To initiate a signal transduction pathway, a signal binds to a receptor protein usually located in the
A) nucleus.
B) plasma membrane.
C) ER.
D) cytoplasm.
Answer: B
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What would enhance water uptake by a plant cell?
A) decreasing the ? of the surrounding solution B) increasing the pressure exerted by the cell wall C) the loss of solutes from the cell D) increasing the ? of the cytoplasm E) positive pressure on the surrounding solution
In the absence of ATP, a contracted muscle can't relax
Indicate whether the statement is true or false
How does baker's yeast in bread dough make the bread rise?
What will be an ideal response?
The three greatest current threats to biodiversity, in order starting with the greatest, are
A) habitat loss, overharvesting, and invasive species. B) habitat loss, invasive species, and overharvesting. C) invasive species, habitat loss, and overharvesting. D) invasive species, overharvesting, and habitat loss.