The polar transport of auxin in a plant
a. creates an uneven distribution of the
hormone.
b. uses active membrane transporters to move
auxin in and out of cells.
c. uses membrane pumps to move hydrogen
ions out of the cytoplasm into the primary
cell wall.
d. activates enzymes that loosen cross-links
between cellulose microfibrils.
e. does all of these
E
You might also like to view...
Which of the following describes the correct path of air through a bird's respiratory system?
A. trachea, posterior air sacs, lungs, anterior air sacs, trachea B. trachea, anterior air sacs, lungs, posterior air sacs, trachea C. trachea, lungs, anterior air sacs, posterior air sacs, trachea D. trachea, lungs, posterior air sacs, anterior air sacs, trachea E. trachea, anterior air sacs, posterior air sacs, lungs, trachea
Strength training involves ____
a. activities like jogging and swimming b. intense, short duration activity c. decreased number of myofibrils d. recruiting more enzymes in aerobic activity e. producing muscles with higher endurance
Which of the following is a parasitic excavate that causes African sleeping sickness, a disease spread by the tsetse fly?
A) Plasmodium B) Trypanosoma C) Paramecium D) Amoeba
Studies using fissure water from gold-mining operations nearly 3 km deep indicate that the bacteria present use what for energy?
a. organic carbon b. sulfur c. iron d. H2