what gives water high surface tension?
the water molecule assimetry
which qualities of water allow it to moderate temperature?
- high specific heat capacity
- high latent heat of vaporization
why does ice float?
ice is less dense than liquid water
what solution is used to test monosaccharides?
BENEDIKTI—–> CuO is precipitated (red color)
the monomers of maltose :
glucose + glucose
the monomers of sucrose:
glucose + fructose
position of glycosidic linkage in maltose:
1-4
position of glycosidic linkage in sucrose:
1-2
position of glycosidic linkage in starch:
1-4
starch consists of:
amylose + amylopectin
amylose chains are:
long
unbranched
amylopectin chains are:
short
branched chains
branches in positions 1-6
glycogen is found in?
bacteres + animals
linkages in glycogen?
1-6 // similar to amylopectin
position of cellulose glycosidic linkages?
1-4
the structure of cellulose?
beta glucose
long
straight
unbranched molecules
where is chitin found?
- Fungi// cell wall
- Arthropods// exoskeleton
the difference between cellulose and chitin is that :
chitin contains a nitrogen attachment to its structure
saturated fats qualities
-solid at room temp.
-animal fats
-no double bonds
unsaturated fats qualities
-liquid at room temp.
-plant and fish fats
-healthy fats
-one or more double bonds
what is the reason that fats are hydrophobic?
the non-polar bonds C-H
what does a triglyceride consist of and how many water molecules are released during the formation of the 3 ester linkages?
-triglyceride= 1 glycerol+ 3 fatty acids
-3 water molecules (1 water molecule per linkage)
what does a phospholipid consist of?
phospholipid= the non-polar bonds C-H
why is the head of the phospholipid hydrophilic?
because it contains a phosphate group which is NEGATIVELY charged
