Biomolecules

How to Remember Biomolecules


Carbohydrates:

  • Monosaccharides: Simple sugars, e.g. Glucose
  • Disaccharides: Two monosaccharides joined together, e.g. Sucrose
  • Polysaccharides: Polymers of monosaccharides, e.g. Starch
  • Glucose: Most abundant monosaccharide, main energy source for cells
  • Fructose: Sweetest monosaccharide, found in fruits and honey
  • Sucrose: Common table sugar, composed of glucose and fructose
  • Cellulose: Structural polysaccharide found in plant cell walls
  • Starch: Storage polysaccharide found in plants, e.g. Potatoes and grains

Proteins:

  • Amino Acids: Building blocks of proteins, 20 different types
  • Peptide bonds: Covalent bonds that link amino acids together
  • Primary Structure: Sequence of amino acids in a polypeptide chain
  • Secondary Structure: Regular folding of polypeptide chain, e.g. Alpha- helix, beta-sheet
  • Tertiary Structure: Three-dimensional folding of polypeptide chain
  • Quaternary Structure: Organization of multiple polypeptide chains into a functional complex
  • Enzymes: Protein catalysts that accelerate chemical reactions
  • Denaturation: Loss of protein’s native structure due to changes in pH, temperature, etc.

Lipids:

  • Fats and Oils: Composed of fatty acids and glycerol, solid at room temperature
  • Waxes: Long-chain fatty acids esterified with alcohols, waterproof barrier
  • Phospholipids: Lipids with a phosphate-containing head group, major component of cell membranes
  • Steroids: Lipids with a four-ring structure, e.g. Cholesterol, hormones
  • Saturated Fatty Acids: No double bonds between carbon atoms, e.g. Palmitic acid
  • Unsaturated Fatty Acids: One or more double bonds between carbon atoms, e.g. Oleic acid

Nucleic Acids:

  • DNA: Double-stranded helix, genetic material of cells
  • RNA: Single-stranded, involved in protein synthesis and gene regulation
  • Nucleotides: Building blocks of nucleic acids, composed of a sugar, phosphate, and nitrogenous base
  • Base Pairing: Hydrogen bonding between complementary bases (A-T, C-G, U-A)
  • Double Helix: Two strands of DNA twisted around each other, resembling a twisted ladder
  • Transcription: Synthesis of RNA from a DNA template
  • Translation: Synthesis of proteins from an RNA template
  • Replication: Copying of DNA, occurs before cell division

Vitamins:

  • Fat-soluble Vitamins (A, D, E, K): Stored in body fat, can accumulate to toxic levels
  • Water-soluble Vitamins (C, B-complex): Not stored in the body, must be consumed regularly
  • Vitamin A: Important for vision, skin health, and immune function
  • Vitamin D: Helps absorb calcium and promotes bone growth
  • Vitamin E: Antioxidant, protects cells from damage
  • Vitamin K: Necessary for blood clotting and bone health
  • Vitamin C: Antioxidant, involved in immune function and collagen synthesis
  • B-complex Vitamins: Involved in various metabolic reactions, including energy production, nerve function, and red blood cell formation

Minerals:

  • Macronutrients (Calcium, Phosphorus, Potassium, Sodium, Chloride, Magnesium): Required in large amounts, make up electrolytes and structural components of bones and cells
  • Micronutrients (Iron, Zinc, Iodine, Fluoride): Required in smaller amounts, essential for various bodily functions
  • Calcium: Necessary for bone health and muscle function
  • Phosphorus: Involved in energy production, bone formation, and acid-base balance
  • Potassium: Regulates fluid balance, muscle contractions, and nerve transmission
  • Sodium: Maintains fluid balance and blood pressure
  • Chloride: Helps regulate fluid balance and acid-base balance
  • Magnesium: Involved in energy production, nerve function, and muscle contraction
  • Iron: Essential for red blood cell formation and oxygen transport
  • Zinc: Involved in immune function, wound healing, and taste perception
  • Iodine: Necessary for thyroid hormone production, regulates metabolism
  • Fluoride: Prevents tooth decay and strengthens bones


Table of Contents