Nokea
If the zygomatic arch is broken, where is the fracture located?
- A. Face
- B. Knee
- C. Shoulder
- D. Wrist
Correct Answer: A
Rationale: The zygomatic arch, also known as the cheekbone, is a bony structure on the side of the face. A fracture in this area is classified as a facial fracture, making the correct location for the fracture in the face.
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Which of the following statements about antibiotics is incorrect?
- A. They can interfere with the bacteria's ability to survive.
- B. They can affect how bacteria multiply.
- C. They can cause more bacteria to grow.
- D. They only work on bacteria.
Correct Answer: C
Rationale: Antibiotics are medications designed to inhibit or kill bacteria. Options A and B are true statements about antibiotics, as they interfere with bacteria's ability to survive and affect their multiplication. However, antibiotics do not cause more bacteria to grow; instead, they aim to decrease bacterial growth by killing or inhibiting them. Therefore, the statement in option C is incorrect, making it the correct answer.
What does the mitochondrion produce that causes it to often be called the powerhouse of the cell?
- A. ATP
- B. Enzymes.
- C. Proteins.
- D. DNA.
Correct Answer: A
Rationale:
The cellular membrane consists of a bilayer of which substances?
- A. Nucleic acids
- B. Phospholipids
- C. Proteins
- D. Carbohydrates
Correct Answer: B
Rationale: The cellular membrane is primarily composed of a phospholipid bilayer, forming the structure that regulates entry and exit.
Which set is correctly listed from largest to smallest group?
- A. Genus, order, species, phylum.
- B. Phylum, order, genus, species.
- C. Order, phylum, species, genus.
- D. Species, order, phylum, genus.
Correct Answer: B
Rationale:
Which characteristic is true of prokaryotic cells?
- A. Have a nucleus
- B. Have a capsule
- C. Have membrane-bound organelles
- D. Cannot move on their own
Correct Answer: B
Rationale: Prokaryotic cells are characterized by the absence of a nucleus; instead, they have a nucleoid region where the genetic material is located. Prokaryotic cells often have a capsule, a protective layer outside the cell wall that plays a role in protection and adherence to surfaces. While eukaryotic cells have membrane-bound organelles, prokaryotic cells lack these membrane-bound structures. Prokaryotic cells are capable of movement, facilitated by structures like flagella or pili.