Some plant cells take advantage of the high concentration of protons outside the cell to move solutes, such as sucrose, across the plasma membrane into the cell where the sucrose concentration is already relatively high. This type of transport is an example of:
a) secondary active transport.
b) osmosis.
c) passive transport.
d) facilitated diffusion.
Answer: a) secondary active transport.
You might also like to view...
The G + C content of a DNA sample can be estimated from its TMĀ of a DNA.
Answer the following statement true (T) or false (F)
_____ is a special case of speciation in which new species form rapidly in response to numerous "open" ecological niches
A. allopatric speciation B. peripatric speciation C. adaptive radiation D. co-speciation E. sympatric speciation
Mucin is a major component of saliva, which lubricates the teeth and causes food to stick together during swallowing
Indicate whether the statement is true or false
Spicy foods often contain the chemical capsaicin, which activates certain receptors in the mouth, causing your mouth to feel like it is "burning." The receptors activated by capsaicin are also activated by
A) sweet foods. B) salty foods. C) very hot temperatures. D) glutamate. E) acidic foods.