“Let’s the salmon sushi.” They called the

“Let’s go out tonight! I feel like eating sushi.” Kenzie exclaimed. Her boyfriend, Jack looked at her and agreed.
“Okay, sushi date it is.” They left around an hour later and went to a new sushi place that opened up. They were seated and handed a menu.
“I am going to get the California rolls with edamame. How about you Jack?”
“I am going to get the salmon sushi.” They called the waiter and placed their order. They talked about their day at school today and how they were doing in general. Their order came and they quickly started to eat. After consuming many pieces or rolls and sushi, they paid their bill and walked out of the restaurant. Jack dropped off Kenzie at home and went home.
The next morning, Jack was not feeling well and he went and got sick in the bathroom. His parents were not at home, so he quickly called his girlfriend, Kenzie, to drive him to the hospital. Kenzie rushed over and helped Jack into the passenger seat holding a paper bag, and quickly sped to the emergency room. They finally arrived and they immediately went to seek medical attention. Kenzie was crying out of concern for her boyfriend. She waited for an hour while doctors were running tests. The doctor came out to Kenzie in the waiting room.
“Hello, Ms. Forbes. We finished running tests on your boyfriend, Jack Michaels. It turns out that he that he is perfectly fine. Everything in his body is functioning the way it is supposed to. Would you like to see him right now?”
“Yes, thank you so much for your help. This is great news.” Kenzie exclaimed. She followed him into the room where Jack was resting, and she immediately ran to hug him. He hugged her back as the doctor stood in the room.
“Okay, Jack. What made you feel like you should have come to the hospital?”
“I thought I was sick, I woke up feeling ill and threw up. I thought I had food poisoning from the sushi I ate yesterday. I thought maybe it was bad sushi or salmonella.”
“Fortunately, you do not have salmonella. Based on reviewing your previous history and records, it seems that you may have hypochondria. You have visited us in the past believing that you were sick even though you were perfectly healthy and fine.”
Jack was stunned. “I was sure that I was sick, absolutely positive.”
“Well let me tell you about the path of the sushi you ate from when it first entered your body to when the food was used as ATP in your cells. I want to ensure you that everything went the way it was supposed to and you do not have salmonella. The macromolecules in the salmon sushi you ate were consisted of carbohydrates, protein, and lipids. Carbohydrates are from the rice and while the protein and lipids came from the salmon. First, the sushi was chewed up and mixed with your saliva. While you continued to chew, you swallowed the sushi and it traveled down your esophagus to your stomach. Once it reached the stomach, it was bathed in hydrochloric acid.” the doctor explained. “During digestion, the large molecules of sushi were broken down into smaller molecules by the enzymes in our stomach. The smaller and more complex molecules such as amino acids, sugars, and fatty acids were absorbed through the walls of the small intestine. They were sent into the bloodstream and circulated throughout the body to nourish and repair your cells.”
“What type of carb is rice?
“Rice is a complex carbohydrate because it is starch and it is a polysaccharide. The salmon is made of a good lipid, omega 3 fatty acids, and a high-quality protein consisting of all 9 essential amino acids. The body cannot make these 9 essential amino acids on its own, so these essential amino acids have to come from our diet. They include histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.”
“Oh, I see. How do these amino acids and omega 3 fatty acids help me and my body?”
“Well all these molecules, the proteins, amino acids, carbohydrates, and lipids are used to help nourish and repair your cells. The cell has special parts called organelles that aid in this process. The cell membrane, the endoplasmic reticulum, lysosome, and the Golgi body are some of the organelles which are included in this process. The cell membrane protects the interior of the cell by allowing certain substances into the cell while keeping other substances out. The rough endoplasmic reticulum contains ribosomes that produce proteins while smooth endoplasmic reticulum manufactures lipids. The Golgi body processes the proteins produced by the endoplasmic reticulum and ribosomes, modifying and storing them until it packages them in vesicles. Lysosomes contain the enzymes capable of breaking down cell macromolecules.”
“How are these molecules able to move throughout the cell?”
“Well, there are a couple types of transport of these molecules such as active transport and facilitated diffusion. In active transport, large molecules like amino acids and glucose need energy for their absorption. In facilitated diffusion, water-soluble vitamins, minerals, and the simple sugar fructose are absorbed. Nutrients become attached to specific molecules outside the absorptive cell surface. These carrier molecules take the nutrients across the cell membrane and release them once inside the cell.”
“How do my cells get the energy they need?” Jack asked.
“The cell goes through cellular respiration in order to make energy called ATP. The first step of cellular respiration is glycolysis which basically uses a glucose molecule to split into two pyruvates. When these two pyruvates are formed, four ATP are also created and 2 BADG electron carrier molecules. If the cell has access to oxygen, then the 2 pyruvates will become Acetyl CoA and go inside the mitochondria to perform the Krebs cycle or citric acid cycle for more ATP. The Krebs Cycle occurs in the matrix of the mitochondria. The Krebs Cycle uses the two pyruvic acids which are converted to acetyl CoA. CO2 and electron carrier molecules are produced. In total, 6CO2 are produced as well as 8 NADH and 2 FADH2 electron carrier molecules, and 2 ATP that the cell can use for energy. All the carbons became carbon dioxide, so all that’s left from the initial glucose are the hydrogen atoms and electrons in NADH and FADH2, which go to the electron transport chain for the most energy-rich part of cellular respiration. The ETC occurs in the inner membrane of the mitochondria, within the cristae. The ETC uses 10 NADH electron carrier molecules, 2 FADH2, plus the 6 oxygen atoms from the original glucose molecule, and 34 ADP and ATP that are waiting to be combined by the ATP Synthase. The electrons from the electron carrier molecules hop down the electron transport chain and the H+ ions from the electron carrier molecules to go across the inner membrane through active transport, then they charge back out through facilitated diffusion through the ATP synthase. Cellular respiration will keep occurring again and again unless the cell runs out of oxygen, in which place it will now perform fermentation to get the energy it needs to move enzymes.”
“Alright, thanks, Doctor. I think I understand how the food I eat maintains my cells.”
“I think you will be alright. I hope that our talk has eased your mind. Take care.” The doctor walks out of the room.
“Ok Jack, let’s go home. I’ll drive.” Kenzi said. They drove home in comfortable silence. Everything made sense to the both of them now. “I think that you should start seeing a therapist who specializes in hypochondria.”
“I will. Thank you for standing by me.”
“Of course, I don’t mind at all.” Kenzi smiled as she held her boyfriend’s hand.

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