Place your order
Fill in the order form and provide all details of your assignment.
Proceed with the payment
Receive the final file
4. Light and Photosynthesis<
One of the major questions in the early research
GET HELP WITH YOUR ESSAY
If you need assistance with writing your essay, our professional Essay Writing Service is here to help!
4. Light and Photosynthesis<
One of the major questions in the early research of photosynthesis was the question of whether the oxygen that is produced originates from CO2 or H2O. Cornelius van Niel was an early proponent that H2O was the source of the oxygen. His work demonstrated that purple bacteria used hydrogen sulfide (H2S) in the presence of sunlight to produce carbon dioxide (CO2), water and sulfur, according to the equation:<
6CO2 + 12H2S + light ? C6H12O + 6 H2O +S2<
The similarity between H2S and H2O lead van Niel to conclude that water was the donor for oxygen in the normal photosynthesis reaction. However, it was not until 1941 that Ruben and Kamen were able to demonstrate this experimentally. Read the short article:<
Ruben, S., M. Randall, M. D. Kamen, and J. L. Hyde. 1941. Heavy oxygen (O18) as a tracer in the study of photosynthesis. Journal of the American Chemical Society 63(3): 877–879.<
In your own words, write a summary of the article that includes: 1) the question the authors were trying to answer; 2) the experimental design; 3) the results of the experiment; and 4) the conclusion the authors came to, based on their results. <
Your summary should be typed in Times New Roman 12-pt font and be one-and-a-half-spaced with 1” margins. It should be a minimum of 1 page and maximum of 2 pages. The header block does not count towards the page limit. You must upload a .docx, .pdf or .gdoc document. Contact your TA for permission, if you plan to use any other format (e.g., Apple Pages).<
You will need to use properly cited references. Wikipedia and other tertiary sources are not acceptable sources. You may use properly cited secondary sources (e.g., textbooks). While you are not required to use primary resources for this assignment, please note that higher points are awarded for their proper use.<
Quotations are not used in scientific writing; you must paraphrase and cite the sources you are paraphrasing from. Plagiarism is the use, intentionally or otherwise, of the work of others. You will lose points for using quotations and you will receive zero for plagiarizing. Be sure to cite your sources.<
hi thanks for writing my essay! up above are all the details. 🙂 please do one and a half spaced.
Top quality papers
We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university, or professional, and we will assign a writer who has a respective degree.
We have hired a team of professionals who provide expert academic help. Most of them are native speakers and PhD holders who are able to take care of any assignment you need help with.
If you feel that we missed something, send the order for a free revision. You will have 10 days to send the order for revision after you receive the final paper. You can either do it on your own after signing in to your personal account or by contacting our support team.
On Time Delivery
All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.
Our support agents are available 24/7 and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.
We use several checkers to make sure that all papers you receive are plagiarism-free. Our editors carefully go through all sources and in-text citations. We also promise full confidentiality in all our services.
Customer satisfaction has always been one of our basic concerns. If you don’t feel satisfied with our delivered work, you can request for a refund.
We assure you that your document will be thoroughly checked for plagiarism and grammatical errors as we use highly authentic and licit sources.
Our confidential essay writing service protects your privacy
We cherish your trust and do our best to protect you. Anything that you share with our private essay writing service is never misused as the access to your personal data is very limited. Your payment details and credit card number also fall under strict protection when you buy a custom essay online from us.
Meet Our Team
Wondering who’s working behind the scenes of our professional essay writing service? We have over 700 amazing people on our team including developers, QA engineers, designers, managers, HR specialists, marketers, essay writers, and many more. See who takes care of the orders you place.
There are 400+ essay writers from all over the world on our team who go through a 3-step hiring process. We call them super-writers because most of them have master’s degrees; therefore, they know the ins and outs of the discipline in which they specialize.
Our extra-fast and caring support assistants answer your questions 24/7 and resolve any of your troubles. Our team was even nominated for the 2019 Best Quality Management Team Award by the European Contact Centre & Customer Service.
Talk To Us
Need any help? Feel free to Send Us a Note