Which plants is the sporophyte generation clearly larger, more complex, and longer living than the gametophyte generation?
a. in seedless plants
b. in seed plants
c. in bryophytes
d. in all vascular plants
Ans: d. in all vascular plants
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When plants reduce SO4 to form H2S during ____________, SO4 ___________ electrons
A. assimilation; gains B. assimilation; loses C. anammox; gains D. anammox; loses E. anaerobic respiration; gains F. anaerobic respiration; loses
Which level of protein structure ultimately determines all the other levels of structure?
A. primary B. secondary C. tertiary D. quaternary
The purple sulfur bacteria carry out oxygenic photosynthesis.
Answer the following statement true (T) or false (F)
What is the role of the nuclear localization sequence in a nuclear protein?
(a) It is bound by cytoplasmic proteins that direct the nuclear protein to the nuclear pore. (b) It is a hydrophobic sequence that enables the protein to enter the nuclear membranes. (c) It aids in protein unfolding so that the protein can thread through nuclear pores. (d) It prevents the protein from diffusing out of the nucleus through nuclear pores.