CELLULAR RESPIRATION IN HUMAN CELLSEvery cell in the human body is adjacent to a capillary. Glucose and oxygen carried by the blood can leave the bloodstream and enter the tissue cells. In most cases, the cells have enough supply of oxygen to carry out aerobic cellular respiration. But in times of short oxygen supply, such as during suffocation and strenuous exercises, the cells have to resort to anaerobic respiration.Read this article and summarize each paragraph. Glucose(anaerobic2 Lactic Acid + 2 ATPcellular respiration)(P4) When oxygen level is high, cellular respiration willbegin with the first step in the cytoplasm and thenfinish the rest of the steps in the mitochondrion.Mitochondrion is an organelle inside your cells wherethe oxygen we breathe in accumulates. Cellularrespiration with oxygen is called aerobic respirationand it generates more ATP. Water and carbon dioxideare created in aerobic cellular respiration. You exhalethe carbon dioxide. The water can be released fromyour body in the form of sweat, water vapor in yourbreath, or urine.Glucose +6 02 6 H₂O + 6 CO2 + 36 ATP(aerobic cellular respiration)(P5) Humans and other animals use ATP to energizetheir muscles so that they can move. Think of a timewhen your body required more energy. Hopefully,growth or exercise came to mind. When you exercise,your muscles need more energy. Your breathingincreases so that you can take in more oxygen, increaserespiration and make more ATP. This process is alsoresponsible for maintaining your body temperature.Your body warms up because your cells are using theenergy (ATP) released from cellular respiration to move,which generates heat. This is why, in times of increasedcellular respiration (such as exercise) your bodytemperature increases as well. ←Cellular Respiration in HumanCellular Respiration inHumans(P1) Have you ever wondered how your body getsenergy from the food you eat? Food is your body's onlysource of energy. When you eat, the molecules of foodare too large and complex for your individual cells touse, so your body has to perform a few complexchemical reactions called digestion in order to breakdown your food. The starch in your food is brokendown into glucose.(P2) Your cells then use glucose in cellular respiration.Cellular respiration extracts the stored chemical energyfrom glucose and parcels it out into smaller chunks in asmall molecule called ATP. It is very much likeexchanging a one-million-dollar bill into many $10 billsfor easy use. ATP stands for Adenosine Triphosphate.ATP carries the chemical energy that is readily usablefor your cells. Every cell in your body performs cellularrespiration because every cell needs energy in the formof ATP.(P3) The first step of cellular respiration occurs in thecytoplasm of your cells and does not require oxygen.When oxygen level is low, cells only perform this stepof cellular respiration, called anaerobic (meaningwithout oxygen) respiration. Anaerobic cellularrespiration only makes 2 ATPs from one glucosemolecule. Anaerobic cellular respiration in humans isalso called lactic acid fermentation. Soreness in themuscles after an extraneous exercise is due to lacticacid accumulation in the muscle cells. Too much lacticacid accumulation in the nerve cells during suffocationcan cause death.

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Cellular respiration is the metabolic process by which cells convert nutrients, primarily glucose,…