The difference between activating and inhibitory receptors  in NK cells lie in their association with accessory proteins that promote downstream signaling, or in their ability to recruit and activate inhibitory phosphatases, respectively.  

In patients with lymphomas, the cancer cells invade the bone marrow and destroy the environment required for normal hematopoiesis. This leads to bone marrow failure, which disrupts the production of hematopoietic cell lineages. All of the following cell types would be affected by this EXCEPT

Usually, insulin is needed to allow glucose to enter a cell. However, exercise can increase glucose uptake WITHOUT insulin being present. Why?

Jimmy is running a half-marathon at his goal marathon pace as part of training. His goal pace occurs at 80% of his VO2 max. What is the primary energy source?

______ _must activate fatty acids in the cytoplasm before the FA may enter the mitochondria for Beta Oxidation

Blood flow is redistributed during exercise at high intensities (>85% VO2max) to the working skeletal muscle and away from adipose tissue. Meanwhile, lipolysis is the adipose tissue continues to occur. What impact will this have on FFA oxidation in the skeletal muscle?

Only 2 amino acids can be directly oxidized for ATP synthesis in skeletal muscle. What energy system can they enter immediately after they are converted to acetyl-coA?

Jimmy’s sister Jane lifts weight regularly at the gym. What is the acute response of protein synthesis while she completes leg day? (i.e. what is happening while she is working out?)

During periods of starvation or fasting, protein can be broken down and converted to glucose in the liver. What is this process called?

At what exercise intensity does fat’s contribution as an energy substrate become virtually nonexistent?