What do the arrows in a food chain show?
The transfer of biomass
What eats what
How many organisms are at each trophic level
What molecules are the building blocks of proteins?
Amino acids
Fatty acids
Sugars
What molecules are the building blocks of carbohydrates?
Which of these foods is high in protein?
Potatoes
Meat
Butter
Which of these is small enough to be absorbed into the blood?
Glucose
Starch
Cellulose
What do plants use cellulose for?
Making glucose
Making cell membranes
Making cell walls
What process joins amino acids together?
Transpiration
Protein synthesis
Photosynthesis
What are the subunits of lipids?
Fatty acids and glycerol
Starch is an example of which type of food molecule?
Protein
Carbohydrate
How many fatty acid molecules make up a lipid?
One
Two
Three