Carb Chemistry
This simple hexose monosaccharide serves as the primary chemical fuel source for human cellular respiration.
What is glucose?
Dietary fats are primarily stored and transported in this chemical structure, consisting of a glycerol backbone bound to three fatty acid chains.
What is a triglyceride?
This is the specific name of the covalent bond formed via a dehydration reaction that links the carboxyl group of one amino acid to the amino group of another.
Answer: What is a peptide bond?
Unlike vitamins, which are organic, these micronutrients are inorganic elements originating from the earth that the body requires for structural and enzymatic functions.
What are minerals?
This universal chemical "energy currency" is synthesized by cellular respiration and features high-energy phosphate bonds that power biochemical work.
What is ATP (Adenosine Triphosphate)?
Unlike starch, this structural plant polysaccharide contains glycosidic bonds that human digestive enzymes cannot hydrolyze, passing through us as dietary fiber.
What is cellulose?
These specific fatty acids contain at least one carbon-to-carbon double bond, preventing them from packing tightly and leaving them liquid at room temperature.
What are unsaturated fatty acids (or monounstaturated/polyunsaturated)?
Out of the 20 standard amino acids, this is the total number that are classified as "essential" because the human body lacks the biochemical pathways to synthesize them from scratch.
Answer: What is 9?
Vitamins A, D, E, and K share this chemical property, meaning they require dietary lipids for absorption and can be stored long-term in adipose tissues.
What is fat-soluble?
This hormone, secreted by the beta cells of the pancreas, acts as a chemical key to signal cells to uptake glucose from the bloodstream.
What is insulin?
This is the highly branched polysaccharide compound used by humans to chemically store glucose short-term in liver and muscle tissues.
What is glycogen?
This dangerous type of fat is artificially created via the partial hydrogenation of vegetable oils, converting natural cis carbon bonds into a straighter, shelf-stable configuration.
What are trans fats?
This term describes a protein source (like eggs or quinoa) that contains all nine essential amino acids in concentrations proportional to human nutritional needs.
What is a complete protein?
This metallic element sits at the coordination center of the heme group in hemoglobin, allowing it to reversibly bind and transport molecular oxygen through the blood.
Answer: What is iron?
This biological term describes the metabolic breakdown of larger molecules into smaller ones to release energy, such as digesting a starch molecule into individual sugars.
What is catabolism?
This non-reducing disaccharide, commonly known as table sugar, consists of a glucose molecule covalently bonded to a fructose molecule via their anomeric carbons.
What is sucrose?
Named for the location of their final double bond from the terminal methyl carbon, these polyunsaturated fatty acids (like EPA and DHA) are vital for brain and heart chemistry.
What are omega-3 fatty acids?
This chemical process involves the disruption of a protein's secondary, tertiary, or quaternary structures via heat or acid, altering its shape and neutralizing its biological activity without breaking its backbone.
What is denaturation?
Ascorbic acid (Vitamin C) functions as this type of chemical agent, donating electrons to neutralize destructive free radicals and prevent oxidative stress.
What is an antioxidant?
During periods of prolonged fasting or extremely low carbohydrate intake, the liver shifts to this biochemical pathway, converting fatty acids into water-soluble molecules to fuel the brain.
What is ketogenesis (or producing ketone bodies)?
This numeric chemical scale ranks carbohydrates based on how rapidly they are converted to glucose and alter blood sugar levels compared to a standard reference.
What is the glycemic index?
Because they possess both a hydrophilic "water-loving" head and a hydrophobic "water-fearing" tail, these specialized lipids are master emulsifiers in cell membranes and food chemistry.
Answer: What are phospholipids?
This specific protein structural level dictates the linear sequence of amino acids, which is purely determined by an organism's genetic code.
What is the primary structure?
This water-soluble B-vitamin is chemically critical for DNA synthesis and methyl group donation, making its supplementation vital during early pregnancy to prevent neural tube defects.
What is folate (or folic acid)?
Taking place in the mitochondrial matrix, this key aerobic metabolic pathway processes Acetyl-CoA to reduce electron carriers.
What is the Krebs cycle?