Glucose is converted into glucose 6-phosphate by hexokinase. Glucose 6-phosphate then serves as the substrate for the enzyme phosphoglucose isomerase, which converts this reactant into fructose 6-phosphate. Fructose 6-phosphate serves as the substrate for phosphofructokinase, which converts fructose 6-phosphate into fructose 1,6-bisphosphate. Based on the information provided, this is an example of what?
A. Feedback inhibition
B. A metabolic pathway
C. Allosteric regulation
D. Enzyme inhibition
Answer: B
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A homologous pair of mitotic chromosomes will possess _______ alleles for each locus.
A. 2 B. 4 C. 8 D. 1 E. 50% of the
According to the concept of ___________, species evolve continuously over long spans of time.
Fill in the blank(s) with the appropriate word(s).
How do sensory cells communicate different types of information to the brain-touch versus light for example?
A. by firing action potentials of varying amplitudes in the same neuron B. by using different kinds of receptor potentials in the same neuron C. by using different kinds of electrical signals in the same neuron as the information is conveyed to the brain D. by using different neurons for different stimuli (e.g., light and touch) E. by firing action potentials at different frequencies in the same neuron
Carbon cycles more quickly through cold and dry ecosystems than it does through warm and wet ecosystems
Indicate whether the statement is true or false