What is Biochemistry: Definition and 99 Discussions

Biochemistry or biological chemistry, is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology and metabolism. Over the last decades of the 20th century, biochemistry has become successful at explaining living processes through these three disciplines. Almost all areas of the life sciences are being uncovered and developed through biochemical methodology and research. Biochemistry focuses on understanding the chemical basis which allows biological molecules to give rise to the processes that occur within living cells and between cells, in turn relating greatly to the understanding of tissues and organs, as well as organism structure and function. Biochemistry is closely related to molecular biology, which is the study of the molecular mechanisms of biological phenomena.Much of biochemistry deals with the structures, functions, and interactions of biological macromolecules, such as proteins, nucleic acids, carbohydrates, and lipids. They provide the structure of cells and perform many of the functions associated with life. The chemistry of the cell also depends upon the reactions of small molecules and ions. These can be inorganic (for example, water and metal ions) or organic (for example, the amino acids, which are used to synthesize proteins). The mechanisms used by cells to harness energy from their environment via chemical reactions are known as metabolism. The findings of biochemistry are applied primarily in medicine, nutrition and agriculture. In medicine, biochemists investigate the causes and cures of diseases. Nutrition studies how to maintain health and wellness and also the effects of nutritional deficiencies. In agriculture, biochemists investigate soil and fertilizers. Improving crop cultivation, crop storage, and pest control are also goals.

View More On Wikipedia.org
  1. N

    How to Design a Protein from Primary to Quaternary Structure?

    Homework Statement I am to create "my own" protein that follows the primary structure, then can be formed to follow the secondary structure, and so on until of course the quaternary structure. I am looking for some help on creating my protein so that it meets these needs (first follows the...
  2. J

    Purpose of aromatic rings in biochemistry?

    May I ask what are some of the reasons we see so much aromatic, hetrocyclic chemistry in biology? I realize that several amino acids are aromatic and so to nucleic acids, other biomolecules. What exactly do the aromatic rings bring to biology in order for us to see it so profusely utilized?
  3. O

    Schools Biochemistry Degree: What are my Grad School options?

    Hello, I'm in something of a unique situation. I was a Cell & Molecular Biology major, but I have since realized that I'm really more passionate about Chemistry. I am deeply considering changing my major to Biochemistry (the degrees have significant overlap at my university but are offered by...
  4. N

    Chemistry Is Biochemistry a Secure Field for Job Outsourcing?

    For those of you familiar with my last post was about the career stuff. well i narrowed it down to biochemist. this part is just for fun and unrelated project that is already finished. i just want to know if biochemistry is a good field to go into for both academic careers and industry.
  5. W

    I have a titration question dealing with biochemistry

    Homework Statement You are titrating a 75 mL volume of 33 mM lactate buffer (pKa 3.86) with 1.3 M HCl (starting fully deprotonated). What is the pH after you have added 1 mL of the HCl? Give 2 decimal places Homework Equations pH = pKa + log[A-/HA] The Attempt at a Solution I don't...
  6. A

    Programs Cognitive Neuroscience: Chemistry vs Physics for UC Davis Biochemistry Major

    I attend UC Davis, which doesn't offer Neuroscience as a major. What is the next best alternative if I want to go into cognitive neuroscience? I'm currently majoring in Biochemistry. Is that the best major for Cognitive Neuroscience? If not, what is? According to wikipedia:" Due to its...
  7. A

    Why are sugars found predominantly in D-form in biochemistry?

    Hello, My question is in the title :) I have just started working on my biochemistry course, and the textbook says that 'all sugars found in food and in the body are in D-form (the L-form can be found in rare cases in some plants and micro-organisms)'. But it doesn't explain why or how...
  8. C

    What's a good field to combine with molecular biology and biochemistry?

    So I'm about to graduate with a degree in molecular biology and biochemistry. I don't want to do grad school right away; I want to try to get some private sector experience first. I'm open studying pharmacology, toxicology and such, but I'm really more interested in industrial and...
  9. C

    Biochemistry: Henderson-Hasselbalch Problem

    Homework Statement How many moles of base would be needed to titrate one mole of this fully protonated peptide to a pH of 4.00? This polypeptide is V-A-Y-K-H. Homework Equations Henderson-Hasselbalch: pH= pKa + log[A]/[HA] pKa of alpha COOH = 2.4 The alpha COOH (at the...
  10. J

    Biochemistry: pH of L-glutamic acid

    Homework Statement Calculate the pH of a solution of L-glutamic acid in which the ionic species with a net charge of -1 is 5 times greater than that of the isoelectric structure. (Refer to pKa Table at end of problem set). Homework Equations pKa for glutamic acid: -COOH = 2.19...
  11. I

    Biochemistry or Genetics? A math concern

    Hello, this will be my first post- so, apologies if I've accidently broken any forum rules. Anyway, my question is this: Should I major in Genetics or Biochemistry? As of now, I'm leaning toward biochem (I would love either major- biochem just covers more of my interests). However, my...
  12. S

    ACS exams in inorganic and biochemistry. Anybody take them?

    Hello everybody! In about 2 months, I will be taking 4 of the standardized ACS chemistry exams (physical, organic, inorganic, and biochemistry). I bought the official guides for physical chemistry and organic chemistry, and they've been extremely helpful. I blew through the organic chemistry...
  13. V

    Biochemistry and Wave functions

    Biochemistry doesn't use the concept of wave functions because biochemistry deal with big things that are much larger than the quantum realm. But isn't it that stochastic quantum process can affect the probability of certain occurences that can amplitude up and affect Biochemistry? Chaos and...
  14. O

    Biochemistry: Why does a high pH kill/inhibit yeast function?

    I am conducting a wine analysis experiment for my undergraduate biochemistry course and am a bit stuck on the influence of pH on yeast function. Why does a high H(+) concentration kill the yeast or inhibit its growth/metabolisation of the glucose? I am guessing that the hydrogen ions somehow...
  15. Femme_physics

    Do you study organic chemistry before biochemistry?

    My studies have nothing to do with biology, but I'm just a curious gal so I thought to pick up some ebooks or whatever. I got a good biology base and a good chemistry base, but I never tackled anything in the realm of organic chemistry. I'm more interested in learning about the chemistry of...
  16. S

    How to Prepare for a Biochemistry Spot Exam?

    Hello everyone, I'm in a hectic exam schedule at the moment and I have my biochem spot exam in 5 days time. I spend much time studying for theory and MCQ so I'm really crammed for this. I'll post various questions here, if you can help me. They are mostly common sense ones, but I'm not very...
  17. nukeman

    Chemistry What careers for a PhD in Biochemistry ?

    Hi all, I got another thread going, but I am getting some great info so want to expand in another direction. If I was to get my Bsc in Chemistry, and my PhD in BioChemistry, or Microbiology, what careers besides being a MD can I look forward to in the medical field ? (not interested in...
  18. P

    Are My Glycolysis Answers Detailed and Correct?

    I don't know if my answers are correct or not; are they detail enough? Please check them. Especially questions 7 and 8. Thanks! 1) Is the conversion of 2-phosphoglycerate to phosphoenolpyruvate a redox reaction? Ans: No, because there is no transfer of electrons. 2) Explain how fructose...
  19. S

    Evidence of extraterrestrial biochemistry ?

    Evidence of extraterrestrial "biochemistry"? The linked article claims the apparent depletion of H2, acetylene and ethane from the surface of Titan might be evidence of "life" since (the authors claim) there seems to be no likely simple set of chemical reactions that would account for for this...
  20. R

    Biology vs Biochemistry vs Chemical Engineering?

    I'm planning on going down the medical path. Will a Bachelor in each of these prepare me for the MCAT and what I'll see in medical school? Less importantly, how "sellable" are these degrees relative to each other (should the medical path not work out)?
  21. M

    Chemistry Bachelors of science in biochemistry

    Hello everyone, I've just completed a bachelors of science in biochemistry and am now considering entering a masters in bioproceessing/chemical engineeering. Is there anyone who has gone through the same academic route or anyone who currently works in the field on this forum? If so, do you...
  22. Y

    Biochemistry at UBC or Waterloo?

    I got offer from both science faculty at UBC and University of Waterloo for undergraduate studies. The program i applied for at waterloo is called "Science and Business" and it's co-op mandatory which I really like because many people told me that working experience is more important than...
  23. S

    Exploring the Intersection of Biochemistry and Physics in Health Research

    Hi, I'm a sophomore in college right now, pursuing my B.S. in biochemistry. However, I'm taking calc-based physics II right now and I really love physics (plus I'm pretty good at it). I want to do research related to biochemistry and health for a career, and I would like to know what physics...
  24. P

    Biochemistry - Calvin Cycle Question

    Homework Statement An illuminated suspension of chloroplasts is actively carrying out photosynthesis. What would happen to the levels of 3-phosphoglycerate and Ribulose 1,5-Bisphosphate if the light was suddenly switched off? Homework Equations The Attempt at a Solution I...
  25. L

    Biochem Lab: Action of Lipase & Bile on Milk

    Homework Statement Action of lipase and bile on milk (Lab) (Biochemistry) Homework Equations None The Attempt at a Solution I can't find information on this lab anywhere! My teacher isn't helping much, so I was hoping for any help whatsoever. Thanks! It's a planning lab - I need...
  26. J

    Engineering Biochemistry vs. Chemical Engineering

    i'm not exactly sure what i want my future career to be (my interests keep changing) but right now I'm set on engineering. i did a little research and I've narrowed it down to either chemical or systems design engineering. if there are any chemical engineers out there, why did u choose this...
  27. S

    Help with Biochemistry Homework: Formic Acid, pH & Buffer Solutions

    Homework Statement Hey, have this question which i just can't wrap my head around, any help would be appreciated. Formic Acid (HCOOH) - pKa = 3.8 is a weak acid that partially dissociates to form its conjugate base (HCOO-) and releases protons into aqueous solutions. Whats the pH of a solution...
  28. S

    Biochemistry pka and pH relationship

    Homework Statement If a solution of a weak acid contains more HA than A-, then Homework Equations - The Attempt at a Solution the answer is pH > pKa. Okay my question is why is this the answer. I'm trying to understand in what situation you would have the pH greater or less...
  29. K

    Speculative Biochemistry: Because Earth is just one planet.

    Let's speculate! For background, I am a neurobiology student. Ergo, I've got the requisite chem n' o-chem under my belt. (Would like to fit in some biochem, but I don't know if that's possible right now.) From my own perousing of the material on the internet, it seems that carbon is...
  30. H

    What are the links between organic chemistry and biochemistry

    and why is biochemistry important in medicine? I kind of know why, but i can't find that much information so I am stuck and i need a bit of help if anyone could help me? Ive read that organic chemistry serves as a basis of biochemistry and biochemistry is the study of chemical processes in...
  31. M

    What are the Oansasat Imktti studied M.Sc. in Biochemistry

    what are the available fields for a M.Sc. in Biochemistry? please help in subject as list
  32. D

    Programs Biochemistry major I need advise on picking a minor

    Biochemistry major... I need advise on picking a minor... I'm a sophomore majoring in 'Biochemistry & Molecular Biology'. My plan is to pursue a PHD in the bio-sciences (biochemistry, biophysics, bio-engineering) or maybe Nanotechnology. Between Philosophy, Physics, Math, and Computer...
  33. T

    Biochemistry Courses: Tips & Advice for Achieving an A

    Hello everyone, So I was interested in knowing how much work is usually needed to end up with a good grade (A) in this course? I am going to be taking this course sometime in the future, probably next year, the first part will be about structures and physical properties of biomolecules and...
  34. C

    Competitive inhibitors (biochemistry)

    Homework Statement Ethanol in the body is oxidized to acetaldehyde by liver alcohol dehydrogenase (LADH). Other alcohols are also oxidized by LADH. For example, methanol, which is mildly intoxicating, is oxidized by LADH to the quite toxic product of formaldehyde. The toxic effects of...
  35. G

    B.A. in Biochemistry -> Ph.D. in Biomedical Engineering?

    B.A. in Biochemistry ---> Ph.D. in Biomedical Engineering? Hi everyone, I've been freaking out a bit about grad school and wondering whether I have a chance. The guidance at my small liberal arts college is good, but I doubt that even one person per year goes on to grad school in BME, so the...
  36. C

    What is the difference between biochemistry and organic chemistry?

    What is the difference between biochemistry and organic chemistry?
  37. epenguin

    Most Chemistry is Biochemistry?

    This has stimulated me to get around to posing a question I've meant to for some time. Chemistry gets classified among the 'Natural Sciences'. Yet there is nothing very natural about it. Most of the chemistry you will ever see, you will see only in the laboratory or the factory. You not...
  38. C

    Schools Taking biochemistry at university

    Im thinking about possibly taking biochemistry at university but I am not sure if I need to take physics as well. The program doesn't require u to take it, just biology and chemistry but is it best to take physics as well? It is a bachelors degree in biochemistry.
  39. F

    Second year university biochemistry - pH and Buffers

    Homework Statement This question is for a lab write up. We prepared a 0.1 M citrate buffer with pH 4.0, we then diluted our buffer with deionized water 20 fold and then 50 fold. The subsequent changes in pH are as follows, 20 fold pH = 4.10 50 fold pH = 4.14 This confuses me because I have...
  40. K

    Is a Biochemistry Major Sufficient for Graduate Studies in Bioengineering?

    I'm a Biochemistry major at the moment, as my school doesn't offer Bioengineering. My main interests lie in Neural Engineering for graduate school, as my research experience in undergrad has been mainly Neuroscience based. Will I get equal consideration for programs in Bioengineering if I didn't...
  41. K

    Studying Surviving Gen Bio: Tips for the Pre-Med Biochemistry Major

    So I'm beginning college in the Fall. Considering I'm going to be a Biochemistry major, does anyone have any advice as how to survive Gen Bio? I hear it's a big weed out class for the Pre Med kids. I'm also taking Gen Chem and Calc I, both which I feel confident in, since I've studied it by...
  42. B

    Biochemistry, how much knowledge of Math is needed?

    Hi everyone, I will be pursuing a degree in biochemistry/biotechnology, and my question was exactly what or how much of mathematics would be important to understand fully most of the concepts coming from the chemistry courses that I will take? Most of my chem courses in upper years would...
  43. L

    Glycolysis & Creb Cycle Biochemistry

    Can someone help me out?? 1. The synthesis of glucose from smaller precursors is called: a) gluconeogenesis. b) glycogenolysis. c) glucosynthesis. d) glycolysis. e) none of the above I think the answer is A. gluconeogenesis...because gluconeogenesis is from puruvate back to...
  44. M

    Help with real-life biochemistry lab math problem.

    I have this practical problem in my laboratory and would like to see it formulated in a formal calculus way, but my math skills were never very high and they are very rusted now and do not know how to formulate (much less solve) the problem. A biological sample containing a virus is run...
  45. L

    Biochemistry Help: Answers to Proteins, Helix & Hemoglobin/Myoglobin Questions

    Biochemistry Help :) I need help ...can someone help me out please :) 1) Denatured proteins (‘1’) have higher viscosities than their native conformation counterparts. (‘2’) have higher water water-accessible surface area compared to their native conformation counterparts. (‘3’) have...
  46. D

    Programs Which major? Biology, Biochemistry, Bioengineering?

    Hi, I am a Senior in HS and I am on the edge of completeing my college apps but I am still not sure what to put as my major... I love biology, but especially on the micro level. For this reason, would love to work/take courses on anything that has to do with either cells, their structures, or...
  47. Hootenanny

    What caused the unexpected curve in my cellulose to sugar conversion process?

    My coursework was to basically develop a process to turn cellulose into sugar. I decided to use a strong acid to hydrolyse the acetal linkages in cellulose to form D-glucose. I wanted to find the optimum conditions for the process starting with concentration. So I plotted a graph of...
  48. A

    What Are the Basic Pathologies Related to Sugar Metabolism in Humans?

    Biochemistry pathologies.. ?? Hey guys.. I'm trying to set straight in my mind the basic pathologies relating to sugar in the human. Mainly, the various types of diabetes and hypo/hyperglycemia. We covered the basics in my biochemistry class, but we did it all so fast that I got lost...
  49. P

    What sets biology apart from biochemistry?

    What is the difference between biology and biochemistry?
Back
Top