Which epithelial cell is best suited for diffusion?
a. stratified cuboidal
b. simple squamous
c. simple columnar
d. stratified squamous
e. stratified columnar
b
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The gag gene of the HIV genome encodes:
A. reverse transcriptase. B. capsid. C. integrase. D. surface glycoprotein. E. protease.
The two primary functions of chlorophyll are to ____________________
a. absorb light and reflect light b. absorb light and transfer energy to other compounds c. reflect light and transfer energy to other compounds d. absorb light and eliminate excess water
What is the net movement of molecules from an area of higher concentration to an area of lower concentration?
a. Osmosis b. Diffusion c. Redox-reaction d. Electron transfer chain e. Metabolic pathway
Which of the following is a function of plastids?
a. storing starches, proteins, and pigments b. protecting the cell membrane from damage c. modifying the DNA structure of an organelle d. gathering energy from organic molecules