Question

look back at the notes you took throughout the video.
cdk is what type of protein?
structural

hormone

antibody

enzyme

rewatch

Explanation:

CDK, or Cyclin-Dependent Kinase, is an enzyme that phosphorylates target proteins to regulate the cell cycle. Kinases are a class of enzymes that catalyze phosphate group transfers, so CDK falls into the enzyme category.

Answer:

enzyme