A major fully reduced form of carbon, important in biogeochemical cycling is ________.
A. hydrogen sulfide
B. carbohydrate
C. methane
D. carbon dioxide
Answer: C
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Match the motor molecule to its function.
A) slides along actin in sarcomere B) activation of sliding in flagellar microtubule C) motion toward "minus" end of microtubule D) binds to membranes E) motion toward "plus" end of microtubule 1) cytoplasmic dynein 2) axonemal dynein 3) kinesin 4) myosin V, dimer 5) myosin II, filament
Which statement is not true about the rod cells? a. Detect dim light
b. Least abundant photoreceptor. c. Contain the pigment rhodopsin. d. Respond to changes in light intensity. e. Most abundant photoreceptor.
The type of transport ATPase that is reversibly phosphorylated as part of the transport mechanism is the ________ ATPase
Fill in the blank with correct word.
Which of the following statements regarding the demonstration of the etiology of disease is FALSE?
A) The suspect agent must be present in all cases of disease. B) The suspect agent must cause the disease under investigation when introduced into a susceptible host organism. C) The suspect agent must be isolated and cultured in the laboratory. D) It must be possible to reisolate the suspect agent from the infected experimental host. E) The suspect agent must be the only potential pathogen present in disease cases.