Biological Molecules

Question 1

Carbohydrates

Answer 1

Substances that include sugars, starch & cellulose and they contain carbon, hydrogen & oxygen

Question 2

Sugars

Answer 2

Sugars are the simplest types of carbohydrates they are small molecules

Question 3

Glucose

Answer 3

A sugar that is used in respiration to release energy

Question 4

Glycogen

Answer 4

A carbohydrate that’s used as an energy store in animal cells

Question 5

Starch

Answer 5

A carbohydrate that’s used as an energy store in plant cells

Question 6

Iodine solution

Answer 6

A solution of iodine with potassium iodine, its orange-brown & turns blue-black when mixed with
Starch

Question 7

Benedict’s solution

Answer 7

A blue liquid that turns orange-red when heated with reducing sugar

Question 8

Reducing sugars

Answer 8

Sugars such as glucose

Question 9

Lipids

Answer 9

Substances containing carbon, hydrogen& oxygen (less oxygen than carbs)

Question 10

Fats

Answer 10

Lipids that are solid at room temperature

Question 11

Oils

Answer 11

Lipids that are liquid at room temperature

Question 12

Emulsion

Answer 12

A liquid containing 2 substances that do not fully mix, one of them forms tiny droplets dispersed throughout the other

Question 13

Protein

Answer 13

A substance whose molecules are made up of many amino acids linked together; each different protein was different sequence of amino acid

Question 14

Amino acid

Answer 14

Substances with molecules containing carbon, hydrogen, oxygen & nitrogen; there are 20 different amino acids found in organisms

Question 15

Biuret reagent

Answer 15

A blue solution that turns purple when mixed with amino acids or proteins