Experiment 5

Question 1

Starch rapidly settles at the bottom which can be collected by ____.

Answer 1

Decanting the supernatant

Question 2

Microscopically, starch form _____ in plants.

Answer 2

Granules

Question 3

Is starch soluble or insoluble in water?

Answer 3

Insoluble

Question 4

What will happen to the starch if it is insoluble

Answer 4

It RAPIDLY settles at the bottom

Question 5

Important polysaccharide found in plant

Answer 5

Starch

Question 6

This are formed when Monosaccharides units combine? ; forming ___ bond?

Answer 6

Disaccharide and Polysaccharide ; glycosidic

Question 7

For every glycosidic bond formed, there is a corresponding loss of ___

Answer 7

one water molecule

Question 8

A reverse reaction also exist called ____

Answer 8

Hydrolysis

Question 9

___ It is the breakdown of large molecule into smaller fragments when reacted to ___

Answer 9

Hydrolysis ; water

Question 10

Hydrolysis is carried out in the presence of ______

Answer 10

Acid and Enzyme

Question 11

What CANNOT be hydrolyzed in NORMAL conditions

Answer 11

Monosaccharides

Question 12

What CAN be hydrolyzed in NORMAL conditions

Answer 12

Disaccharides and Polysaccharides

Question 13

___ It is the sweetening agent ; known as ____

Answer 13

Sucrose ; table sugar

Question 14

Sucrose is a __saccharide composed of _____ and ____ units

Answer 14

disaccharide ; a-D glucose ; B-D fructose

Question 15

Sucrose is the ONLT COMMON DISACCHARIDE that is ____

Answer 15

non-reducing

Question 16

Sucrose is non-reducing because both the reducing ends (anomeric carbons) of a-D glucose and B-D fructose are involved in ____

Answer 16

glycosidic bond

Question 17

Hydrolysis of sucrose is also known as ___

Answer 17

specific sucrose test

Question 18

___ is a polysaccharide composed of ____ units.

Answer 18

Starch ; a-D Glucose

Question 19

Starch serves as ____ in plants

Answer 19

storage of glucose

Question 20

DIETARY CARBOHYDRATES that humans eat are usually in the form of ____

Answer 20

starch

Question 21

Like all polysaccharides, starch is _____ (reducing/not)

Answer 21

non-reducing

Question 22

When starch is hydrolyzed in ___ condition, ____ are produced

Answer 22

acidic ; smaller and smaller fragments

Question 23

The progress of hydrolysis is monitored by ___

Answer 23

Iodine Test

Question 23

___ It is the decomposition of carbohydrates brought by the action of ____ such as ___

Answer 23

Fermentation ; microorganisms ; yeast

Question 24

provides enzymes which makes the process possible

Answer 24

Yeast

Question 24

Yeast gets its ____ energy from ___ of carbohydrates.

Answer 24

metabolic ; fermentation

Question 25

One of the products in fermentation is ____

Answer 25

gas

Question 26

Formation of bubbles from the mixture indicates that _____ is taking place

Answer 26

fermentation

Question 27

Many, but not all, _____ undergo fermentation using ___

Answer 27

carbohydrates ; yeast

Question 28

Perfect the exam!

Answer 28

Noted.