All of the following are characteristics of proteins in the cell membrane except

contains many folded layers
form channels to allow certain molecules to pass
pump charged atoms across the membrane
link the inside and the outside of the cell

all of the following are characteristics of muscle tissues except

have striations and stripes.
made of actin and myosin proteins.
has support cells called glial cells.
require atp as fuel for contraction.


Why is it important that fibrin is insoluble in water?

A5-year-old boy suddenly begins coughing while eating peanuts. he is choking and gagging. when he is brought to the ed, but he is awake and is able to give his name. on physical examination, his vital signs are stable. on examination of the chest, inspiratory stridor and intercostal and suprasternal retractions are apparent. which of the following is the most appropriate initial step in management? - allow patient to clear foreign object by spontaneous coughing- clear oropharynx with multiple blind sweeps with finger- position patient and perform back blows- stand behind patient and perform abdominal thrusts- perform emergency tracheostomy and take to surgery

Sadie and her mom were at a hardware store to purchase smoke detectors for their new home. sadie's mom was unsure how many units she should purchase. what is the general recommendation? a. one large one for the middle of the house b. every room in the house should have one c. kitchen, garage and laundry room- since those are where most fires happen d. every living area including the hallway by the bedrooms should have a smoke detector.