Cells need energy to perform processes in order to sustain life. In plants, energy from the sun is needed for photosynthesis, a process which allows the plant to create glucose for food. Animals then get their energy from plants and other animals and convert this energy into ATP energy for processes like cellular respiration and protein synthesis. All these processes require energy and work together to keep the organism alive.
Chief among the necessary "foods" that a cell needs are carbohydrates and proteins. Carbohydrates serve as an immediate energy source for cells. These starches and simple sugars like glucose are carried to cells throughout the body of an organism. The cells absorb carbohydrates and then break them apart. As sugar molecules break apart, the atoms release the small amount of energy that was bonding them together. The escaping electrons produce chemical energy. The cell uses this energy to power its inner workings, including movements of its organelles and manufacturing necessary compounds. Nearly all organisms require simple sugars cellular energy, especially plants and animals.
Proteins, on the other hand, don't so much provide a source of chemical energy as allow cells to create more cells. Cells are made from specific kinds of proteins, and use extra proteins both to repair themselves and to build new cells. When muscles grow and cells divide, they use proteins to make the new tissue. Like carbohydrates, the cells need proteins to survive and would die without them.
The third type of food that cells consume is actually an alternate form of carbohydrates stored in fat. Fats are compounds that hold carbohydrates, which can be extracted for later use. Certain cells in the body store these fats and convert them to carbohydrates, which can then be converted to energy as the need arises. This allows organisms to supply their cells with the necessary energy even if food sources aren't present.
cells need energy because without energy nothing will work.Also note that all the energy that was released with the big bang that energy will be used through everything in this universe until it ends.
Cells need to do lot of processes like photosynthesis, protein synthesis, DNA replication etc. So to do these kind of processes it needs energy.
So they can survive, And reproduce
All cells "capture" energy, and are able to convert that energy into food. Plant Cells (Prokaryotes) capture the energy emitted from the sun and convert that into energy so they can survive (Photosynthesis).
Food serves as a source of raw materials from which the cells of the body can synthesize new molecules, provides living things with the chemical building blocks they need to grow and reproduce, and as a source of energy. Oxygen is used to break down glucose in the process of cellular respiration. Food and oxygen is how cells get their energy. When the nutrients combine with oxygen, energy is released. The process is similar to burning or how a car engine gets its energy. There is a chemical reaction which releases energy.
When living cells break down food molecules energy is released and used to form ATP.
Cells convert the potential energy found in food molecules into ATP. This is done through the process of cellular respiration.
Cells need energy/food to survive
mitochondrion
mitochondria clown
no, they get the energy they need from the mitochondria.
Plants need energy from the sun for food, they do this through photosynthesis which is the cells of the leaves (palisade cells, and inside those, chloroplasts), gathering the suns energy and changing it into glucose. the plant can then use this glucose for food. :)
food is used up by all the cells in the body as all the cells need energy to perform their functions
So they can survive, And reproduce
Sperm cells need a tail to get food or energy while the egg isnt alive yet to need emergy......?
Water, Oxygen and organic food for energy
Yes. Because all cells need to release energy when food it broken down.
Cells require amino acids, vitamins, minerals, glucose, and fatty acids. Cells need glucose for energy, amino acids to make proteins, fatty acids to make the cell membrane and hormones, etc. Basically, the cells need these items to maintain itself in energy, regulation, and structure; just like how you need food to maintain your energy, regulate your body's needs, and reinforce it's structure.
Plant cells store energy from the sun. They do this because they need the sunlight to make food and because they cannot create energy on their own.