Test Prep PCAT Exam Practice Questions (P. 4)
- Full Access (282 questions)
- Six months of Premium Access
- Access to one million comments
- Seamless ChatGPT Integration
- Ability to download PDF files
- Anki Flashcard files for revision
- No Captcha & No AdSense
- Advanced Exam Configuration
Question #16
In which non-membranous compartment are ribosomes made in a eukaryotic cell?
- Anucleus
- Brough ER
- Cnucleolus
- Dcytoplasm
Correct Answer:
C
Ribosomes are manufactured inside of the nucleolus. RNA polymerases I and III work together to create ribosomes from rRNA and proteins.
C
Ribosomes are manufactured inside of the nucleolus. RNA polymerases I and III work together to create ribosomes from rRNA and proteins.
send
light_mode
delete
Question #17
Which of the following lists the correct taxonomic order from most inclusive to least inclusive?
- AKingdom, Order, Class, Species
- BOrder, Family, Genus, Phylum
- COrder, Family, Genus, Species
- DPhylum, Order, Species, Genus
Correct Answer:
C
Kingdom, Phylum, Class, Order, Family, Genus, Species. The mnemonic, ג€King Philip Came Over For Great Spaghetti,ג€ is very useful for remembering the taxonomic order from most inclusive to least inclusive.
C
Kingdom, Phylum, Class, Order, Family, Genus, Species. The mnemonic, ג€King Philip Came Over For Great Spaghetti,ג€ is very useful for remembering the taxonomic order from most inclusive to least inclusive.
send
light_mode
delete
Question #18
Which of the following corresponds to the coding strand of the following mRNA?
5'-GUAACGUCA- 3'
5'-GUAACGUCA- 3'
- A5'-GTAACGTCA-3'
- B5'-CATTGCAGT-3'
- C5'-ACUGCAAUG- 3'
- D5'-TGACGTTAC- 3'
Correct Answer:
A
The coding strand is NOT the complementary strand; it is the strand of DNA which is complementary to the strand from which mRNA is made. The coding strand will have the same sequence of bases as the produced RNA transcript except with thymine instead of uracil. A useful mnemonic for remembering the nucleotide bases in DNA and RNA is ג€GCAT PuPyג€ and ג€GCAU PuPy.ג€ GCAT/U stand for guanine, cytosine, adenine, thymine, and uracil, and ג€Puג€ and ג€Pyג€ represent purine and pyrimidine, respectively.
A
The coding strand is NOT the complementary strand; it is the strand of DNA which is complementary to the strand from which mRNA is made. The coding strand will have the same sequence of bases as the produced RNA transcript except with thymine instead of uracil. A useful mnemonic for remembering the nucleotide bases in DNA and RNA is ג€GCAT PuPyג€ and ג€GCAU PuPy.ג€ GCAT/U stand for guanine, cytosine, adenine, thymine, and uracil, and ג€Puג€ and ג€Pyג€ represent purine and pyrimidine, respectively.
send
light_mode
delete
Question #19
Which cells make up the insulated wrapping on axons?
- ASchwann cells
- Bastrocytes
- Cmicroglia
- Dmacrocytes
Correct Answer:
A
Axons are surrounded by insulating cells called Schwann cells. This insulation enables action potentials to travel rapidly throughout the nervous system.
A
Axons are surrounded by insulating cells called Schwann cells. This insulation enables action potentials to travel rapidly throughout the nervous system.
send
light_mode
delete
Question #20
Which of the following statements regarding energy production is true?
- AThere is a net total of 4 ATP produced in glycolysis.
- BThe GTP made in the TCA cycle does not become ATP.
- CThe cell requires energy to move NADH into the mitochondria.
- DThe net gain of ATP from each NADH is 2.
Correct Answer:
C
Transport of the NADH into the mitochondria in most cases requires 1 ATP. This is the reason that prokaryotes often have a higher yield of ATP per glucose when compared to eukaryotes. Usually 38 ATP are produced per glucose for prokaryotes, and 36 per glucose for eukaryotes.
C
Transport of the NADH into the mitochondria in most cases requires 1 ATP. This is the reason that prokaryotes often have a higher yield of ATP per glucose when compared to eukaryotes. Usually 38 ATP are produced per glucose for prokaryotes, and 36 per glucose for eukaryotes.
send
light_mode
delete
All Pages