Final answer:
The false statement is that GTP is hydrolyzed by tubulin to cause the bending of flagella, as it's actually the dynein motor protein that facilitates this movement through ATP hydrolysis.
Step-by-step explanation:
The statement which is false is: "GTP is hydrolyzed by tubulin to cause the bending of flagella." This statement is incorrect because the bending of flagella and cilia is due to a motor protein called dynein, which causes microtubules to slide past one another, and not by tubulin hydrolyzing GTP. Tubulin is the protein which makes up microtubules and contributes to their structure, but the action of dynein, powered by ATP hydrolysis is what results in the bending motion of flagella and cilia.
Lamellipodia and filopodia are indeed extensions (often referred to as 'feelers') used by the cell to sense the environment and move. Transverse tubules in muscle cells are extensions of the plasma membrane and facilitate muscle contraction by spreading the action potential. Kinesin is a motor protein that moves along microtubules and is responsible for moving various types of cellular cargo, including organelle membranes like those of the endoplasmic reticulum (ER), thereby maintaining the ER network within the cell.