How are the light reactions and the Calvin cycle related to each other?

Which of the following flow mechanisms CANNOT be compensated for?(i.e. intravoxel dephasing effects are completely irreversible)

A 64 x 64 MRI image has a field of view along both directions of 640 mm. Which of the following would cause an INCREASE in the spatial resolution? (Choose TWO answers)

Which of the following would NOT change the signal-to-noise ratio?

The term “first order motion” means that:

A bipolar gradient has a magnitude of 8.0 mT/m. Each lobe of the gradient is applied for 1.25 ms. a) What is the VENC setting for this acquisition?  Express your answer in cm/s. (2) b) Blood in a vessel is flowing at a velocity of +130.0 cm/s.  What will be the aliased velocity?  Express your answer in cm/s. (2)

Determine the amplitude of the bipolar gradient if the VENC setting is chosen to be 150.0 cm/s. Each lobe of the gradient is applied for a time of 1.20 ms.  Express your answer in mT/m.

Calculate the scan time in minutes and seconds (i.e. ___ minutes and ___ seconds) for a multislice MRI acquisition with a repetition time TR equal to 2500 ms, 64 phase encoding steps, and a NEX of 2. Put your answer in the answer box along with any work if desired.

Spatial presaturation pulses can be used to reduce: (Select one or more)

Ghost images of a blood vessel appear separated by a distance of 15.0 cm on an MRI image. ©NAIT a) In which direction (horizontal or vertical) is the phase encoding direction? b) If the repetition time is 450 ms, and assuming the ghosts are not aliased, what is the period of the pulsate flow in the blood vessel?  Express your answer in seconds.c) What would the repetition time have to be to move the ghosts to the edge of the image? Use the answer in b) as the period of the pulsate flow.  Express your answer in ms.