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Biology CH 4.1 – Chemical Energy and ATP
Biology CH 4.1 – Chemical Energy and ATP
Biology CH 4.1 – Chemical Energy and ATP
ATP and ADP [1]
Your metabolism is the collection of chemical reactions that occur in your cells to sustain life. Some of these reactions use stored energy to build things up, which we call anabolism, while other reactions break things down, releasing energy that can be stored for future use, and this is called catabolism
It took a lot of energy to organize those blocks into that complex structure, and breaking the blocks apart releases that energy and frees the blocks so that they can be built back up into new things. Here’s a brief video lecture that summarizes this concept.
1) Once the food atoms and groups of atoms (molecules) are broken down, they can be built back up into the specific kinds of things the organism needs, like bone, muscle, skin, hair, feathers, fur, bark, leaves, etc. 2) Breaking down the food molecules releases the energy that was holding them together, and that released energy is temporarily stored by the cell for the re-building process
The Cell, Respiration and Photosynthesis [2]
PhotosynthesisPhotosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars). Photosynthesis powers almost all trophic chains and food webs on the Earth.
dioxide from the air and water combine in the presence of sunlight to form. sugars; oxygen is released as a by-product of this reaction.
The electromagnetic energy of sunlight is converted to chemical energy in the chlorophyll-containing cells of photosynthetic organisms. In eukaryotic cells these reactions occur in the organelle known as the chloroplast
Adenosine triphosphate (ATP) | Definition, Structure, Function, & Facts [3]
Our editors will review what you’ve submitted and determine whether to revise the article.. – National Center for Biotechnology Information – Physiology, Adenosine Triphosphate
– University of Bristol – School of Chemistry – Adenosine Triphosphate. adenosine triphosphate (ATP), energy-carrying molecule found in the cells of all living things
Cells require chemical energy for three general types of tasks: to drive metabolic reactions that would not occur automatically; to transport needed substances across membranes; and to do mechanical work, such as moving muscles. ATP is not a storage molecule for chemical energy; that is the job of carbohydrates, such as glycogen, and fats
How Cells Obtain Energy from Food [4]
By agreement with the publisher, this book is accessible by the search feature, but cannot be browsed.. A service of the National Library of Medicine, National Institutes of Health.
This energy is derived from the chemical bond energy in food molecules, which thereby serve as fuel for cells.. Sugars are particularly important fuel molecules, and they are oxidized in small steps to carbon dioxide (CO2) and water (Figure 2-69)
We concentrate on glucose breakdown, since it dominates energy production in most animal cells. A very similar pathway also operates in plants, fungi, and many bacteria
Intro to photosynthesis (article) [5]
Reactions of photosynthesis, where they take place, and their ecological importance.. Have you hugged a tree lately? If not, you might want to give it some thought
In fact, most life on Earth is possible because the sun provides a continuous supply of energy to ecosystems.. All organisms, including humans, need energy to fuel the metabolic reactions of growth, development, and reproduction
Instead, it must first be converted into chemical energy through the process of photosynthesis.. Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars
The Cell, Respiration and Photosynthesis [6]
PhotosynthesisPhotosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars). Photosynthesis powers almost all trophic chains and food webs on the Earth.
dioxide from the air and water combine in the presence of sunlight to form. sugars; oxygen is released as a by-product of this reaction.
The electromagnetic energy of sunlight is converted to chemical energy in the chlorophyll-containing cells of photosynthetic organisms. In eukaryotic cells these reactions occur in the organelle known as the chloroplast
ATP: Definition, Structure & Function [7]
In the modern world, money is used to purchase things – it is used as currency. In the cellular world, ATP is used as a form of currency, to purchase energy! ATP or otherwise known by its full name adenosine triphosphate works hard at producing cellular energy
Explore our app and discover over 50 million learning materials for free.. Save the explanation now and read when you’ve got time to spare.Save
Nie wieder prokastinieren mit unseren Lernerinnerungen.Jetzt kostenlos anmelden. In the modern world, money is used to purchase things – it is used as currency
2.19: Glucose and ATP [8]
Where does this extra energy come from? Carbohydrate loading is a strategy used by endurance athletes to maximize the storage of energy, in the form of glycogen, in the muscles. Glycogen forms an energy reserve that can be quickly mobilized to meet a sudden need for glucose, which is then turned into ATP through the process ofcellular respiration.
But do you know that the atoms in that protein could easily have formed the color in a dragonfly’s eye, the heart of a water flea, and the whiplike tail of a Euglena before they hit your plate as sleek fish muscle? Food consists of organic (carbon-containing) molecules which store energy in the chemical bonds between their atoms. Organisms use the atoms of food molecules to build larger organic molecules including proteins, DNA, and fats (lipids) and use the energy in food to power life processes
Although some energy dissipates as heat at each energy transfer, much of it is stored in the newly made molecules. Chemical bonds in organic molecules are a reservoir of the energy used to make them
Cell Energy, Cell Functions [9]
This page has been archived and is no longer updated. Cells manage a wide range of functions in their tiny package — growing, moving, housekeeping, and so on — and most of those functions require energy
Cellular nutrients come in many forms, including sugars and fats. In order to provide a cell with energy, these molecules have to pass across the cell membrane, which functions as a barrier — but not an impassable one
In much the same way that doors and windows allow necessities to enter the house, various proteins that span the cell membrane permit specific molecules into the cell, although they may require some energy input to accomplish this task (Figure 2).. Complex organic food molecules such as sugars, fats, and proteins are rich sources of energy for cells because much of the energy used to form these molecules is literally stored within the chemical bonds that hold them together
4.9 Energy Needs of Living Things – Human Biology – Excerpts for BBIO 053 [10]
While running up to 160 kilometres (about 99 miles) a day, they will each consume and burn about 12 thousand calories — about 240 calories per pound per day, which is the equivalent of about 24 Big Macs! A human endurance athlete, in contrast, typically burns only about 100 calories per pound (0.45 kg) each day. Scientists are intrigued by the amazing metabolism of sled dogs, although they still haven’t determined how they use up so much energy
In fact, every cell of your body constantly needs energy just to carry out basic life processes. You probably know that you get energy from the food you eat, but where does food come from? How does it come to contain energy? And how do your cells get the energy from food?
You can often see energy at work in living things — a bird flies through the air, a firefly glows in the dark, a dog wags its tail. These are obvious ways that living things use energy, but living things constantly use energy in less obvious ways, as well.
Every Life Form on Earth Uses The Same Chemical For Energy. This Could Explain Why. [11]
All life as we know it uses the exact same energy-carrying molecule as a kind of ‘universal cellular fuel’. Now, ancient chemistry may explain how that all-important molecule ended up being ATP (adenosine triphosphate) a new study reports.
In both the above systems, a phosphate molecule is added to ADP (adenosine diphosphate) through a reaction called phosphorylation – resulting in ATP.. Reactions that release that same phosphate (in another process called hydrolysis) provide chemical energy that our cells use for countless processes, from brain signaling to movement and reproduction.
“Our results suggest… that the emergence of ATP as the universal energy currency of the cell was not the result of a ‘frozen accident’,” but arose from unique interactions of phosphorylation molecules, explains evolutionary biochemist Nick Lane from University College London (UCL).. The fact that ATP is used by all living things suggests it has been around since life’s very beginning and even before, during the prebiotic conditions that preceded all us animate matter.
4.9 Energy Needs of Living Things – Human Biology [12]
While running up to 160 kilometres (about 99 miles) a day, they will each consume and burn about 12 thousand calories — about 240 calories per pound per day, which is the equivalent of about 24 Big Macs! A human endurance athlete, in contrast, typically burns only about 100 calories per pound (0.45 kg) each day. Scientists are intrigued by the amazing metabolism of sled dogs, although they still haven’t determined how they use up so much energy
In fact, every cell of your body constantly needs energy just to carry out basic life processes. You probably know that you get energy from the food you eat, but where does food come from? How does it come to contain energy? And how do your cells get the energy from food?
You can often see energy at work in living things — a bird flies through the air, a firefly glows in the dark, a dog wags its tail. These are obvious ways that living things use energy, but living things constantly use energy in less obvious ways, as well.
ATP [13]
Without ATP, we couldn’t form a thought or move a muscle. It’s the main energy currency not only in our cells, but in all forms of life on the planet
A rechargeable AA battery is basically a package of energy that can be used to power any number of electronic devices—a remote control, a flashlight, a game controller.. Similarly, a molecule of ATP holds a little bit of chemical energy, and it can power something within the cell
ATP is often called the cell’s “energy currency.” Like money can buy any item in a store, this one molecule can power almost any process in a cell.. The cell doesn’t have to make ATP from scratch every time it needs some energy
4.10 Cellular Respiration – Human Biology [14]
This inviting camp fire can be used for both heat and light. Heat and light are two forms of that are released when a fuel like wood is burned
is the process by which living cells break down molecules and release . The process is similar to burning, although it doesn’t produce light or intense heat as a campfire does
It uses the energy released to form molecules of , the energy-carrying molecules that cells use to power biochemical processes. In this way, cellular respiration is an example of energy coupling: glucose is broken down in an exothermic reaction, and then the energy from this reaction powers the endothermic reaction of the formation of ATP
Cellular respiration [15]
This article needs additional citations for verification. Cellular respiration is the process by which biological fuels are oxidised in the presence of an inorganic electron acceptor, such as oxygen, to drive the bulk production of adenosine triphosphate (ATP), which contains energy
The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, producing large amounts of energy (ATP). Respiration is one of the key ways a cell releases chemical energy to fuel cellular activity
Although cellular respiration is technically a combustion reaction, it is an unusual one because of the slow, controlled release of energy from the series of reactions.. Nutrients that are commonly used by animal and plant cells in respiration include sugar, amino acids and fatty acids, and the most common oxidizing agent is molecular oxygen (O2)
The energy requirements of cells [16]
Respiration is the cellular process of releasing energy from food and storing it as ATP.. All cells require a supply of chemical energy for carrying out the activities that keep them alive.
ATP is made of one adenosine molecule and three phosphate groups, called Pi for short.. Each molecule of ATP stores a small quantity of chemical energy
Energy is required to regenerate molecules of ATP that have been broken down. ATP is regenerated by joining a molecule of ADP to a phosphate group.
5.1: Overview of Photosynthesis – Concepts of Biology – 1st Canadian Edition [17]
– Explain the relevance of photosynthesis to other living things. – Identify the reactants and products of photosynthesis
The energy that is harnessed from photosynthesis enters the ecosystems of our planet continuously and is transferred from one organism to another. Therefore, directly or indirectly, the process of photosynthesis provides most of the energy required by living things on earth.
In short, to eat and breathe, humans depend almost entirely on the organisms that carry out photosynthesis.. Click the following link to learn more about photosynthesis.
Sources
- https://www2.nau.edu/lrm22/lessons/atp/atp.html#:~:text=ATP%20(Adenosine%20tri%2Dphosphate),di%2Dphosphate)%20%2B%20phosphate.
- https://globalchange.umich.edu/globalchange1/current/lectures/kling/energyflow/PSN_primer.html#:~:text=Sunlight%20is%20converted%20to%20chemical%20energy%20in%20the%20form%20of,to%20power%20other%20metabolic%20reactions.
- https://www.britannica.com/science/adenosine-triphosphate
- https://www.ncbi.nlm.nih.gov/books/NBK26882/
- https://www.khanacademy.org/science/ap-biology/cellular-energetics/photosynthesis/a/intro-to-photosynthesis
- https://globalchange.umich.edu/globalchange1/current/lectures/kling/energyflow/PSN_primer.html
- https://www.hellovaia.com/explanations/biology/biological-molecules/atp/
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Introductory_Biology_(CK-12)/02%3A_Cell_Biology/2.19%3A_Glucose_and_ATP
- https://www.nature.com/scitable/topicpage/cell-energy-and-cell-functions-14024533/
- https://pressbooks.bccampus.ca/humanbiology053/chapter/4-9-energy-needs-of-living-things/
- https://www.sciencealert.com/every-life-form-on-earth-uses-the-same-chemical-for-energy-this-could-explain-why
- https://humanbiology.pressbooks.tru.ca/chapter/4-9-energy-needs-of-living-things/
- https://learn.genetics.utah.edu/content/metabolism/atp
- https://humanbiology.pressbooks.tru.ca/chapter/4-10-cellular-respiration/
- https://en.wikipedia.org/wiki/Cellular_respiration
- https://www.bbc.co.uk/bitesize/guides/zs3jrwx/revision/1
- https://opentextbc.ca/biology/chapter/5-1-overview-of-photosynthesis/
