Exam 1 - Chapter 5 p1

Question 1

biomolecules

Answer 1

large molecules essential for life built from smaller organic molecules

Question 2

marcomolecules

Answer 2

large molecules composed of thousands of atoms

Question 3

monomers

Answer 3

subunits of large molecules

Question 4

polymers

Answer 4

consist of multiple monomers

Question 5

dehydration reactions

Answer 5

water loss, forms new bonds requiring energy

Question 6

hydrolysis reaction

Answer 6

breaking bonds releasing energy

Question 7

carbohydrates
_
/ \
_/

Answer 7

• 1c:2H:1o ratio
• Monosaccharides, one sugar ends in ‘ose’, glucose, fructose, galactose, deoxyribose
• Disaccharides, two sugars-sucrose, lactose, maltose
• polysaccharides, many monosaccharides, starch, glycogen, cellulose, chitin

Question 8

Lipids

Answer 8

-Don’t form polymers

Question 9

h h h h h h h
Fatty c-c-c-c-c-c-c-c

                  h h h h       h h h   Unsaturated c-c-c-c-c = c-c-c-c

Answer 9

-triglycerides/fats/ fatty acids=single bond, unsaturated-double bond

Question 10

phospholipids O

| \

Answer 10

-phospholipids, 2 fatty acids, primary component of cell membrane

Question 11

/\ 
steroids       |   |
                /\ /\  /
               |   |  |
                \/ \/

Answer 11

-steroids, 4 fused carbon rings, cholesterol