This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Enzymes, Subject name: Biochemistry
Cell shape and motility are provided by 
Select and explain. 
A. Microfilaments, B. Microtubules, C. Golgi apparatus, D. Mitochondria
B: Microtubules
Answer: B: Microtubules 
Explanation: Microtubules are polymers of tubulin that form pa of the cytoskeleton and provide structure and shape to cells