“In this lesson, we will review cellular respiration and explore a distinct, important part of its process: glycolysis. We will also cover the role of enzymes, ATP, and oxygen in glycolysis. What is Cellular Respiration? Imagine you're visiting a beach town and plan on walking the boardwalk, playing arcade games, eating funnel cake and ice cream and riding the ferris wheel. It's a cash-only boardwalk and you need change for the $100 bill you brought with you on vacation. The cash register, bank or bill vending machine you change the $100 bill at is like cellular respiration. Sound crazy? Keep following the story.
Let's say you get change from the local bank on the boardwalk. The bank gives you two $20 bills, four $10 bills, two $5 bills and ten $1 bills. The money you get back from the bank is energy (we will define what that energy is shortly). Now that you have the change (energy) you need to do all the fun things you want on the boardwalk, you meet back up with your family and the rest is history.
Back to Science Cellular respiration is the process by which your body converts biochemical energy from nutrients in the food you consume into energy that's usable by the body. It's the broad term that describes the set of metabolic reactions and processes that occur in the body that allow us to utilize food as an energy source.
Cellular respiration was the bank in our example because it took one large bill and broke it down into smaller bills, which were used for different activities. Cellular respiration oxidizes food into energy in the form of ATP, adenosine triphosphate. ATP in our example was the change given to us by the bank. ATP is used as energy at the cellular level in our bodies.
NADH is also a form of cellular energy, and while it's not as important in our lesson as ATP is, it is still a byproduct of cellular respiration. NADH stands for nicotinamide adenine dinucleotide, but you can just remember it as NADH for now.
Glycolysis Glycolysis is one of the main processes involved in cellular respiration. Glycolysis is the pathway that converts sugar into energy, or glucose (C6H12O6) into pyruvate (CH3COCOO), generating ATP during the conversion.
An important term to know is catabolism. Catabolism is the breaking down of larger molecules into smaller ones (conversely, anabolism is the building of larger molecules from smaller ones). Glycolysis is catabolic; it breaks down glucose, a 6 carbon sugar into pyruvate, a 3 carbon sugar. The truth is in the name: glyco for glucose, and lysis, Greek for 'to unbind'. Glycolysis literally means 'breaking down glucose'.
Glycolysis occurs in the cytosol of the cell: the cytosol is the fluid component of the cytoplasm, the area inside a cell's membrane which contains the organelles. Glycolysis does not need oxygen to occur; it is completely independent of molecular oxygen and can proceed without it. However the energy byproducts, ATP and NADH, do require oxygen to be utilized.
Glycolysis is unique because it is completely anaerobic - meaning it doesn't require oxygen and will proceed with or without it. Unlike the next steps in cellular respiration, which absolutely require oxygen to occur.
Let's review. Glycolysis breaks down glucose into pyruvate, and the byproducts of this reaction include ATP and NADH, which are used as energy sources by our bodies. This reaction is oxygen-independent and occurs in the cytosol of our cells.
Steps There are a series of ten reactions that occur in a single 'round' of glycolysis (i.e., one molecule of glucose), and three unique stages.
Each reaction is catalyzed by a specific enzyme. An enzyme is a protein that speeds up a chemical reaction and essentially allows it to occur. In the image, the specific enzymes are noted in blue.” I hope this helps you for what your looking for.
Glycolysis converts the 6-carbon glucose into two 3-carbon pyruvate molecules. This process occurs in the cytoplasm of the cell, and it occurs in the presence or absence of oxygen. During glycolysis a small amount of NADH is made as are four ATP
These are parts of the neuron which is considered as the basic unit of nervous system. The cell responsible for receiving sensory input from the external environment. The stimulus will be transported in an electrical signal via neuronal parts. Axon transmit signal to the other neuron. Dendrites are the receiving part of the neuron. Synapse is the space between each neuron where elctrical impulse is converted into a chemical signal via neurotransmitters.
Well the whole point of the cell cycle is to make more cells so it could be C, but it also wants the daughter cell to have the same AMOUNT of DNA, not the exact type (in meiosis) so B may be right, but most likely it is C
Virus can reproduce only within a host cell, this cycle of infection begins with the <em>attachment</em>, where the virus attaches to a specific receptor site on the host cell, after this comes the<em> entry,</em> in the case of enveloped virus, the envelope can fuse directly with the cell membrane to enter the cell, they can also enter through endocytosis. After entering the cell the virus initiates a <em>replication and assembly </em>mechanism depending on its genome, finally, the last stage of viral replication is the <em>release or egress </em>of the new virions produced in the host organism, some viruses can be released when the host cell dies, but some can leave infected cells by budding through the membrane without directly killing the cell.
I hope you find this information useful and interesting! Good luck!
