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Explore the difference between organic and inorganic molecules, focusing on macromolecules such as carbohydrates, lipids, proteins, and nucleic acids. Learn about their functions, structures, and importance in living organisms.
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Organic vs. Inorganic • Organic Molecules: Contains Carbon AND associated with life. Inorganic Molecules: Not associated with life… may, or may not contain carbon
Carbon is cool - It can make up to 4 covalent bonds and fold in all kinds of ways!!
CHNOPS… the main elements that make up your body!!!!(Carbon; Hydrogen; Nitrogen; Oxygen; Phosphorus; Sulfur)
What are Macromolecules? • Nutrients provide the raw materials required for growth, repair and energy for living things. We obtain these nutrients as part of our diet. Some nutrients are required in large amounts to support cellular health, including carbohydrates, lipids, and proteins.
4 Types of Macromolecules • Carbohydrates: Sugars + Starches • Lipids: Fats and Oils • Protein: Muscle Tissue • Nucleic Acids: Microscopic Genetic Material
Macromolecules • Macro means: • Large • Molecule: • Compound formed From 2 or more atom. Many One
Fatty acid amino acid amino acid amino acid amino acid amino acid amino acid – – – – – – Glycerol Building important polymers Carbohydrates = built from sugars sugar – sugar – sugar – sugar – sugar – sugar Lipids = built from fatty acid & glycerol Proteins = built from amino acids Nucleic acids (DNA) = built from nucleotides nucleotide – nucleotide – nucleotide – nucleotide
Identify each example according to type of macromolecule. . .
Digesting Macromolecules gives us energy ATP ATP ATP ATP ATP ATP starch glucose ATP
Stop & Read through questions in Carbohydrates • Work on your own • Pg 34–35 AND 44-48
Carbohydrates are built from sugars sugar – sugar – sugar – sugar – sugar – sugar
Function of Carbohydrates • quick energy • energy storage • Structure starch
Glucose Monomer Starch Glycogen Cellulose
BIG carbohydrates chitin • structure in arthropods & fungi • exoskeleton
Helpful bacteria • How can cows digest cellulose so well? • BACTERIA live in their stomachs & help digest cellulose-rich (grass) meals Eeeew…Chewingcud?
Different Diets of Herbivores Cow can digest cellulose well; no need to eat other sugars Gorilla can’t digest cellulose well; must add another sugar source, like fruit to diet
Carbohydrates: Monosaccharides • The monomer of carbohydrates is a single sugar with the chemical formula of C6H12O6 • These simple sugars are called Monosaccharides • All monosaccharides have the same chemical formula, but different shapes. • Examples: • Glucose • Fructose • Galactose
Carbohydrates: Disaccharides • Disaccharide = Double sugar. • They’re made by joining 2 monosaccharides
Carbohydrates: Polysaccharides • Polysaccharide = Many sugars • This is a long chain of monosaccharides • Examples: • Starch: Grain Foods • Cellulose: Plant fiber
Nucleic acids: Information molecules
proteins DNA Nucleic Acids • Function: • genetic material • stores information • transfers information
sugar N base phosphate Nucleic acids • Monomer (building block) = nucleotides Nitrogen basesI’m the A,T,C,G or Upart!
sugar sugar sugar sugar N base N base N base N base phosphate phosphate phosphate phosphate Nucleotide chains • Nucleic acids • nucleotides chained into a polymer strong bonds RNA
Nucleic Acids Examples • DNA • RNA RNA
That’s One Big Fatty Acid! Concentrated energy molecules Lipids
Lipids • Examples • fats • oils • waxes • hormones • sex hormones • testosterone (male) • estrogen (female)
Glycerol HEAD Fatty Acid TAIL
Another way to Illustrate Lipids Head Tail
Lipids • Function: • energy storage • very concentrated • twice the energy as carbohydrates! • cell membrane • cushions organs • insulates body • think whale blubber!
Other Functions of Lipids in your Body • Sex Hormones (Look WAY different than the other lipids… they are in rings). • Signals from one body system to another.
Saturated vs. UnsaturatedAnimal (solid) vs. Plant (liquid) saturated unsaturated