2.2 Water/Some stuff about carbs Flashcards
Water structure
2 hydrogen atoms covalently bonder to an oxygen atom
Cohesion
Form hydrogen bond with other water molecules
LIKE MOLECULES STICK TOGETHER
Adhesion
Water forms polar associations with charged molecules
UNLIKE MOLECULES STICK TOGETHER
Adhesion examples
Water moving up stem of a plant
Thermal properties
Water can absorb large amounts of heat before changing state
Hydrogen bonds must be broken first
Thermal properties make water…
a very effective collant
Examples of monosaccharides
Glucose and Ribose
Polysaccharides
Covalently joined monosaccharides
Types of polysaccharides
Celluluse
Starch
Glycogen
What is Cellulose
Component of cell wall
Linear molecule made of B- glucose
Starch
Energy store in plants
Composed of A-glucose
Examples of starch
Amylose and Amylopectin
Amylose
Linear, helical
Amylopectin
Branched
What is Glycogen
Energy storage in animals
Branched molecule of A-glucose
Carbs as an energy storage
Short term
More effective in osmolality
Easier to digest
Small ATP yield
Soluble
Disaccharides
Lactose
Maltose
Sucrose
Lactose
Sugar found in milk of mammals for infants
Glycogen
Used by animals for long term energy better meals in liver
Fructose
In honey and onions. Very sweet and good for energy
Sucrose
Used as a transportable energy form (sugar cane)
Cellulose
Used by plants as a strengthening component of cell wall