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2 cell types that have no hayflick limit?
Cancer cells and stem cells are two cell types that do not have a Hayflick limit. Cancer cells can divide indefinitely due to mutations that allow them to bypass the normal regulatory mechanisms that limit cell division. Stem cells also have the ability to self-renew and differentiate into various cell types, allowing them to continuously divide and replenish tissues in the body.
Glial cells present in large numbers in areas of bacterial infection in the brain would most likely be what?
Microglial cells would likely be present in large numbers in areas of bacterial infection in the brain. They are a type of glial cell that acts as the first line of defense in the central nervous system, responsible for detecting and responding to infections and injuries.
What kind of endoplasmic reticulum are you likely to find in cells that line the stomach?
Cells that line the stomach will likely contain rough endoplasmic reticulum (RER) because these cells produce and secrete digestive enzymes and mucus. The RER is responsible for protein synthesis and modification before they are transported to other parts of the cell or secreted.
How do hela cells differ from other cells?
Research has shown that HeLa cells have an active form of the enzyme Telomerase (not present in normal cells, but can be found in most cancerous cells). Telomerase is active during cell division, and prevents the shortening of telomeres - a mechanism that is associated with ageing and eventual cell death.
Is memory cells part of third line of body defence?
Yes, memory cells are part of the adaptive immune response, which is considered the third line of defense in the immune system. Memory cells are responsible for remembering previous encounters with specific pathogens and mounting a quicker and more efficient immune response upon re-exposure.
Which of the cells depicted in the line graph in figure 8-8 are most likely cancerous?
The graph on figure 8-8 is not shown here so there really is not any way to know which one is correct. Without his information the answer is not able to be known.
How can cancer start?
Cancer starts when your cell goes through cell cycle, which is the reproduction of cells. Your cell copies DNA so that there are 4 strands in your cell. The nuclear membrane disappear. The cells then line up in the middle of the cell. When the cells separate on to either side of the cell this can get messed up. If three DNA strands go to one side and one goes to the other side they become cancerous cells. When these cancerous cells build up they become tumors.
Why are most cancer cells epithelial cells?
Epithelial cells are rapidly dividing, and are more exposed to carcinogens like UV radiations, and environmental toxins than other tissues in the body as epithelial cells line the surface of the body. Cells which reproduce frequently are more prone to become cancerous than other tissues.
What is the measure of the solid line angle depicted by the following figure?
90 degrees
What cells line the ventricle of the brain?
Ependymal cells
What cells line the ventricles of the brain?
ependymal cells
Which of the following cell types are least likely to reproduce endothelial cells that line the digestive system fibroblasts of connective tissue skeletal muscle tissues red bone marrow cells?
sceletal muscle tissue
What do the cells do that line your internal organs?
epithelial cells
What are the cells that line the circulatory system?
red blood cells
What is a row or column in ICT?
A row is a horizontal line of cells in a spreadsheet or table. A column is a vertical line of cells in a spreadsheet or table.
What do the cells in the retina and the cells that line your air passages have in common?
The cells in the retina and the cells that line your air-passages have only one thing in common: they are often seen in close proximity to each other in homework questions about what the relationship between retinal cells and air-passage cells might be.
What is the measure of the solid line angle depicted by the following figure 180 degrees and 0 degrees?
270 degrees
