Now, for the first time, resea [...]

Posted On : Mar, 24 2007 | Comments : 0

The Cell Cycle

Despite differences between prokaryotes and eukaryotes, there are several common features in their cell division processes. Replication of the DNA must occur. Segregation of the original and its replica follow. Cytokinesis ends the cell div [...]

Search Results for 'Cell'

Posted On : May, 16 2007 | Comments : 0

Posted On : Apr, 17 2007 | Comments : 0

Posted On : Apr, 13 2007 | Comments : 0

Posted On : Apr, 11 2007 | Comments : 0

Posted On : Apr, 07 2007 | Comments : 0

Posted On : Apr, 07 2007 | Comments : 0

Posted On : Apr, 04 2007 | Comments : 0

Posted On : Apr, 03 2007 | Comments : 0

Posted On : Apr, 01 2007 | Comments : 0

Posted On : Mar, 27 2007 | Comments : 0

Posted On : Mar, 26 2007 | Comments : 0

Posted On : Mar, 24 2007 | Comments : 0

Posted On : Mar, 24 2007 | Comments : 0

Posted On : Mar, 23 2007 | Comments : 0