Unit 1-Biology Molecules

Question 1

What is a monomer?

Answer 1

Smaller units which can create large molecules.

Question 2

What is a polymer?

Answer 2

Made from lots of monomers bonded together.

Question 3

Name 3 monosaccharides

Answer 3

Glucose, Fructose, Galactose

Question 4

Name 3 Disaccharides

Answer 4

Sucrose, Maltose, Lactose

Question 5

Name 3 Polysaccharides

Answer 5

Starch, Cellulose, Glycogen

Question 6

What is the formula of Glucose?

Answer 6

C6H1206

Question 7

What is a condensation reaction?

Answer 7

Joining two molecules together by removing water.

Question 8

How is maltose formed?

Answer 8

Condensation reaction between 2 alpha glucose molecules.

Question 9

How is lactose formed?

Answer 9

Condensation reaction between Glucose and Galactose.

Question 10

How is Sucrose formed?

Answer 10

Condensation reaction between Glucose and Fructose.

Question 11

How is glucose stored in animals?

Answer 11

Glycogen

Question 12

What is starch made of?

Answer 12

Amylose and Amylopectin.(polymers of alpha glucose)

Question 13

What is amylose?

Answer 13

-Long unbranched chain
-1-4 glycosidic bonds
-coils due to angles of glycosidic bond making it compact and useful for storage

Question 14

What is amylopectin?

Answer 14

-1-4 and 1-6 glycosidic bonds cause branching
-Side branches allow enzymes to get to glycosidic bonds easily so glucose can be released quickly

Question 15

What is an advantage of starch?

Answer 15

It is insoluble so it doesn’t affect water potential making it good for storage.