Describe some of the various activities performed by membrane proteins in multicellular organisms. What will be an ideal response?


Concepts to Consider: Formation of cell-cell junctions; transport of molecules across the plasma
membrane; catalyzing important reactions; transmitting signals to other cells; acting as receptors

Biology & Microbiology

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Organs in developing flowers include all of the following EXCEPT _____

A) shoots B) sepals C) petals D) carpels

Biology & Microbiology

What are 3 adaptations of penguins for living in the sea?

What will be an ideal response?

Biology & Microbiology

What form of stimulus will cause the blood

vessels of the skin to decrease in diameter and contract?

a. decrease in temperature b. increase in temperature c. electrical stimulus d. mechanical stimulus e. more than one of these

Biology & Microbiology

White blood cells fight infection by

A. engulfing infectious pathogens and making antibodies. B. producing antibiotics that will kill bacteria and fungi. C. transporting large amounts of oxygen to the infected area. D. increasing platelet production and forming a plug to seal off the area.

Biology & Microbiology