The Basic Unit of Structure and Function in Living Organisms

Last week we introduced cells as the basic unit of structure and function in living organisms. But in order to function, a cell needs energy. Many living organisms—including humans—ingest food as a means to create energy. The organism’s digestive system breaks down the food’s biological macromolecules such as carbohydrates into sugars. When those sugar molecules are broken down, energy is produced. We measure this energy in units of adenosine triphosphate (ATP). ATP is used by cells as a source of energy.

Other organisms, such as plants, can produce energy without ingesting food. Plants produce energy from light through a process known as photosynthesis. As a human, your food comes from either plants or animals that eat plants. This means that the energy in your body depends, on some level, on plant photosynthesis. Without plant photosynthesis, we wouldn’t be able to get the energy we need from our food.

Don't use plagiarized sources. Get Your Custom Essay on
The Basic Unit of Structure and Function in Living Organisms
Just from $13/Page
Order Essay

This week, we will look at ways cells create energy, the ways they acquire what they need to create energy, and how they transfer energy throughout an organism’s body. The living cells of every organism constantly use energy. Cells import molecules, metabolize or otherwise modify them, then transport them around the cell, potentially even distributing products back out of the cell to the entire organism. Metabolism is the sum of all chemical reactions that occur in a living organism. A key feature of metabolism is that chemical reactions often make the materials needed for other chemical reactions. Metabolism both builds bigger molecules from smaller ones and dismantles molecules to release atoms and energy. Photosynthesis is one of the most important sets of chemical reactions in all of nature for more than just the energy it produces. In addition to being the pathway through which energy and carbon (in the form of glucose) enter the web of life, it also releases oxygen into the environment. Life as we know it would not exist without photosynthesis. This is quite an important role in nature! You will participate in a class discussion related to topics in biology. You will also complete a laboratory experiment on parts of the cell, including cell membranes. And you will demonstrate your knowledge of course concepts with a quiz. Next week we will study the life cycle of single cells and cell reproduction. Combined, these processes allow for existing cells to make new cells. The ability of living organisms to produce new cells is important for three of the major characteristics of life: growth, healing, and reproduction.

Week 3 Outcomes By the end of this week, you should be able to describe the scientific concepts relating to energy; explain the relationship between enzymes and energy in the context of metabolism; describe the role of metabolic pathways in living organisms; explain the processes and outcomes of cellular respiration and fermentation; explain the process of photosynthesis including the light dependent and light independent (Calvin cycle) reactions; compare/contrast cellular organelles; add specified amounts of stock solution from the lab kit to obtain specific solution concentrations; use dialysis bags to test osmosis for various concentrations; and apply concepts and/or argue a position related to a scientific topic.

Essaywriters4me

Calculate The Price Of Your Paper

Pages
{{total || ""}}

Why Choose Us

Top Quality and Well-Researched 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.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

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.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

Customer Support 24/7

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Freebies
Our FREE services
Every order comes with these awesome features.
Order Now
Money Back Guarantee
FREE Best essay writer across your subject
FREE Cover page and bibliography
FREE APA/MLA/Chicago formatting
FREE Free Revisions
FREE 24/7 customer support hotline and chat

Essays

Essay Writing Services

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.

Admissions

Admission and Business Papers

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.

Editing

Editing and Proofreading

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.

Coursework

Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.