Which macromolecule group includes sugars like glucose?
Carbohydrates
Which macromolecule does your body commonly use for readily available energy?
Carbohydrates
Fats and oils belong to which macromolecule group?
lipids
In a fatty acid, what does C=C represent?
A carbon-carbon double bond
What is the scientific name for ONE simple sugar unit?
Monosaccharide
Which macromolecule helps insulate your body and store energy for a long time?
Lipids
A phospholipid has a head and two tails. Which part is attracted to water?
The head (polar)
A fatty acid with at least one C=C double bond is SATURATED or UNSATURATED?
Unsaturated
What do we call TWO simple sugar molecules joined together?
Disaccharide
Your body stores extra sugar as glycogen. What is the purpose of storing glycogen?
To provide energy for later
Are the fatty acid tails of a phospholipid POLAR or NONPOLAR?
Nonpolar
Each circle represents one simple sugar. Which drawing shows a disaccharide?
A. ○
B. ○—○
C. ○—○—○
What simple sugar do cells commonly use for energy?
Glucose
Name the TWO places where your body stores most of its glycogen.
Liver and muscles
How many fatty acids are attached to glycerol in a triglyceride?
three
Which fatty acid is SATURATED?
A. C—C—C—C
B. C—C=C—C
What is the chemical formula for glucose?
C₆H₁₂O₆
Name the polysachharides:
___________ stores energy in animals
___________ stores energy in plants
___________ helps make up plants structure
Glycogen, starch, cellulose
What is the name of a lipid made of ONE glycerol and THREE fatty acids?
triglyceride
Glucose and fructose have the same chemical formula but different shapes. Why might they behave differently in the body?
Their different shapes can affect their functions. Shape determines function!