This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Carbohydrates, Subject name: Biochemistry
GLUT 4 is present in - 
Select and explain. 
A. Endothelium, B. Liver, C. Cardiac muscle, D. Lens
C: Cardiac muscle
Answer: C: Cardiac muscle 
Explanation: Ans. is 'c' i.e., Cardiac muscle* GLUT4 transporters mediate insulin dependent glucose uptake in skeletal muscle, cardiac muscle and adipose tissue