Which of the following parts of a cell produces energy?
Lysosomes
Mitochondria
Nucleolus
Microvilli
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Capillary blood: Capillary blood can be used in some cases, especially in infants, but it is less accurate than arterial blood for measuring blood pH and gases.
B. Arterial blood: Arterial blood is the correct sample for measuring blood pH and gases (such as oxygen and carbon dioxide levels) because it reflects the gas exchange occurring in the lungs.
C. Venous blood: Venous blood is not typically used for measuring blood gases as it does not accurately reflect the oxygenation status of the body.
D. Cerebrospinal fluid: Cerebrospinal fluid is not used for measuring blood pH and gases; it is typically analyzed for conditions affecting the brain and spinal cord.
Correct Answer is C
Explanation
A. Bland diet: A bland diet is used for gastrointestinal issues, not for hypertension management.
B. Clear liquid diet: A clear liquid diet is used temporarily post-surgery or during illness, not for managing hypertension.
C. Low-sodium diet: This is the correct diet plan for a patient with hypertension. Reducing sodium intake helps lower blood pressure and is a primary dietary recommendation for managing hypertension.
D. Low-protein diet: A low-protein diet is typically prescribed for patients with kidney disease, not hypertension.
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