A cell membrane that is selectively permeable
A) is impermeable to all substances but water.
B) randomly chooses which substances will pass through.
C) can change which substances pass through by changing its lipid and protein content.
D) will only allow substances in or out if their concentration in the cell is above or below a
certain point.
C) can change which substances pass through by changing its lipid and protein content.
You might also like to view...
The dural sinuses form between which two layers of the cranial dura mater?
A) pia and arachnoid layers B) periosteal and endosteal layers C) meningeal and cranial layers D) periosteal and meningeal layers E) superior and inferior sagittal layers
Excessive changes can actually cause a rupture of the red blood cell
Indicate whether the statement is true or false
Excessive mammary development in males is called:
A) feminum B) gynecomastia C) gyneconium D) feminomastia
A volleyball player depends on the gastrocnemius muscles for plantar flexion, whereas a marathon runner depends more on the soleus muscles for the same action. What characteristic of the soleus muscles makes this so?
A. They don't have as many blood capillaries per gram of tissue. B. They break ATP down to ADP and Pi faster. C. They make more use of aerobic respiration. D. They have smaller mitochondria. E. They have more glycogen in them.