As your fingers type up the answers to this exam, this is best described by what type of energy?

You are researching a galaxy using stunning images from JWST.  You are focusing on a particular aspect – a signature typically found at 300 nm.  Which of the following is a TRUE statement regarding the galaxy if the same signature is detected, but now located at 310 nm. Select all that apply.

The light from a distant galaxy

My favorite color is red defined as 650 nm.  How energetic is this amazing color? 

In the presence of an ATP analog that can bind myosin normally but cannot be hydrolyzed…

The actin-nucleating protein formin has flexible “whiskers” containing binding sites that help recruit actin subunits in order to enhance polymerization by this protein. What protein would you expect to bind to these sites?

The rod photoreceptors in the eye are extremely sensitive to light. The cells sense light through a signal transduction cascade involving light activation of a GPCR that activates a G protein that activates cyclic GMP phosphodiesterase. How would you expect the addition of the following drugs to affect the light-sensing ability of the rod cells? Explain your answers. a drug that inhibits cyclic GMP phosphodiesterase a drug that is a nonhydrolyzable analog of GTP

Which of the following choices reflects the appropriate order of locations through which a protein destined for the plasma membrane travels?

In a cell that lacks cytosolic Hsc70: 

Activated protein kinase C (PKC) can lead to the modification of the membrane lipids in the vicinity of the active PKC. The Figure below shows how G proteins can indirectly activate PKC. You have discovered the enzyme activated by PKC that mediates the lipid modification. You call the enzyme Rafty and demonstrate that activated PKC directly phosphorylates Rafty, activating it to modify the plasma membrane lipids in the vicinity of the cell where PKC is active; these lipid modifications can be detected by dyes that bind to the modified lipids. Cells lacking Rafty do not have these modifications, even when PKC is active. Which of the following conditions would lead to signal-independent modification of the membrane lipids?