Question

which of the following is not a motor protein?
actin
dynein
kinesin
myosin
question 8
1 pts
which two of the following will increase the fluidity of a membrane?
higher temperatures
more saturated phospholipids
less cholesterol (at moderate temperatures)

Explanation:

For the first question, dynein, kinesin, and myosin are motor proteins that use energy from ATP to move along cytoskeletal filaments. Actin is a structural protein that forms filaments but is not a motor protein. For the second question, higher temperatures increase the kinetic energy of membrane - components, increasing fluidity. At moderate temperatures, less cholesterol reduces the packing of phospholipids, increasing fluidity. Saturated phospholipids have straight tails that pack tightly, reducing fluidity.

Answer:

First question: A. actin
Second question: higher temperatures, less cholesterol (at moderate temperatures)