MCAT practice questions
25 free MCAT questions across 10 topics, each with the answer and a worked explanation. No account needed.
Questions
How lower blood pH changes hemoglobin’s oxygen affinity
Proteins and amino acids
Answer and worked explanation
Use a Weber fraction to find the smallest noticeable change
Sensing the environment
Answer and worked explanation
What happens at one electrode of a concentration cell?
Electrochemistry and circuits
Answer and worked explanation
What insulin does in muscle after a long run
Bioenergetics and metabolism
Answer and worked explanation
Name the social process in a food-drive sign-up
Social processes and behavior
Answer and worked explanation
Predict urine changes when ADH secretion is low
Nervous and endocrine systems
Answer and worked explanation
Identify an inhibitor that lowers both Vmax and Km
Proteins and amino acids
Answer and worked explanation