Arsenic is a poison that binds to a molecule needed to build acetyl CoA. Based on this information, which part of cellular respiration would be stopped if arsenic were ingested?
A) glycolysis
B) citric acid cycle
C) electron transport chain
D) ATP synthase
Answer: B
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During cellular respiration, acetyl CoA accumulates in which location?
A) cytosol B) mitochondrial outer membrane C) mitochondrial inner membrane D) mitochondrial intermembrane space E) mitochondrial matrix
How is a carrier protein different from a channel protein?
A. Carriers use ATP. B. Carriers undergo a conformation change. C. Transport through a carrier depends on concentration gradients. D. Transport through a carrier does not depend on the random motion of molecules.
Enzymes
a. control the speed of a reaction. b. change shapes to facilitate certain reactions. c. may place physical stress on the bonds of the substrate. d. always work on their own. e. do all of these.
The shorter the wavelength of a radiation source, the greater its likelihood of causing damage
Indicate whether the statement is true or false