Skeletal

Question: What is the skeletal structure of the indicated species from the reaction below? What is the skeletal structure of the indicated species from the reaction below? http://www.webassign.net/userimages/kasandbe/221spr01HW19C.gif 1) Diene A? 2) Dienophile B? Any help would be greatly appreciated.

Answer: The reaction is a thermal Diels-Alder reaction, involving an electrocylic reaction between diene and dienophile. Diene A is 1,2-dimethylenecyclobutane, and its SMILES code is cc1CCc1c Dienophile B is 1,4-benzoquinone, which might also be called p-benzoquinone or cyclohexa-2,5-diene-1,4-dione. Its SMILES code is c1C(=O)ccC(=O)c1 SMILES codes can be input into the depction utility at: http://www.daylight.com/daycgi_tutorials/depict.cgi If you change the size of the image size to XL or XXL you will also be able to get a nice illustration of the entire reaction. In the SMILES code for the reaction (below) I have put a spce between the two greater than signs "> >" because Yahoo! Answers cuts off expressions that are two long. You will need to remove the space for the input into the depiction utility. Separated SMILES code for the reaction: cc1CCc1c.c1C(=O)ccC(=O)c1> >c12CCc1CC(C3C2)C(=O)ccC3(=O) NB: Sometimes there are multiple SMILES codes to produce the same image, and some codes include indications of stereochemistry whilst others do not. The codes I have given do display in the depiction utility I have indicated, at least for me. If they don't for you, googling for the names of the diene and dienophile should get you links where the structures are shown. I am sure wikipedia would cover quinones, for example, and also Diels-Alder reactions.

Question: How does the muscular, nervous and skeletal system work together? please help me out how does the muscular work with the nervous? muscular with skeletal system? nervous with skeletal? and all together please help me out i need help with my project? and can you please make it simple

Answer: umm im not sure of all of them...but i would say that some parts of the muscular system are involuntary so the nervous system can control it and send signals to move certain muscles. the muscle and skeletal...well muscles and bones usually need to work together to support, protect and contract/relax muscles. im not sure about nervous and skeletal. i think that the skeletal system protects the nervous system like the skull and brain or the spinal cord and the backbone?? or about all together sorry

Question: How can I differentiate smooth from skeletal muscle when not zoomed in? I keep reviewing the muscle section of histology, so I know the differences between smooth & skeletal muscle, but I have to zoom in on the nuclei to differentiate them. I see people all the time just point to an organ and from pretty far away they can tell smooth from skeletal. Is there something I haven't noticed?

Answer: Hey, If you're talking about a histology slide from far away, the difference is in the striated or non-striated appearance of the cells. In smooth muscle the cells are sort of blobbed around one another. Also, you'll notice that towards the edges of lides the cells become less tightly packed together. In contrast skeletal muscle is much more tightly packed together, no loose edges or gaps between cells. There are some cases where you will be unsure and have to zoom in to decide which is which, but for slides whihc are clearly at one end of the spectrum or the other, a bit of practice will get you intuitively knowing. here's some slide from my uni which helped me, see how they work for you: http://www.kumc.edu/instruction/medicine/anatomy/histoweb/muscular/muscular.htm If you're talking about telling the difference on a whole organ eg a dissected piece of stomach compared to a chunk of bicep, there's bigger differences to look for. The first is obvious: smooth muscle looks smooth (any roughness is only on the surface) whereas skeletal muscle is striated and looks fibrey.

Question: What is the effect on skeletal remains from battery gasses? Submarines of the past were electric driven when submerged, supplied by battery power. In accidental sinkings, or otherwise, the gases are corrosive and metal destructive. What is the effect on skeletal remains? Consideration of retrieval years later as in discovery of a previoiusly unknown location with the knowledge the crew is still inside. Thank you The midget submarine of Iwasa Naoji and Sasaki Naokichi was buried at the Pearl Harbor Submarine Base as landfill toward end December '41 with crew inside. See note #5 at bottom of the page: http://www.combinedfleet.com/Pearl.htm Iwasa, command leader, at top of painting photo. photo #54302 sub prior to burial: http://www.history.navy.mil/photos/sh-fornv/japan/japtp-ss/mdg-a-2.htm .http://www.history.navy.mil/photos/images/h54000/h54301.jpg At the lower right is a ship. From the bow at the two o'clock position, across the tongue, is the sub burial site to be. [photo ca. 1940] "It [submarine] was rediscovered in 1952, but reburied at the same place because chlorine gas had eaten away all its contents. The remains of the crew are still inside."

Answer: I think that unless the remains are in a closed compartment where the batteries were located they are likely to be unaffected. It seems likely that bulkhead hatches would have been secured prior to the sinking, but implosions, leaking valves, and other damage might have opened those compartments to the sea. The real problem is probably not the gases, but the acid contained in the lead-acid batteries. Under some conditions this acid is likely to leak from the batteries and if confined, would affect the compartment. However, if there is enough water to dilute the acid, it is likely to have very little effect more than a few feet from the batteries. Seawater has a pH of about 7.5-8.5, so it is slightly alkaline, and contains many salts that act as buffering agents, so where there is any circulation of seawater at all, the acid is unlikely to have had much effect on anything. http://www.biosbcc.net/ocean/marinesci/02ocean/swcomposition.htm You don't mention the time period that the sub has been down, so it is hard to speculate on what condition remains would be in. Marine organisms are likely to have taken a toll. The relatively recognizable surfaces visible on the wreck of the Titanic are probably only that clean because of the extreme depth and near-zero bottom temperature. Here is an interesting article on submarines as a class of archaeological site that discusses some of the political implications: http://www.abc.se/~pa/publ/submarin.htm If you are looking at a U-boat you should visit u-boat.net: http://www.uboat.net/index.html Something to consider about U-boats is that they used liquid mercury as ballast. This might be a hazard, or might even have some salvage value. Many years ago I was offered a job working as a commercial diver in the salvage of a U-boat in Central America. I passed on the opportunity because the pay was sketchy, but have often wondered if I should have taken the chance. Another site with information on submarine technology: http://www.naval-technology.com/projects/type_212/ The other thing you must consider is the depth. At very deep depths in the ocean there is a level known as the Carbonate Compensation Depth (CCD). This is often at 4000 to 5000 m, so it is probably unlikely to be a concern. Below this depth anything with calcium in it will eventually dissolve, which includes human bone. However, there have been remains recovered from shallow (30 m) water from ships that went down in the late 1700's. The HMS Pandora is an example. http://www.qm.qld.gov.au/features/pandora/human/

Question: What are the names of the three different human skeletal systems? Once I learned that the human skeletal system came in three original forms. They had names which I forgot, but it was pretty much white, black, and Asian, to be so crude. I would like to know the names of these three skeletal systems. I just found the answer. Lets see who else can find it?

Answer: your question is too vague what is the exact question on the test?

Question: What is the skeletal equation of copper sulfide plus diatomic oxygen producing pure copper and sulfur dioxide? My chemistry homework's confusing me I have to write the skeletal equation for that as well as baking soda (sodium hydrogen carbonate) decomposing to form sodium carbonate, carbon dioxide, and water. What would the skeletal equations for that be? Thanks in advance ;) Much appreciated.

Answer: CuS + O2 ---> CuO + S NaHCO3 ---> Na2CO3 + H2O + O2

Question: How does the shape of a skeletal muscle help its function? Original question: Describe why it would need that shape in order to function properly. In other words, how does its shape help it in its functioning? **talking about skeletal muscle

Answer: it allows us to move and helps our organs to stay safe

Question: what is the importance of the skeletal system? I need to write a 200 word paragraph on the importance of the skeletal system or tissues of the body. I need lots of ideas. I know this is an easy topic, its just that my book only gives a paragraph about it. This has to be in my words. PS thanks for answering everyone.

Answer: well, let's see, -it serves as the body frame without it you'd be a useless heap on the ground lol -it produces blood cells through the marrow -it allows you to run, jump and do the things you can do -hmm what else -also you could add this, that the bones are strong but lightweight and that they're only 20% of our body weight contrary to what most people think:bones are what make us heavy -here: got this from my book: it provides shape and support, enables you to move protects your internal organs,heart,lungs,brain produces blood cells stores certain materials like calcium till your body needs them best answer>\? if you think i deserve it?

Question: What is the skeletal structure of nail polish? In school I'm doing a project in which the skeletal structure of nail polish needs to be found to determine whether it is polar or nonpolar. By skeletal structure I mean the elements in it and how they are bonded. Thanks, and please answer if you know it!

Answer: Definitely non-polar reagents, can't draw or illustrate the coloring agent because it's very complicated. But the solvent is mostly Ethyl Acetate or Butyl Acetate. Ethyl Acetate: CH3-COO-CH2CH3 Butyl Acetate: CH3-COO-CH2CH2CH3 Quote from Wikipedia.org: "Most nail polishes are made of nitrocellulose dissolved in a solvent (e.g. butyl acetate or ethyl acetate) and either left clear or colored with various pigments. Basic components included are: film forming agents, resins and plasticizers, solvents, and coloring agents. Adhesive polymers (e.g. tosylamide-formaldehyde resin) ensure the nitrocellulose adheres to the nail's surface. Plasticizers (e.g. camphor) are chemicals that link between polymer chains, spacing them to make the film sufficiently flexible after drying. Pigments and sparkling particles (e.g. mica) add desired color and reflecting characteristics. Thickening agents (e.g. stearalkonium hectorite) are added to maintain the sparkling particles in suspension while in the bottle. Ultraviolet stabilizers (e.g. benozophenone-1) resist color changes when the dry film is exposed to direct sunlight."

Question: If skeletal muscle had no transverse tubules, would action potentials still be able to trigger a contractio? If skeletal muscle had no transverse tubules, would action potentials still be able to trigger a contraction? Explain your answer.

Answer: Not sure. I think your best bet would be to google this for a proper response. Google scholar will actually be your bets bet in my opinion. Good luck!

Question: What are the primary functions of the skeletal system for the frog? And also, what other functions does the skeletal system do for humans?

Answer: The skeletal system performs many functions which include: 1. Support the body. 2. Protect vital organs such as the heart. 3. Move the body Comparison Of the Frog and The human The axial and appendicular both make up a frog and human's skeletal system. For a frog, the skeletal system's main function is locomotion and maintaining posture. Although the human and frog skeletal system also protect vital organs the frog does not have any ribs whereas a human does. The frog also has less number of vertebrae, extended pelvic bones, and long bones of the hind legs. The frog skeletal system has l59 and the human has 206. The human's skeletal system is a moveable frame and is an efficient factory for producing red blood cells. The frog's skeletal system also produces red blood cell and all their bones are covered with a membrane called the periosteum from which they get their circulation nerves.

Question: What are the five important functions of the skeletal system? What are they? and also What are the two division of the skeletal system? i got all 33 questions but dont know these 2.

Answer: The skeleton provides the framework for the body. Bones provide the basic shape and structure for the body. The skeleton protects organs in the body. Bones can cover and protect many of out major organs. - cranium: protects the brain - sternum: protects the lungs, heart and some digestive organs - pelvis: protects and supports the digestive and reproductive organs. - spinal column: protects the spine. Bone Marrow in the skeleton produces new blood cells and damaged blood cells are repaired. Movement. The bones are the levers that help the body move in different directions and in different ways. The skeletal system helps in Mineral Storage. It is a substance that the body needs to carry out all of our bodily functions like thinking, breathing and moving around. One of the minerals that the body needs is calcium. Calcium is a major part of bone, and this is where the body stores its calcium. The Skeletal system is also a form of Attachment. The bones of the skeleton provide an attachment surface for muscles, tendons and ligaments. With regards to the two divisions: It's the appendicular skeleton & the axial skeleton. The term "appendicular skeleton" refers to the bones of our appendages, the arms & legs, & the bones that attach them to the other major division of the skeletal system, the axial skeleton. The appendicular skeleton's upper portion includes all the bones of the arms and hands plus the pectoral girdle, which is formed by the collar bone (clavicle) and the shoulder blade (scapula). The appendicular skeleton's lower portion includes all bones of the legs & feet plus the pelvic girdle, which attaches the lower appendages to the axial skeleton at the sacrum. The axial skeleton is composed of the entire vertebral column including the sacrum & tailbone, the skull, the ribs & sternum, and the bone which is located under the lower jaw.

Question: How long does it take for skeletal remains to exist in a ship wreck? When I enquired on Yahoo Answers about the existence of skeletal remains of passengers on the "Titanic" when discovered (which sunk in 1912 )many replied that such remains cannot be intact in the sea for such a long period. But on the "Pandora" which sunk in 1795 it was reported that there were skeletal remains of some passengers this baffles me.

Answer: It depends upon where the ship sank. For instance, the environment of a muddy bog is ideal for the preservation of skeletal remains. Some remains have kept quite well for hundreds, even thousands of years, with skin and hair, nails and teeth, still intacted and even half digested meals still sitting in its stomach waiting for forensic scientists to examine them. I have not heard of the Pandora incident so I cannot comment on that. As for the Titanic, it can be possible. I do not know the climate down there but if it is cold enough or if the sea is salty enough then possibly preservation of such things could occur, as long as there isn't any strong currents present to sweep things or drag things around and damage remains. But can preservation occur if the remains were on the ocean floor literally? If you find out let me know. It makes an interesting conversation. Wait a minute, I did not take into account deep ocean pressure, nor sea floor acidity due to volcanic fumes in certain areas and such, nor overall sea floor organism I am not familiar with.

Question: What is the function of a skeletal muscle cell? What does a skeletal muscle cell do, like what is it's job?

Answer: I think you can get a better idea of the skeletal muscle cell if you compare it to the other two types of cells: smooth and cardiac Skeletal is what you'd normally think of when you think "muscle". Examples are biceps, etc. You use them to lift weights or whatever. These are the ones you control Smooth are muscles you can't control that are in places like your intestines and stomach and other such organs. They do more of the vital, yet unconcious bodily functions Cardiac is only in your heart and keeps your heart beating (you can't control it)

Question: You perform a laboratory experiment where you place a piece of skeletal muscle in a calcium-free medium. What? You perform a laboratory experiment where you place a piece of skeletal muscle in a calcium-free medium. What would happen if you depolarize the muscle membrane? What would happen if you depolarize the somatic motor neuron innervating the muscle?

Answer: Nothing. Assuming there is no Sarcoplasmic reticulum in the muscle, there is no Calcium anywhere. You need calcium to make the muscle contract (it moves troponin to expose binding site to contract muscle). Since there is no Ca, the muscle wont contract.

Question: How can i tell when the skeletal system malfunctions? need help on this question. this is from a biology presentation i have to do. it is based on the skeletal system.

Answer: ...well look at the basic skeleton first off then compare one that has "malfunctioned" simply by appearance... the differences should be obvious