How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Which of the following parts of a cell produces energy?

A.

Lysosomes

B.

Mitochondria

C.

Nucleolus

D.

Microvilli

Answer and Explanation

The Correct Answer is B

A. Lysosomes: Lysosomes contain digestive enzymes that break down waste materials and cellular debris but are not responsible for energy production.
B. Mitochondria: Mitochondria are known as the "powerhouses" of the cell because they produce energy through cellular respiration.
C. Nucleolus: The nucleolus is involved in producing ribosomes and RNA synthesis, not energy production.
D. Microvilli: Microvilli increase the surface area of cells for absorption but do not produce energy.
 


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is C

Explanation

A. Convulsions: Convulsions are not a common complication of phlebotomy; they are unrelated to the procedure.
B. Petechiae: Petechiae are small red spots that can occur but are less common than hematomas in phlebotomy.
C. Hematoma: A hematoma, or bruise, is the most common complication resulting from the accumulation of blood outside the vein after a blood draw.
D. Hypovolemia: Hypovolemia, or low blood volume, is not a common complication from routine phlebotomy.

Correct Answer is B

Explanation

A. C-reactive protein (CRP): CRP is typically tested using a serum sample collected in a gold or red-top tube, not a light blue tube.
B. Partial thromboplastin time (PTT): PTT is a coagulation test that requires a light blue top tube containing sodium citrate, which acts as an anticoagulant. This tube is specifically used for coagulation studies.
C. Glucose: Glucose levels are commonly measured using a gray-top tube containing sodium fluoride to inhibit glycolysis, not a light blue tube.
D. Lactate: Lactate levels are typically measured using a gray-top tube or green-top tube, depending on the specific protocol, not a light blue tube.

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register