biol+1+If+a+cell...+task

Hi there budding Biol clan. This task is for H/W and a way to summarise your knowledge of mammalian circulation, as well as strengthen your thinking skills.

**"If a cell is transporting oxygen...."** You are to each come up with as many different conclusions to this sentence. The KEY is to incorporate as many different ideas relevant to the topic. There will be an award for the class if you can exceed my expectations (WHICH WILL BE HIGH!) with regard to the number and diversity of ideas expreseed. To give you some idea, everyone must contribute a minumum of 15 sentences. So go to it! You have til Friday's lesson (4th April). Make sure you put your intials after your responses. You can add to your own list, even after reading others' responses, as long as you use different wording. Here is one example to get you going: then the cell is likely to be a red blood cell.

…it is likely to have been pumped through the lungs and around the body …it was oxygenated by the lungs …it was pumped through the left atrium and the left ventricle …it has travelled through the aorta …it will travel through arteries and capillaries …it will not travel through veins, as veins take blood that is rich in CO2 back to the heart. …to the body, it will then take away carbon dioxide. …it will participate in a gas exchange within the body …the oxygen will diffuse out in the capillaries …it will do so under high pressure from the heart. …it will be apart of the bodies circulatory fluid …haemoglobin will be helpful in the carrying of the oxygen …the cell then becomes vital in the continual functionality of the animal …the cell is part of a closed circuit system. …it is part of the cellular substances of blood along with, white blood cells and platelets. Adam

Great start Adam. You have also covered a variety of concepts from heart structures to the type of circulatory system. Hopefully the others can be inspired to come up with responses that cover other ideas or contain more detail. You can try and do this for any one of your sentences as well. It will also be able to count as another resposne. Also try and incorporate any ideas from today's lesson on medical technology and probelms with the circulatory system. VM

... it is a functioning cell ... it has the protein haemoglobin in it ... it is being taken to parts of the body that need the oxygen ... it is travelling in the circulatory system ... it is a red blood cell (erythrocyte) ... it may have no nucleus if it is a mature cell ... it is living one of its 100 day life span ... the heart is pumping it around the body ... you have been breathing in oxygen ... it is to make sure all the parts of the body are able to survive and function properly ... it is travelling in an artery, going in the direction away from the heart ... it may travel to the heart itself, upper body, lower body or head ... it will return to the lungs after it has deposited the oxygen ... it will return to the heart in veins ... it will exchange oxygen for carbon dioxide in the capillaries Josh

Well done Josh, all of these are accurate.VM

…it is a Red Blood Cell, and a part of our blood flow. …it is flowing away from the heart, functioning in a closed circulatory system, under high pressure. …it is traveling through the arteries from the heart to the lungs, and from the heart to the body. …it means that ATP is produced within the cell. …it means the oxygen has passed through the plasma membrane of the cell by diffusion, at the capillaries. …it means the body is functioning properly, as there is a flow of blood. …it is flowing through arteries with many other RBC cells at high pressure. …cellular respiration is occuring in the cell. …it can be found in a heterotroph, but not in an autotroph. …the oxygen is used as a reactant of cellular respiration (aerobic), occurring in the Mitochondria. …it is also transporting some CO2. …it means it has received the oxygen from the lungs, diffusing through at the capillary vessel. …is it also carrying Haemoglobin and iron. …it is transporting the oxygen through our blood stream and to our muscles. …it has an average life span of ~100 days. …it is disc-shaped, in order to increase the SA/V ratio, for diffusion to be more efficient. …the oxygen will actively transport out of the cell at the capillaries, in exchange for CO2. …it is not flowing through the veins (towards the heart), unless it is passing through the pulmonary vein, (the only vein carrying oxygenated blood), flowing from the lungs to the heart. …it could be travelling through an open or a closed circulatory system. …it could be travelling through a double-circuit or a single-circuit system in a closed circulation. Lia.

Most of these are fantastic Lia. I think you have gotten confused with carrying oxygen and the process of respiration. There are a couple of sentences ** that need to be fixed. VM are the sentences ok now? The asterix aren't there anymore, did I actually put them in? Hmmm...Anyway see above for my comments. I know we haven't covered tranpsort in plants but you will find that those three comments are not really accurate.VM voj, everytime i think of one someone has already taken it :( danii

That's OK, you can say the same thing as long as it is in your own words (which means that it will be written differently). For instance you might also use a different word or add a little more detail to something that is already written. Eg. if a sentence mentions it is flowing through arteries, you can simply include the name of one possible artery and then you are adding something new. I have now given you a hint to creating at least another 5 or 6 sentences. VM

... it will have travelled through the aorta at least once in its lifetime. ... it will have travelled to the brain as least once in its lifetime. ... it will exchange oxygen with waste products from other cells ... it does not contain a nucleus so as to provide more space to carry the oxygen. ... it will have been pumped out by the left ventricle into the rest of the body. ... it will not only be carrying oxygen but other nutrients and ions as well. ... it can be enclosed in a double circuit system in which it travels both to the body to the heart and then the lungs to the heart. ... it can be enclosed in a single circuit system which means it travels to the body and then the lungs and then the heart. ... it will contain the protien haemoglobin which will enable it to store oxygen. ... will be found in multicellular organisms. ... goes through the glomerulus so as to get rid of all it's impurities. ... it is called scentifically an erythrocyte. ... would travel through 2 types of vessels: the arteries and capilleries. ... it takes about 20 seconds for it to travel around the human body. ... will collect nutrients from the small intestine that have been absorbed through digestion. ... it will travel through the pulmonary vein, the only vein that carries oxygentated blood. ... it is likely to be suspended in a pale yellowish liquid called plasma ... it will have other types of blood cells flowing in the plasma with it. Mikayla W

Some really good statments and you have added more diversity to the growing number of responses. If a cell is transporting oxygen will it travel through a vein? You need to clarify this statment a bit more as it can be misleading. Also, perhaps rewording of "it will have" for some of them as in reality it cannot go to every part of the body in one circuit. Over time a partciular red blood cell may go to every part of the body, given the quick circuit time and their life span. Ooops I may have just written a response here. VM