helps you ACE the MCAT! Start studying now.

Sign up or Log in to Magoosh MCAT Prep.

AAMC FL 4 Explanations [MCAT Practice Test Explanations Reddit Mega Compilation!]

Hey MCAT students, stop driving yourself insane searching Reddit question-by-question for explanations to the AAMC full-length practice tests! We’ve put together a little something for you.

Below, you’ll find a complete list of questions from AAMC full-length test 4 (or AAMC FL 4 as it’s referred to on Reddit) and embedded links to available explanation threads from Reddit. Where we couldn’t find an explanation thread, we linked to a crowdsourced Google Sheet from Reddit students with explanations for AAMC questions.

If a question has inspired a lot of discussion on Reddit, we’ve noted that with a HOT QUESTION ALERT!๐Ÿšจ

Special note for AAMC FL 4: this is the newest test from AAMC and also one that claims to have better explanations, so there aren’t as many student- and tutor-explained questions for this one yet, so we’d love your help in solving more!

If a question doesn’t have an available explanation, and you think you can explain it, we’d love to hear from you in the comments and we can update this resource and give you credit if desired ๐Ÿ˜‰.

Disclaimer: most of these explanations were written by MCAT studiers like you. Our MCAT expert tutors are currently working on creating explanations for you as well – so stay tuned for those! In the meantime, if you spot any corrections or additions needed, please let us know in the comments!

Looking for explanations to the other AAMC full-length practice tests? You can find them here:

And don’t forget to check out Magoosh MCAT Prep for complete MCAT prep at a fraction of the price!

AAMC FL4 Chemical/Physical Explanations

Click the arrow to see all of the explanations in the C/P Section

FL4 C/P Q1

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q2

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q3

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q4

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q5

EXPLANATION 1:

Card

FL4 C/P Q6

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q7

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3:

Card

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 C/P Q8

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 C/P Q9

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 C/P Q10

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q11

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q12

EXPLANATION 1:

Card

FL4 C/P Q13

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 C/P Q14

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q15

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q16

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q17

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3:

Card

FL4 C/P Q18

EXPLANATION 1:

Card

FL4 C/P Q19

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q20

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q21

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q22

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q23

See Explanations for Most MCAT Questions Spreadsheet

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 C/P Q24

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3:

Card

FL4 C/P Q25

EXPLANATION 1:

Card

FL4 C/P Q26

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q27

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q28

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q29

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q30

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q31

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3:

Card

 
HOT QUESTION ALERT!๐ŸšจThis question above has a lot of discussion on Reddit. See here for more.
 

FL4 C/P Q32

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q33

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q34

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q35

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 C/P Q36

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q37

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q38

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q39

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q40

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q41

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 C/P Q42

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q43

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q44

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q45

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q46

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q47

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q48

EXPLANATION 1:

Card

FL4 C/P Q49

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q50

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q51

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q52

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q53

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q54

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q55

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q56

EXPLANATION 1:

Card

FL4 C/P Q57

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q58

See Explanations for Most MCAT Questions Spreadsheet

FL4 C/P Q59

See Explanations for Most MCAT Questions Spreadsheet

AAMC FL4 Critical Analysis and Reasoning Skills Explanations

Click the arrow to see all of the explanations in the C/P Section

FL4 CARS Q1

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q2

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q3

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q4

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q5

EXPLANATION 1:

Card

FL4 CARS Q6

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q7

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q8

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q9

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q10

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q11

See Explanations for Most MCAT Questions Spreadsheet

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 CARS Q12

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q13

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q14

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q15

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q16

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q17

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q18

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q19

EXPLANATION 1:

Card

FL4 CARS Q20

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q21

EXPLANATION 1:

Card

FL4 CARS Q22

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q23

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q24

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q25

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q26

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q27

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q28

EXPLANATION 1:

Card

FL4 CARS Q29

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q30

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q31

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q32

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q33

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q34

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q35

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q36

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q37

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q38

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q39

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q40

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q41

EXPLANATION 1:

Card

FL4 CARS Q42

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q43

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q44

Currently not available โ€“ do you have an explanation? Share in the comments!

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 CARS Q45

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q46

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q47

EXPLANATION 1:

Card

FL4 CARS Q48

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q49

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 CARS Q50

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q51

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q52

See Explanations for Most MCAT Questions Spreadsheet

FL4 CARS Q53

See Explanations for Most MCAT Questions Spreadsheet

AAMC FL4 Biological/Biochemical Explanations

Click the arrow to see all of the explanations in the C/P Section

FL4 B/B Q1

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3″

Card

FL4 B/B Q2

EXPLANATION 1:

Card

FL4 B/B Q3

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q4

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q5

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q6

EXPLANATION 1:

Card

FL4 B/B Q7

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q8

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q9

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q10

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q11

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q12

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q13

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q14

EXPLANATION 1:

Card

FL4 B/B Q15

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q16

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q17

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q18

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3″

Card

 
HOT QUESTION ALERT!๐ŸšจThis question above has a lot of discussion on Reddit. See here for more.
 

FL4 B/B Q19

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q20

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q21

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q22

EXPLANATION 1:

Card

FL4 B/B Q23

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q24

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q25

EXPLANATION 1:

Card

FL4 B/B Q26

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q27

EXPLANATION 1:

Card

FL4 B/B Q28

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q29

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3″

Card

 
HOT QUESTION ALERT!๐ŸšจThis question above has a lot of discussion on Reddit. See here for more.
 

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 B/B Q30

EXPLANATION 1:

Card

FL4 B/B Q31

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 B/B Q32

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q33

EXPLANATION 1:

Card

FL4 B/B Q34

EXPLANATION 1:

Card

FL4 B/B Q35

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 B/B Q36

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q37

EXPLANATION 1:

Card

FL4 B/B Q38

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q39

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q40

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3″

Card

FL4 B/B Q41

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3″

Card

 
HOT QUESTION ALERT!๐ŸšจThis question above has a lot of discussion on Reddit. See here for more.
 

FL4 B/B Q42

EXPLANATION 1:

Card

FL4 B/B Q43

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q44

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q45

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q46

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q47

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q48

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q49

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q50

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q51

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q52

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q53

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q54

See Explanations for Most MCAT Questions Spreadsheet

FL4 B/B Q55

EXPLANATION 1:

Card

FL4 B/B Q56

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 B/B Q57

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 B/B Q58

EXPLANATION 1:

Card

FL4 B/B Q59

Currently not available โ€“ do you have an explanation? Share in the comments!

AAMC FL4 Psyc/Soc Explanations

Click the arrow to see all of the explanations in the C/P Section

FL4 P/S Q1

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q2

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q3

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q4

EXPLANATION 1:

Card

EXPLANATION 2:

Card

EXPLANATION 3:

Card

FL4 P/S Q5

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q6

EXPLANATION 1:

Card

FL4 P/S Q7

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q8

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q9

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q10

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q11

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q12

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q13

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q14

EXPLANATION 1:

Card

FL4 P/S Q15

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q16

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q17

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q18

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q19

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q20

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q21

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q22

See Explanations for Most MCAT Questions Spreadsheet

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 P/S Q23

EXPLANATION 1:

Card

FL4 P/S Q24

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q25

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 P/S Q26

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q27

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q28

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q29

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q30

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q31

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q32

See Explanations for Most MCAT Questions Spreadsheet

FL4 P/S Q33

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q34

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q35

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q36

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q37

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q38

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q39

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q40

EXPLANATION 1:

Card

FL4 P/S Q41

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q42

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q43

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q44

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q45

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 P/S Q46

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q47

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 P/S Q48

EXPLANATION 1:

Card

EXPLANATION 2:

Card

FL4 P/S Q49

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q50

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q51

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q52

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q53

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q54

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q55

Currently not available โ€“ do you have an explanation? Share in the comments!

Check out these MCAT lessons. We teach you the high-yield topics.

FL4 P/S Q56

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q57

EXPLANATION 1:

Card

FL4 P/S Q58

Currently not available โ€“ do you have an explanation? Share in the comments!

FL4 P/S Q59

Currently not available โ€“ do you have an explanation? Share in the comments!

 

10 point MCAT score improvement guarantee. Start today!

2 Responses to AAMC FL 4 Explanations [MCAT Practice Test Explanations Reddit Mega Compilation!]

  1. shannon thornton May 11, 2020 at 9:10 am #

    This is great! I’ve just been editing the document as I find ways to improve it. Not sure what you mean by receiving credit….name recognition is not important to me, but I’ll take Magoosh product credits ๐Ÿ˜‰

    • Magoosh Test Prep Expert
      Magoosh Test Prep Expert July 24, 2020 at 12:40 pm #

      I’m glad that you found this helpful and are working on this crowdsourced document! I know that future students will appreciate it. We linked to this document but didn’t create it and we don’t manage it. It’s a free crowdsourced resource taken from Reddit ๐Ÿ™‚


Magoosh blog comment policy: To create the best experience for our readers, we will only approve comments that are relevant to the article, general enough to be helpful to other students, concise, and well-written! ๐Ÿ˜„ Due to the high volume of comments across all of our blogs, we cannot promise that all comments will receive responses from our instructors.

We highly encourage students to help each other out and respond to other students' comments if you can!

If you are a Premium Magoosh student and would like more personalized service from our instructors, you can use the Help tab on the Magoosh dashboard. Thanks!

Leave a Reply