What is Cell biology: Definition and 24 Discussions

Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function and behavior of cells. Cell biology encompasses both prokaryotic and eukaryotic cells and can be divided into many sub-topics which may include the study of cell metabolism, cell communication, cell cycle, biochemistry, and cell composition. The study of cells is performed using several techniques such as cell culture, various types of microscopy, and cell fractionation. These have allowed for and are currently being used for discoveries and research pertaining to how cells function, ultimately giving insight into understanding larger organisms. Knowing the components of cells and how cells work is fundamental to all biological sciences while also being essential for research in biomedical fields such as cancer, and other diseases. Research in cell biology is interconnected to other fields such as genetics, molecular genetics, biochemistry, molecular biology, medical microbiology, immunology, and cytochemistry.

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  1. bo reddude

    what are the forces on a cell in a tree vs on the surface of a tree

    Hey everyone. Let's say you have a tall tree. say, 10 m tall. Take a cubic cell 1mm in dimensions. Suppose the cell is at 1 m high in the center of the trunk of the tree. What are the forces acting on the cell? let's say tree cell's mass is t grams. its weight is F= ma = t (9.8) = 9.8 t...
  2. A

    How far are we from producing artificial cells in the lab?

    Synthetic biology is a rapidly growing field of science that aims at redesigning organisms for medical and agricultural applications, by means of biotechnology, genetic engineering, molecular biology and other methods by chemical, biological or computer engineering. As far as I understand it...
  3. Ygggdrasil

    2019 Nobel Prize in Physiology or Medicine

    Today, the 2019 Nobel Prize in Physiology or Medicine was awarded to three scientists who study how cells sense and respond to changes in oxygen levels: https://www.nobelprize.org/prizes/medicine/ These three scientists were previously awarded the Lasker Prize for Basic Medical Research in...
  4. Asmaa Mohammad

    Degeneration of injured cells: granules in cloudy swelling

    Hello, I am doing a pathology course this year, and while reading about reversible injury of cells (degeneration), i came across this part related to cloudy swelling of cells when injured: 'The cell is swollen and the cytoplasm appears granular.' I understand why cells swell, but can't get...
  5. TranscedentKid

    Features of CRISPR-Gold?

    Why is gold un-reactive enough to be used as nanoparticles? Why do cells preform endocytosis upon detection of the gold delivery system? What are the chemical receptors active? Why is does it cause less genetic damage than doing it virally? Is this system partly designed to change the DNA of...
  6. P

    How important are T-Cells

    Can a percentage of total and immediate (hypothetical sub 1 second) T-Cell loss cause death to a typical adult? What percentage of hypothetical immediate loss would yield rapid death under 1 minute? What would the most likely cause of death be? What size is a typical T-Cell in µM^3 ? Is...
  7. chemisthypnos

    Observe pH Damaged Cells Via Microscope?

    For an upcoming research project, I intend to apply different solutions to cultures of cells. How would I determine if the cells are incurring damage from the solutions due to the pH of the solutions as I observe them under my compound microscope?
  8. Asmaa Mohammad

    The secretory pole in secretory cells

    Hello, I read that Golgi Apparatus when examined below the electronic microscope, appears a network of fibrils either apical or perinuclear. And it is apical when the Golgi apparatus is between the secretory pole and the nucleus in secretory cells. I don't know what exactly is the "secretory...
  9. Asmaa Mohammad

    Electron dense and electron-lucent

    Hello, Chromatin in the living cell is divided into Heterochromatin and Euchromatin. My book states that the Heterochromatin, when examined by the electronic microscope, is electron dense, and the Euchromatin is electron-lucent. I don't understand any of the concepts in bold. And I would...
  10. Asmaa Mohammad

    Vesicular and bulk transport

    In the biological cell, is the bulk transport the same as the vesicular transport? I read about them separately and found that they happen in the same way, so I guessed that they are the same thing, or am I wrong?
  11. C

    How intimately can we observe DNA replication?

    I found this interesting computer animation representing DNA functions in cells. My questions: 1) How precisely can we actually magnify cell functions, and what is preventing us from peering in as closely as depicted in the video (keeping in mind that I know it's probably technologically...
  12. Ygggdrasil

    Regulation of a Target Gene

    I am studying a particular gene whose expression decreases in certain types of cancer. I'm interested in finding out the mechanisms for this downregulation, specifically, which transcription factors and signalling pathways are involved. I have a hypothesis for the pathway involved, but in case...
  13. Katiesunkissed

    Cell parts

    1. Homework Statement Homework Equations The Attempt at a Solution
  14. V

    How to do lab testing for cells in foods

    Hello. I have no experience as a cellular biologist nor have any lab experience or knowledge. However I would like to know how would one go about finding out what is needed in order to test the following foods mostly for human cells (any kind) : 1. How can I examine the following food items...
  15. S

    Any non-textbook books about Cell Bio?

    Hey guys, I'm looking for a book to read just to gain a deeper understanding of cell bio. I found this book, but I'm not sure I want to read it yet: https://www.amazon.com/dp/9814307327/?tag=pfamazon01-20 I'm looking for something that isn't in a textbook format. Any suggestions? Thanks, -Serg
  16. J

    Cell physiology vs Molecular biology vs Cell Biology?

    What exactly is the concrete difference between those three?
    • Jarfi
    • Thread
    • Biology Cell Cell biology Molecular Molecular biology Physiology
    • Replies: 3
    • Forum: Biology and Medical
  17. Greg Bernhardt

    Essential Cell Biology by Bruce Alberts

    Author: Bruce Alberts (Author), Dennis Bray (Author), Karen Hopkin (Author), Alexander Johnson (Author), Julian Lewis (Author), Martin Raff (Author), Keith Roberts (Author), Peter Walter (Author) Title: Essential Cell Biology Amazon Link...
  18. Z

    Using Cell Biology Book From 1983

    The bio department at my university encouraged that I "take a look at" Alberts' Molecular Biology of the Cell over this summer in preparation for a course next year. The problem with this is that I don't want to actually buy a $100+ book just for that, but the only book I have borrowing access...
  19. S

    Campbell and Reece 8th edition Cell Biology

    hello everyone hopefully i make use of this forum "We now have an explanation of why carbohydrates is always found on the outside surface of the plasma membrane. It is because the carbohydrate was originally added by enzymes in the lumen of the ER, and membrane asymmetry is preserved when...
  20. N

    Cell Biology - Devising Experiments

    Cell Biology -- Devising Experiments Homework Statement I've included a picture of the problem to avoid confusion 2. The attempt at a solution I need to devise an experiment that would confirm the 3 statements. By experiements, it means something along the line of DNAase II sensitivity...
  21. D

    Biology So after a B.Sc in Cell biology

    Hey guys, I am trying to find what type of hospital jobs are suitable for a person who will have a B.Sc in cell microbiology. There are jobs (some have been stated many times in this forum) such as doctor, pharmacist, etc, but are there more? I know that a B.Sc will not get me much in a...
  22. L

    Cell Biology Q&A - Fucus, Holdfasts, Air Bladders & Bioluminescence

    I can't find the answer on the net..if anyone taken cell bio. Can you guys help me out :) 1. how does the structure of fucus differ from the green algae? 2. how is a holdfast different from a plant root? 3. consifering where fucus lives, what do you think is the function of its air...
  23. B

    Schools UK Cell Biology Schools Ranked 5th-12th

    I want to do master research in UK abuot cell biology, which school rank between 5th~10th( to 12th is also ok) about cell biology in UK. thanks
  24. A

    Some cell biology questions (cancer & lactose intolerance)

    Hey guys! I'm taking a pretty basic cell biology class this semester, our book is "The World of the Cell", 5th edition, by Becker, Kleinsmith, and Hardin. My prof assigned a little homework assignment, it's pretty easy, but I think I'm reading to deep into it. The problem is called...
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