Structure

Question 1

What’s the formula for a hexose sugar?

Answer 1

(CH2O)6

Question 2

How many carbons does glucose have?

Answer 2

6

Question 3

What are the 2 structural variations of glucose?

Answer 3

Alpha
Beta

Question 4

What makes glucose polar and soluble?

Answer 4

Due to the hydrogen bonds that form between the OH groups and water molecules

Question 5

Why is glucose the main energy source in plants?

Answer 5

Soluble —> easily transported
It’s chemical bonds contain lots of energy

Question 6

What’s the difference in structure between alpha and beta glucose?

Answer 6

The position of the hydroxyl group on the first carbon

Question 7

What’s a way to remember this structure?

Answer 7

A - alpha
B - below
B - beta
A - above

Question 8

How do you count the carbons on a structure?

Answer 8

Start with the carbon to the right of the oxygen atom and count clockwise

Question 9

What is an isomer?

Answer 9

Molecules that have the same molecular formulae but a different arrangement of atoms

Question 10

What is a glycosidic bond?

Answer 10

A covalent bond formed when 2 carbohydrate molecules and joined together by a condensation reaction