Mile Down MCAT Biology Exam
2026/2027 Updated Verified
Questions and Solutions A+
Pass Guaranteed
1. Nucleoid region
- ANS - DNA region in prokaryotes
2. Nucleolus
- ANS - Makes ribosomes. Sit in nucleus, no membrane
3. Peroxisomes
- ANS - collect and break down material
4. rough ER
- ANS - accept mRNA to make proteins
5. smooth ER
- ANS - detox and make lipids
,6. golgi apparatus
- ANS - modify/distribute proteins. only in eukaryotes
7. vesicular transport
- ANS - Transport of large particles and macromolecules
across plasma membranes
8. cisternal maturation
- ANS - The process of cargo movement through the Golgi
apparatus by residing in cisternae that mature from cis to
trans via the import and export of different Golgi
enzymes.
9. peroxisomes
- ANS - collect and break down material
10. centrioles
- ANS - 9 groups of microtubules, pull chromosomes apart
11. lysosomes
- ANS - demo and recycling center. made by golgi, single
membrane
,12. plasmids
- ANS - in prokaryotes. Carry DNA. not necessary for
survival
13. bacilli
- ANS - Rod shaped bacteria
14. cocci
- ANS - spherical bacteria
15. spirilla
- ANS - spiral shaped bacteria
16. obligate aerobe
- ANS - requires O2
17. obligate anaerobe
- ANS - dies in the presence of oxygen
18. facultative anaerobe
- ANS - toggle between aerobic/anaerobic
, 19. aerotolerant anaerobe
- ANS - does not utilize oxygen but can survive and grow
in its presence
20. gram positive bacteria
- ANS - stains purple
21. gram negative bacteria
- ANS - stains pink/red
22. gram positive bacteria
- ANS - thick peptidoglycan/lipoteichoic acid cell wall
23. gram negative bacteria
- ANS - thin peptidoglycan cell wall and an outer
membrane
24. eukaryote
- ANS - ETC in mitochondria
25. large ribosomes
26. reproduce via mitosis
27. prokaryote
- ANS - ETC in cell membrane
2026/2027 Updated Verified
Questions and Solutions A+
Pass Guaranteed
1. Nucleoid region
- ANS - DNA region in prokaryotes
2. Nucleolus
- ANS - Makes ribosomes. Sit in nucleus, no membrane
3. Peroxisomes
- ANS - collect and break down material
4. rough ER
- ANS - accept mRNA to make proteins
5. smooth ER
- ANS - detox and make lipids
,6. golgi apparatus
- ANS - modify/distribute proteins. only in eukaryotes
7. vesicular transport
- ANS - Transport of large particles and macromolecules
across plasma membranes
8. cisternal maturation
- ANS - The process of cargo movement through the Golgi
apparatus by residing in cisternae that mature from cis to
trans via the import and export of different Golgi
enzymes.
9. peroxisomes
- ANS - collect and break down material
10. centrioles
- ANS - 9 groups of microtubules, pull chromosomes apart
11. lysosomes
- ANS - demo and recycling center. made by golgi, single
membrane
,12. plasmids
- ANS - in prokaryotes. Carry DNA. not necessary for
survival
13. bacilli
- ANS - Rod shaped bacteria
14. cocci
- ANS - spherical bacteria
15. spirilla
- ANS - spiral shaped bacteria
16. obligate aerobe
- ANS - requires O2
17. obligate anaerobe
- ANS - dies in the presence of oxygen
18. facultative anaerobe
- ANS - toggle between aerobic/anaerobic
, 19. aerotolerant anaerobe
- ANS - does not utilize oxygen but can survive and grow
in its presence
20. gram positive bacteria
- ANS - stains purple
21. gram negative bacteria
- ANS - stains pink/red
22. gram positive bacteria
- ANS - thick peptidoglycan/lipoteichoic acid cell wall
23. gram negative bacteria
- ANS - thin peptidoglycan cell wall and an outer
membrane
24. eukaryote
- ANS - ETC in mitochondria
25. large ribosomes
26. reproduce via mitosis
27. prokaryote
- ANS - ETC in cell membrane
