Biology Definition and 572 Threads

Hello! I'm studying for a biology midterm coming up and I would really like to get an idea of the kind of questions that might end up on the exam. Most of my classes have old exams available online/at the library but for some reason the biology department doesn't allow the library to publish...

today's biology lession our teacher about cancer he said that if we travell somewhere by aeroplane, it's equal to take X-way 3 times i don't understand why we have radiation through traveling by aeroplane can someone explain to me, please thank you so　much

Okay, I know this is a really dumb question, but is it true that their subjects are both devoted to studying Immortality?

How important? My university requries at least 1 year of Biology in a high school, but I didn't take it.

First time I've ever heard of anything like this: http://news.yahoo.com/s/ap/20100213/ap_on_re_us/us_ala_university_shooting

Question given. Predict how the average life span of a nerve cell located in the brain differs from the average life span of a red blood cell. Provide a basis based on cellular features. I know that the average life span of a nerve cell is the life span of the organism which it lives in. The...

Hopefully with my limited knowledge of physics I can make this make sense, and please correct me if I'm mis-using any terms. What I am trying to figure out at least a rudimentary model or explanation for is how "work" peformed by the human body varies based on efficiency for the same "work"...

The title pretty much says it all... would a degree in biology open up many venues compared with, say, a degree in chemical engineering or biochemistry? I'm doing pre-med but would like something to fall back on if that doesn't work out.

Homework Statement What would happen to the level of ATP synthesis in the respiratory chain if you make the intermembranal space more acidic more acidic? What if it were made more basic? Homework Equations The Attempt at a Solution ATP synthesis is triggered by chemiosmosis - the flow of H+...

How many biology courses on average should i expect to take if i plan on majoring in either computer or electrical engineer? I know every college has their own requirements but do i need to go really in depth with bio or will an AP biology credit get biology out of the way as far as...

Q.) Name five organelles found in Eukaryotic cells and outline their function. A.) Endoplasmic reticulum - Network of membranes which are continuous with the nuclear envelope. The is involved in protein synthesis. It can produce these proteins because it has ribosomes embedded in its membranes...

i was thinking, if we are made up of protons and neutrons at a subatomic level then pain,disease and all our ailments are specific arrangements of subatomic particles. would not our goal be to reset the energy arrangements to a time when we were well(i know this is far fetched in relation to our...

Are Mitocondria and Chloroplast has membrane or envelope ( double ) ?

I need to find the instructor test questions of the Campbell Biology. Does anybody have any idea about where I can find them?

HI.. can you check if i am right this is a true OR false problem the answers i got: T, F T F T T T F F T 11) The free energy of glucose is exactly matched by the total free energy of the ATPs generated in glycolysis and respiration. 12) Unabated at the current...

So basically when I took Biology G/T Freshman year of High School, I never listened in class or did the homework since my life was absorbed by video games (ending with a C average in class, almost a D). Now, as a senior, I am taking Biology AP however I really want to turn over a new leaf (and...

I'm using Campbell's Biology*and I'm really sort of sick of it and wondering if there are better alternatives to it. What do you guys think? Am I alone on this one?

How did you guys like your intro to bio textbooks? What was your favorite and why?

This contains many links to websites providing audio/video courses and lectures in biology and biological engineering from colleges/universities. http://www.infocobuild.com/education/audio-video-courses/biology/biology-and-biological-engineering.html The courses and lectures include...

Hello everyone.. I have got an assignment for biology.. I've done Task 1,2 but i need help with Task 3.. and it says.. [SIZE="4"]Task 3 carry out research using different sources. Explain how the characteristics you used to produce your identification key differ from those which are...

I have wanted to review these ecosystems with other biologists for a while now, usually we just stay on aquarium web sites and just now I found yours. enjoyed reading through the threads and seeing the depth of the discussion, really great place. there is about 10 years dedication into...

Hi, I was wondering about your opinions and recommendations on some biology and chemistry texts, free or not. I want to use these mainly for review for college since I took these courses in high school with biology being AP. Since I'm planning on majoring in one of these, I would like to have a...

Hello. This has been bugging me for a while. If I use an example to demonstrate: A nephew and his uncle and the average relatedness between them. If for some trait, say eye colour, the grandmother of the nephew carries one for Blue (B), and one for Green (G), and the grandfather of the nephew...

Homework Statement Explain why facilitated diffusion, unlike simple diffusion, is both specific and saturable. (Short essay, 4 points) Homework Equations -------------------------- The Attempt at a Solution Is this a good beginning to an answer? I feel like I can never...

Homework Statement You have two solutions - Solution A = 0.5 M NaCl and 0.5 M KCl Solution B= 1.0 M NaCl If Solution A and B are separated by a) a membrane permeable to all three ions what will happen? and b) a membrane that ions can not pass through but that water can, what will...

Hi guys, can someone please tell me the career options for a radiation biology graduate degree please? I tried to search on google but all the results were about research & teaching. The AAPM (American Association of Physicists in Medicine) did say graduates with radiation biology can become a...

Homework Statement Describe the methods by which proteins are clustered in the plasma membrane. Homework Equations There are none really; it's theory. The Attempt at a Solution I understand that the proteins bond with the cytoskeleton (actin microfillaments and intermediate...

Biology -- Calculating Resolving Power of Microscope?? Homework Statement The question is this: Resolving power is a function of the wavelength of light used and the numerical aperature of the objective lens. Given that RP= wavelength / (2 x NA), calculate the resolving power of the...

Which grads are in greater demand right now?

Hi. Do you guys have an idea of what kind of careers are open with a BScHuman Biology degree! And, according to you, which may be more beneficial, a fourth year doing an undergraduate Master (research based) or a 4th year spent on industrial experience? Thank You Kushal

So I'm currently a Physics/Math major with an interest in biophysics. Since biophysics is such an interdisciplinary field, some graduate schools have this area in their biology department, while others have it in their physics department. I looked at MIT's biology site and it says that they are...

Homework Statement Which of the following methods is suitable to sterilize a liquid medium,containing blood serum? (1) pasteurization (2) Autoclaving at 121degrees celsius for 10 minutes (3) Boiling at 100 degree celsius for 10 minutes (4) Filtration using a sterile membrane filter...

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...

Homework Statement Suppose a terrorist bomb has exploded next to a friend and injured him by opening two small openings in his chest wall: one on the left side, one on the right side (assume that no significant internal bleeding has occured). Can you suggest, and explain, the purpose of an...

Hi, My first time on this forum found you when i was googling :biggrin: I wanted to know if i have to take Philosophy if i am studying Teaching Secondary Biology. I have to choice in this group to register for the next term of school here is a list Cinema Appreciation A survey of World...

What do you guys think would be more fun particle physics or molecular biology? I love science and math and i love the idea of working on the most fundamental things of the universe, but i could do more practical things in molecular biology, so I am asking you guys what do you think?

We genetically modified E. Coli with jellyfish genes for flourescence. It was probably the coolest lab we've done yet. No freakin' titrations or counting and sexing any damn fruit flies.

The world has been working more and more over the years to research a way to live indefinitely with health. What ways can you think of that biology can make an indefinite life span for a human? Of course, I am not looking for a sure fire way, I am just looking for brainstorms and ideas.

In my biology class, I've learned that most of the fundamental processes of genetics occur on an atomic level (i.e. DNA, RNA, etc.). Can quantum mechanics be applied?

I am a 16 years old chinese, and i live in Missouri, US. Need some advice about my career, i love Physics. However i don't like biology, but i have to take it next year, or i don't get any other kind science class... It is a waste of time! I wish to quit school and start on my Physics work...

Hey everybody, I'm doing my International Baccalaureate extended essay (2500 to 4000 words) in Biology. please give list of resources for biology ee. Any suggestions for a research question welcome! thanks bi03

yes this is a physics forums but I been coming here for a while (not really posting a lot but meh :P reading) and i notice that there is a biolog section andI'm REALLY interested in biology and I'm applying to university soon... I've noticed that for first year you take general courses for the...

Homework Statement I'm studying for a biology test at the moment and I'm reading about the M Phase of the cell cycle but I can't really grasp where the boundaries between each phase lies. I'm reading my notes as well as wikipedia but neither make it clear which stage each process occurs in...

"Do it yourself" synthetic biology http://www.pbs.org/newshour/science/technology/index.html http://www.pbs.org/newshour/bb/science/july-dec08/diybio_12-30.html

Homework Statement A protozoa that normally lives in the ocean is placed in a freshwater fish tank. What would happen to the water balance in the cell? Use the terms osmosis, turgor, cell membrane, hypertonic or hypotonic. Describe what could happen to this cell (remember to include any...

I am a grade 12 physics student and I am looking into potential topics/concepts for an upcoming physics 'fair-style' project. I have a stong interest in biology, especially zoology, and would like to come up with a project that incorporates both disciplines of science. The assignment is to...

So there are two GRE exams that are very similar - biochemistry+cell biology and biology. Do a lot of biology students take those 2 exams? And what do grad schools think of that? (also, do a lot of them also consider taking the GRE chemistry exam too?) From the initial looks of it, it seems that...

What role do you think variations play in the process of evolution?

Does anyone know of any good books (preferably not introductory textbooks, otherwise I'll never get through them) geared towards or recommended for physicists who are learning biology for the first time? Something like the equivalent of Feynman's Lectures would be perfect, but I'm open to any...

Proteins associated with the plasma membrane can be classified as either integral membrane proteins or peripheral membrane proteins. For the following types of proteins, please specify whether they would be integral or peripheral. Glucose transporter Sodium-potassium pump Ion channel -I...