Experiment 5 Flashcards
Starch rapidly settles at the bottom which can be collected by ____.
Decanting the supernatant
Microscopically, starch form _____ in plants.
Granules
Is starch soluble or insoluble in water?
Insoluble
What will happen to the starch if it is insoluble
It RAPIDLY settles at the bottom
Important polysaccharide found in plant
Starch
This are formed when Monosaccharides units combine? ; forming ___ bond?
Disaccharide and Polysaccharide ; glycosidic
For every glycosidic bond formed, there is a corresponding loss of ___
one water molecule
A reverse reaction also exist called ____
Hydrolysis
___ It is the breakdown of large molecule into smaller fragments when reacted to ___
Hydrolysis ; water
Hydrolysis is carried out in the presence of ______
Acid and Enzyme
What CANNOT be hydrolyzed in NORMAL conditions
Monosaccharides
What CAN be hydrolyzed in NORMAL conditions
Disaccharides and Polysaccharides
___ It is the sweetening agent ; known as ____
Sucrose ; table sugar
Sucrose is a __saccharide composed of _____ and ____ units
disaccharide ; a-D glucose ; B-D fructose
Sucrose is the ONLT COMMON DISACCHARIDE that is ____
non-reducing
Sucrose is non-reducing because both the reducing ends (anomeric carbons) of a-D glucose and B-D fructose are involved in ____
glycosidic bond
Hydrolysis of sucrose is also known as ___
specific sucrose test
___ is a polysaccharide composed of ____ units.
Starch ; a-D Glucose
Starch serves as ____ in plants
storage of glucose
DIETARY CARBOHYDRATES that humans eat are usually in the form of ____
starch
Like all polysaccharides, starch is _____ (reducing/not)
non-reducing
When starch is hydrolyzed in ___ condition, ____ are produced
acidic ; smaller and smaller fragments
The progress of hydrolysis is monitored by ___
Iodine Test
___ It is the decomposition of carbohydrates brought by the action of ____ such as ___
Fermentation ; microorganisms ; yeast
provides enzymes which makes the process possible
Yeast
Yeast gets its ____ energy from ___ of carbohydrates.
metabolic ; fermentation
One of the products in fermentation is ____
gas
Formation of bubbles from the mixture indicates that _____ is taking place
fermentation
Many, but not all, _____ undergo fermentation using ___
carbohydrates ; yeast
Perfect the exam!
Noted.
