234 Answered Questions for the topic Cell Biology

07/27/19

How does formaldehyde/PBS or methanol fixation of cells affect lysosomal pH?
**The question** is fairly simple - does formaldehyde or methanol fixation in preparation for immunocytochemistry/immunofluorescent staining affect the pH of the lysosomes?**Some background:** I'm... more
Follows • 1
Expert Answers •1
Cell Biology Biology Biophysics

07/25/19

Role of microvilli in cell volume regulation?
Does the presence of microvilli on a cell's surface ensure that it's more resistant to cell swelling or lysis in a hypotonic solution, as compared to a normal cell?
Follows • 1
Expert Answers •2
Cell Biology Biology Cell Membrane

07/25/19

How do detergents get in hydrophobic membrane interior?
According to *Molecular And Cellular Biology* (Stephen L. Wolfe), Membranes disperse almost instantaneously if exposed to a nonpolar environment or to detergents, which are amphipathic molecules... more
Follows • 1
Expert Answers •1
Cell Biology Biology

07/25/19

Which cells are responsible for the extracellular matrix remodeling?
I am studying a case of tendinopathies induced by an alteration of how the extracellular matrix is being remodeled. From my understanding there has to be a careful balance of MMP... more
Follows • 1
Expert Answers •1
Cell Biology Biology Hearing

07/25/19

Is the ringing sound in the ears caused by dying ear cells?
I was recently watching the movie "<a href="http://www.imdb.com/title/tt0206634/">Children of Men</a>" (great movie) by Alfonso Cuarón. Now in a certain scene, the lead actor happens to... more
Follows • 1
Expert Answers •1

07/24/19

Are centrioles really absent in human neurons?
A booklet (issued by my school) claims, Centrioles, formerly believed to be absent in neurons, have been described in neurons and may be associated with the production and maintenance of... more
Follows • 1
Expert Answers •1

07/24/19

Where do plants get their food?
I am wondering how plants like pond lillies survive in the water without being in the ground.
Follows • 1
Expert Answers •1
Cell Biology Biology Human Biology Death

07/24/19

Will neurons die if they are inactive for a long time?
We know that when muscles are not used they atrophy. Does something similar also happen in neurons if they do not receive any stimulus?
Follows • 1
Expert Answers •1
Cell Biology Biology Evolution Virus

07/23/19

How did viruses learn to utilize the workings of a cell?
This is my first post here, so excuse me for its simplicity.Viruses can infiltrate a cell, overtake it and multiply. It has projecting fibers whose ends are shaped as kind of a "key" to a mobile... more
Follows • 1
Expert Answers •1
Cell Biology Biology Cancer

07/23/19

Expression/Mechanism of ROR1 in healthy tissue?
ROR1 is currently under investigation as a therapeutic target for cancer (1). A number of studies show different cancers may have their metastatic potential reduced, or become apoptotic through... more
Follows • 2
Expert Answers •1

07/23/19

Can immune cells be recruited to an area of inflammation, and later go on to a second?
With regards to innate or adaptive immune cells... can naive/immature cells such as neutrophils, monocytes, macrophage/dendritic cells or adaptive T-cells be recruited to an area of inflammation,... more
Follows • 1
Expert Answers •1

07/23/19

Can someone explain the color-changing unit (CCU) to me?
I've been physically carrying out serial tenfold dilutions on samples of Ureaplasma to work out the color-changing units (CCU). As a definition, the CCU is the highest dilution at which there is... more
Follows • 1
Expert Answers •1

07/23/19

Does endo- and (or) exocytosis require energy? Do they belong to active / passive transport?
I expect vesicle formation and fusion to require energy input; however, I'm not sure about which of endocytosis and exocytosis require energy and how they use the energy input.Do they belong to... more
Follows • 2
Expert Answers •1

07/22/19

How can E. coli affect C. elegans expression?
Plasmids can be transferred to *E. coli*. These transformed *E. coli* can be fed to *C. elegans* to silence its gene expression by RNAi. How can *E.coli* release RNAi to *C. elegans*? Even if we... more
Follows • 2
Expert Answers •1
Cell Biology Biology Human Biology

07/19/19

Does an allergic reaction kill body cells?
I have wondered what actually happens in an allergic reaction that causes the symptoms such as pain, rash etc.Is it possible that the human body actually kills its own cells in the process?
Follows • 1
Expert Answers •1

07/19/19

How do lipid-soluble substances diffuse through the cell membrane?
It’s said that water-soluble substances can diffuse through cell membrane with less ease than lipid-soluble substances because the former encounters impedance in the hydrophobic region of the... more
Follows • 1
Expert Answers •1
Cell Biology Biology Cancer

07/19/19

Does an increase in cancer cell traction forces increase metastasis of the cancer cells?
I am not very familiar with biology, but I have read some articles about cell traction forces lately, where the cells are cancer cells. I found this very interesting, so I thought it might be nice... more
Follows • 1
Expert Answers •2
Cell Biology Biology Meiosis Evolution

07/18/19

Why did Fair Meiosis evolve?
How and why did Fair Meiosis evolve? I can hardly think that it provided a fitness advantage to the individual carrying the mutation. Why would it? Or did it evolve through lineage selection? Or... more
Follows • 2
Expert Answers •1

07/18/19

Do lysosomes play any role in cell division?
My biology textbook includes a point that lysosomes stimulates cell division without further elaborating. But studying it, I felt eerie about this function of lysosome. Then, I checked on the... more
Follows • 1
Expert Answers •1
Cell Biology Biology

07/17/19

How does sugar enter neurons if they don't use insulin?
I heard somewhere that as opposed to other cells, neurons do not use insulin to get their sugar supply.Why is that?What is the alternative mechanism? I assume sugar can't just enter the cell... more
Follows • 2
Expert Answers •1

07/17/19

Why should phospholipid non-polar tails be "protected" in the membrane bilayer?
>lipids are arranged within the membrane with polar head towards the outer side and non polar tails towards inner side, this ensures that the non polar tail is protected from aqueous... more
Follows • 1
Expert Answers •1

07/15/19

How much does the Hayflick limit/telomere length vary across taxa and within humans?
Since they seem to be quite connected, I'm curious if anyone knows of research comparing the Hayflick limit (and presumably by extension telomere length) between different taxa. I've heard the... more
Follows • 1
Expert Answers •1

07/15/19

Can we investigate the cell biology of extinct microorganisms?
I know that there are microfossils, but not if we can we know about the organelles, genetics or macromolecules of the cells that left them behind.
Follows • 1
Expert Answers •1

07/13/19

How are the physiological properties of mitochondria measured?
this is my first question on BiologySE. I am a Physics and Mathematics student currently doing a project on cell growth simulation. I am doing literature survey and I have a question about cellular... more
Follows • 1
Expert Answers •1
Cell Biology Biology Terminology Meiosis

07/13/19

Are there verbs for "undergo mitosis" and "undergo meiosis"?
From my experience on SE sites, I believe this is the right site to ask this question under "terminology".I've been trying to find out whether English has one-word verbs for "undergo mitosis" and... more
Follows • 1
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.