Which of the following is a product of glycolysis?
Lactate
Carbon dioxide
Pyruvate
Acetyl-CoA
The Correct Answer is C
A. Lactate is produced during anaerobic metabolism (when oxygen is scarce) as a byproduct of glycolysis, but it is not the direct product of glycolysis itself.
B. Carbon dioxide is a byproduct of cellular respiration, specifically during the Krebs cycle, not glycolysis.
C. Pyruvate is the end product of glycolysis, where glucose is broken down into two molecules of pyruvate.
D. Acetyl-CoA is formed from pyruvate during the transition step before the Krebs cycle, not directly from glycolysis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Renal filtrate refers to the fluid filtered from the blood in the glomerulus, which is the initial stage of urine formation. It does not immediately precede urine.
B. Tubular fluid is the filtrate as it passes through the nephron tubules, undergoing various processes like reabsorption and secretion. This fluid eventually becomes urine, after the final adjustments in the collecting duct.
C. Plasma is the liquid component of blood that is filtered by the glomerulus, but it is not the direct precursor to urine.
D. Glomerular filtrate is the fluid filtered out of the blood in the glomerulus and is the precursor to tubular fluid, not directly to urine.
Correct Answer is C
Explanation
A. Posterior pituitary releases hormones such as ADH (antidiuretic hormone), but it does not have aldosterone receptors.
B. Proximal convoluted tubule is involved in reabsorption, but it does not have aldosterone receptors.
C. Distal convoluted tubule: Aldosterone receptors are found in the cells of the distal convoluted tubule. Aldosterone increases sodium reabsorption and potassium excretion in this part of the nephron, which helps regulate blood pressure and electrolyte balance.
D. Adrenal medulla produces catecholamines (e.g., adrenaline) but does not contain aldosterone receptors.
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