In electron transport, which respiratory complex is not involved in the flow of electrons from NADH?
A) complex I
B) complex II
C) complex III
D) complex IV
E) all of the above
B) complex II
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Cholesterol functions in the plasma membrane to
A. transport ions. B. serve as an energy molecule. C. maintain fluidity. D. mediate steroid action. E. maintain hypertension.
Which of the following statements is false regarding amphibolic pathways?
A. Glyceraldehyde-3-phosphate is used as a precursor for amino acid, lipid, and carbohydrate synthesis. B. Glucose is broken down in glycolysis; however, not all of the intermediates in the pathway are utilized as an energy source. Many leave the pathway to serve as precursors for complex molecules. C. Metabolic pathways are amphibolic, that is, catabolism and anabolism are intertwined in order to conserve energy in the cell. D. All organisms use metabolic pathways to synthesize the 20 amino acids necessary for protein synthesis using precursors from catabolic processes. E. Glucose is broken down during glycolysis to pyruvate; however, when glucose is in short supply, pyruvate is used as a precursor in the process of gluconeogenesis.
What makes a prion unique as an infectious particle?
What will be an ideal response?
Which of the following is NOT a function of oxytocin?
A. pair bonding B. milk-ejection reflex C. milk production D. uterine contractions