Chemical Basis of life

Question 1

Organic compounds that make up the living body

Answer 1

Carbohydrates,
Proteins
Lipids
Nucleic Acids

Question 2

What are the three types of Carbohydrates?

Answer 2

Monosaccharides
Disaccharides
Polysaccharides

Question 3

What are the types of Monosaccharides

Answer 3

Glucose
Fructose
Galactose

Question 4

What are the types of Disaccharides

Answer 4

Sucrose
Lactose
Maltose

Question 5

What are the types of Polysaccharides

Answer 5

starch
cellulose
glycogen

Question 6

Locations of Glucose

Answer 6

Ripen fruits
Bee honey

Question 7

Features of Glucose

Answer 7

End product of hydrolysis of starch.
Produced during photosynthesis.
Energy is release during breakdown of glucose in cellular respiration

Question 8

Locations of Fructose

Answer 8

Ripen Fruits
Bee honey
Carrots

Question 9

Features of Fructose

Answer 9

Know as Fruit sugar
sweetest sugar
formed during ripening of fruits

Question 10

Locations of Galactose

Answer 10

Dairy Products

Question 11

Features of Galactose

Answer 11

No sweet taste
End product of hydrolysis of Lactose

Question 12

Locations of Sucrose

Answer 12

White and Brown Sugar
Sugar cane
Some fruits

Question 13

How is Sucrose formed

Answer 13

Glucose + fructose —-> Sucrose +
water

Question 14

Locations of Maltose

Answer 14

Germinating seeds

Question 15

How is Maltose formed

Answer 15

Glucose + Glucose —> Maltose +
water

Question 16

Lactose Locations

Answer 16

In dairy products

Question 17

How is Lactose formed

Answer 17

glucose + galactose —> Lactose +
water

Question 18

Cellulose locations

Answer 18

Cell wall of plant cells

Question 19

Starch Locations

Answer 19

Grains
Yams
Jack
Potatoes

Question 20

Starch Features

Answer 20

The carbo. that is stored in plants is starch

Question 21

Glycogen Features

Answer 21

The type of Carb. that is stored in animal body is Glycogen

Question 22

glycogen locations

Answer 22

In animal liver and muscles

Question 23

Significance of Carbohydrates

Answer 23

• As an energy source
• As storage compound
• As a constituent in nucleic acid

Question 24

What is the test to identify starch

Answer 24

• add a drop of iodine to the food sample

Question 25

what is the color change of sucrose test

Answer 25

Purplish blue color appears

Question 26

What is the test for Glucose

Answer 26

• solution is obtained to a test tube
• add a few drops of benedict solution to it
• immerse in a water bath and heat it

should immerse in a water bath and heat after adding benedicts solution

Question 27

color change for glucose

Answer 27

blue - green - green - yellow - orange - b. red precipitate

Question 28

what is the test for sucrose

Answer 28

• Add a few drops of H2SO4 to a sugar solution
• immerse in a water bath and heat it
• add a few drops of benedict solution

should add h2so4 before heating and add benedicts after heating

Question 29

What are the elements in proteins?

Constituents

Answer 29

Carbon, Hydrogen, Oxygen, Nitrogen

in carbs only C, H , and O are there

Question 30

What are the uses of proteins

Answer 30

• as an energy source
• to make structural components
  proteins make cell membrane. also the hair is made by keratin which is a protein
• As enzymes
  protiens act as enzymes and they are catalysts
• As antibodies
  The antibodies are made of protien (wbc)

Question 31

What is the test for Protiens named as

Answer 31

Biurette test

Question 32

How is biurette test done

Answer 32

• take a solution of dhal to a test tube
• add a solution of NaOH should be added
• then add a few drops of CuSo4

Question 33

What is the color change of biurette test

Answer 33

Purple color

Question 34

What are enzymes

Answer 34

the special protiens that are used to increase the rate of bio chemical reactions

Organic Catalysts