Practise MYP Biology questions on 3.2 Word and Chemical Equations and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
Which feature distinguishes a chemical equation from a word equation?
In any balanced chemical equation, the __________ are the starting materials written on the left side of the arrow.
True or False: Standardized equations allow scientists globally to understand and replicate experiments without language barriers or descriptive ambiguity.
In the equation for lactic acid fermentation, what is the primary reactant being converted into lactic acid?
In biological pathways, why do equations typically represent the "net" chemical change rather than every individual step?
It uses symbols and formulas to show how atoms rearrange
It represents the reaction as a narrative description
It lists only the final products of a long metabolic pathway
It includes the names of specific enzymes involved
products
catalysts
reactants
enzymes
True
False
Glucose
Oxygen
Carbon dioxide
Galactose
Because individual steps are not controlled by enzymes
To simplify the complexity of dozens of intermediate compounds
Because intermediate steps do not involve atoms
To make the equations easier to read in low light
