Answer:
Option (1).
Explanation:
Biological membrane mainly composed of lipids and proteins with the small amount of carbohydrate exposed on the outer surface of the membrane. This membrane plays an important role as it separates the cellular environment and facilitate the transport of the selected molecule.
The flippase enzyme is required to transport the molecules from one side of the membrane to the other membrane. Lipids and proteins can undergo lateral motion but at the different rate within the membrane.
Thus, the correct answer is option (1).
 
        
             
        
        
        
Answer:
First, the options:
A. Midazolam
B. Ketamine
C. Nitrous Oxide
D. Bupivacaine
The ANSWER is A. 
A. Midazolam
Explanation:
A. Midazolam✔
Midazolam is mainly used for amnesia or sedation in many diagnostic, therapeutic, and endoscopic activities or procedures. 
B. Ketamine ❌
It has higher risk of side effects. 
C. Nitrous oxide ❌
It won't be preferable for this case, since it can not be breathed in during a bronchoscopy. 
D. Bupivacaine❌
This is solely for local anesthesia.
 
        
             
        
        
        
The allele that is masked is recessive. The one which masks it is dominant.
        
             
        
        
        
Try 15 that would add up to 100