biol+3+guess+the+picture+aos1

This section contains images that are partially hidden. Your task is to suggest what the image represents and WHY. If you have no idea then perhaps write what information you can extract from the obscured image. When everyone has given a suggestion, the image will be revealed further. Make sure you include your intials after your suggestion. Feel free to add your own image (be wary of copyright) for others to try and guess.



Write your suggestions below for image 1a. I think that it might be either a structure of a nucleic acid or a protein. Both these organic molecules contain the elements that can be seen - hydrogen, oxygen and nitrogen. I think it might be a nucleic acid though, maybe the nucleotide structure, showing the nitrogenous base, the sugar and the phosphate group. That would explain the nitrogen in the top right corner - ie. the nitrogenous base. AH

This image can either be narrowed down to a proten or nucleic acid which both contain the elements carbon (hidden in the picture), hydrogen, oxygen and nitrogen. I agree with AH, and think this image might be the general structue of a nucleotides (which is the monomer of nucleic acids) The oxygen in the left hand corner might be part of the phosphate group, thus i would expect to find a phosphate, hydrogen and oxygen on the left hand side beneth the covering. **//xoxo gossip girl//**

Both of the above contributions are excellent, showing some important understanding of biomolecule structure. VM



Write your suggestions below for image 1b.

Ok now I am almost certain this is the general structure of a nucleic acid monomer, a nucleotide. Mainly because this organic molecule contains the elements carbon, oxygen, nitrogen and phosphate. Three of these elements are present in the image. In the above picture we can see also see the three things that make up the nucleotide structure- the phosphate group on the left hand side (can be identified immediately due to the presence of the phosphate element), the nitrogenous base in the top right hand corner (can be immediately identified due to the presence of the nitrogen element) and lastly, the ribose sugar can be seen at the bottom. **//xoxo gossip girl//**



Write your suggestions below for image 2a. I think it might be a protein, only because I read that a protein's tertiary structure has a 3D shape, and this picture looks like a bit 3D. AH

I think image 2a is also a __protein__. There are several levels of protein structure (primary, secondary, tertiary and quanternary) that each give rise to a unique 3D-shape. The //tertiary level// of protein structure are sulphur and hydrongen bonding between R-groups to form //folding and functional shape.// //**xoxo gossip girl**//

I also think this image is a protein as it has a unique 3D-shape that is essential to the role of the protein. Any change to the shape can result in the function of a protein to be impared which is highly harmful to cell functioning. xx Chicken soup

ITS A PROTEIN :) (roast chicken) I WIN TAM!

Write your suggestions below for image 2b.

its a protein! DUH!! (th)



Write your suggestions below for image 3a. This picture looks a bit like a microscope slide or something. Maybe it's from a plant and it's showing one of the polysaccharides like starch, or possibly the cellulose in the plant cell wall. AH

This image is defiantly of something zoomed in- but i am unsure. Notice on the bottom right corner it has a date -1/7/0 maybe thats a clue. Also REMF?? What does that stand for?? **//xoxo gossip girl//**

The top right corner seems too look like it has rough endoplasmic reticulum and possibly a nucleus with nucleolis inside and a nuclues membrane surrounding it. The left box near the bottom of the picture has a structure toward the bottom of the box that looks like golgi. Not sure what the other box is though. xx boiled Chicken

That last comment was very stupid Chicken. Your really dumb. VM Hahaha, that 's very funny, but Chicken breast, if you go to the top of the page and click on history you will see who is the real culprit of the above statement! VM



Write your suggestions below for image 3b. this picture seems to be a slide of a cell, the darkish line look like the golgi apparutus which packs and adds (carbohydrates) to the substances that pass through it -sar:)

Your logic is excellent here but what is also present that might indicate that you are viewing the golgi (are than the dark lines)? VM

The presence of vesicles forming at the ends of the structures used for the packaging of substances such as proteins to travel within the cell of out of the cell via exocytosis.(duchess elise)



Write your suggestions below for image 4a. this picture shows exytocytosis as something seems to be exiting the cell it also could be (but i dont think so!) an enzyme as there seems to be a puzzle like shape - sar :)

Way to go Sar! You have put forward some appropriate points for the others to consider. VM

I agree with Sar...I think that it's exocytosis because it's showing the progressive diagrams and then the arrows indicate something exiting the cell - Alexandra. Hmmm... possibly but you assume it is a cell. What else could it be? VM

i think its and enzyme because the 2 arrows are indicating a catabolic reaction has occurred and 2 substrates have been produced. there is also and obvious active site which is a must have for an enzyme! the progressive diagram therefore makes sense as it could show the 1 substrate approaching the enzyme, then been broken down into 2 products, to be then released from the enzyme. (th)

Well TH, I think you have provided some terrible thoughts here about the image. Your gonna fail this subject you sillllllyyyy perssssoonnnn! VM It seems our gossip girl has got nothing better to do than edit comments made by others and not acknowledge that they are now her comments. VM I wrote "excellent thoughts" and "Way to go!" VM



Write your suggestions below for image 4b.



Write your suggestions below for image 5a. this picture is endocytosis which is in the form of receptor mediative - sar :) question about this type of endocytosis--> are the molecules that are being ingested just let free when enetreing the cell or are they enclosed in vesicles or can it be both (i'v got two diffreent diagrams)- sar:) great question but I will put my thoughts in the faq section, although maybe someone else could write an answer below. VM

OK sar, this is important, can you say why you think its endocytosis (receptor mediated)? VM

I agree with Sar again :-) Anyway, the reason I think that it's receptor-mediated endocytosis is because of the pictures they use to represent the receptors. They are lined up along the plasma membrane of the cell awaiting one of the substances (represented as shapes) to bind to them. You can also see what appears to be part of the vesicle that is passing into the cell cystoplasm, and you can just see one of the receptors on the inner lining of the vesicle, as the cell has ingested the substances, including the receptors. - Alexandra.

It seems that the image may be showing too much, although your analysis is very logical. You will have to wait and see. VM

this is definitely receptor mediated endocytosis because i have this exact picture stuck up on my wall at home:D (th)

I also agree with my fellow smart bioligists that this is receptor mediated as its showing the receptors that are in the 'pit' and specific substances waiting to bind with the specific receptors. I know i repeated everything but it made me feel a bit smarter:) ...mc chicken burger

I also agree with my fellow smart bioligists that this is receptor mediated as its showing the receptors that are in the 'pit' and specific substances waiting to bind with the specific receptors. I know i repeated everything but it made me feel a bit smarter:) ...LOZZ :)



Write your suggestions below for image 5b.