smaller yields larger
OR 2 + 1 3 (trisaccharide)
General Features
1. A synthesis is a chemical reaction in which S _ _ L _ (I*) M _ _ _ _ _ _ _ S are J _ I _ _ D through the help of an enzyme to form fewer but L _ R _ _ R (I*) molecules and often other products as well.
smaller yields
larger
OR 2 +
1
3 (trisaccharide)
Carbohydrates
2. Two categories of
carbohydrates in your meals are:
simple S _ _ _ _ S (I*) & S _ _ _ C _
_ S (I*)
3. Some common simple sugars (also known as M _ _ O S _ C _ _ A R _ _ E _ which means one sugar
and D _ _ A _ C _ _ R I _ _ S which means two sugars) are:
a. Monosaccharides: G _ U _ _ S _
Glucose Skeleton Glucose Molecular
Model
b. Disaccharides: S _ C _ O S _ (table sugar) (I*) & M A _ T _ S _ (M _ _ _ sugar)
Sucrose ____________ formula &
Maltose _________ Model
4. Some common starches (also known as P _ _ Y S A _ _ H _ _ I D _ S which means many sugars) are
a. C _ L _ U L O _ _ (I*) which makes up the thick cell walls of plant cells
5. Have you noticed something odd about the spelling of several of the technical words in #3,4 above?
They all tend to end in the same three letters _ _ _. This ending clues people in that the molecule is a type of C _ R _ O H _ _ R A _ E and usually a S _ _ _ _.
6.
The origin of the name c a r b o / h y d r a t e (I*) (I*) is …
(fill in formulas below each root word)
C _ _ _ _ _ / W _ _ _ _
+
7. The three elements contained in carbohydrates are: ______, ________, & _______
8. Glucose, which has the molecular formula C6H12O6 contains __ atoms of C(arbon),
___ atoms of H(ydrogen) and __ atoms of O(xygen).
9. Monosaccharides join together usually in a straight pattern in a S _ N _ _ E S I _ reaction to form
larger sugars and sometimes even S _ A _ _ H _ S.
a. If a simple sugar (monosaccharide) is symbolically represented by an
oval , (I*)
b. then a DISACCHARIDE (I*) would be drawn as
c. and a POLYSACCHARIDE (STARCH) (I*) might be drawn as
10. Demo: Teacher makes a molecular structural model of glucose using the kits provided.
11. What other type of molecule (I*) must be present in order for two glucose molecules to join
together in a dehydration synthesis? _________
12. When two glucose monosaccharies are joined together in a synthesis reaction, the larger product molecule
is known as a ___/ saccharide (named maltose) (The bottom of the two diagrams below!)
13 What other types of atoms are left over from the synthesis of maltose? (I*) __ & __ __
(Clue)
H & _ _
14 As the maltose was formed, what other molecule was made from these atoms? ________
15 Word Equation for the synthesis of a small disaccharide:
enzyme
_____________ + ___________ --------------> ________________ + _____
