Presentation on theme: "Biology I Carbohydrates Biology I Carbohydrates: OH H H HO CH 2 OH H H H OH O Energy molecules."— Presentation transcript:
Biology I Carbohydrates
Biology I Carbohydrates: OH H H HO CH 2 OH H H H OH O Energy molecules
Biology I Carbohydrates Building block molecules = sugar sugar - sugar - sugar - sugar - sugar sugars
Biology I sucrose Carbohydrates Function: quick energy energy storage structure cell wall in plants Examples sugars starches cellulose (cell wall) glucose C 6 H 12 O 6 starch
Biology I Sugars = building blocks Names for sugars usually end in glucose fructose sucrose maltose OH H H HO CH 2 OH H H H OH O glucose C 6 H 12 O 6 sucrose fructose maltose – choc malt yum -ose
Biology I Building carbohydrates Synthesis | glucose | glucose 1 sugar = monosaccharide 2 sugars = disaccharide | maltose mono = one saccharide = sugar di = two
Biology I Building carbohydrates Synthesis | fructose | glucose 1 sugar = monosaccharide | sucrose (table sugar) 2 sugars = disaccharide How sweet it is!
Biology I BIG carbohydrates Polysaccharides large carbohydrates starch energy storage in plants potatoes glycogen energy storage in animals in liver & muscles cellulose structure in plants cell walls chitin structure in arthropods & fungi exoskeleton poly = many
Biology I Building BIG carbohydrates glucose + glucose + glucose… = starch (plant) glycogen (animal) energy storage polysaccharide
Biology I Digesting starch vs. cellulose starch easy to digest cellulose hard to digest enzyme
Biology I Cellulose Cell walls in plants herbivores can digest cellulose well most carnivores cannot digest cellulose that’s why they eat meat to get their energy & nutrients cellulose = roughage stays undigested keeps material moving in your intestines
Biology I 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
Biology I Helpful bacteria How can cows digest cellulose so well? BACTERIA live in their stomachs & help digest cellulose-rich (grass) meals Eeeew… Chewing cud?
Biology I Let’s build some Carbohydrates! EAT X
Biology I Activities building starch by bonding together paper glucose molecules eat carrots, celery, cookies