#Question id: 11218
#Unit 7. System Physiology – Animal
Neurotransmitters
can affect postsynaptic cells by ________.
I)
initiating signal transduction pathways in the cells
II)
causing molecular changes in the cells
III) altering ion channel proteinsIII) altering ion channel proteins
IV) altering the permeability of the cells
#Question id: 10341
#Unit 6. System Physiology – Plant
The accumulation of nitrate that results from diminished nitrate reductase activity, this symptoms is caused by
#Question id: 2647
#Unit 2. Cellular Organization
Which of this mode of trp regulation is not possible in eukaryotes?
#Question id: 11647
#Unit 7. System Physiology – Animal
After menopause, hormone replacement therapy with estrogen-like compounds is effective in preventing the progression of osteoporosis. What is the mechanism of their protective effect?
#Question id: 10376
#Unit 6. System Physiology – Plant
Symbiotic nitrogen-fixing rhizobia release nodulation (Nod) factors as signaling agents as they near the surface of a legume root. The interaction between specific nod factors and their corresponding receptors. Which of the following statements is incorrect?