What is the main function of the nucleus?
A) To hold all of the DNA
B) To hold all of the RNA
C) To produce proteins
D) To produce energy
A
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What term refers to the ability of a cell membrane to regulate which molecules can enter and exit the cell?
a. transport selection b. osmosis c. cell recognition d. selective permeability e. fluidity
You are working on a research project that involves a mutational analysis of the light harvesting complex Lhca1, which is an important light harvesting complex found in plants. Your labmate asks where this complex is located. You say it is in the
A. inner chloroplast membrane B. matrix C. thylakoid membrane D. stroma E. outer chloroplast membrane
A. Nasal cavity B. Pharynx C. Epiglottis D. Larynx E. Trachea F. Pleural membrane G. Left lung H. Bronchus I. Bronchiole J. Diaphragm K. Intercostal muscles
The nonequilibrium created by ____ represents a renewing source of energy
a. temperature gradients b. acidic ocean vents c. alkaline ocean vents d. radioactive decay e. protocell formation