The endodermis of a root
a. regulates the transport of water and minerals into the vascular system.
b. produces root hairs for the absorption of water and minerals.
c. produces lateral roots in woody dicotyledons.
d. transports starch to parenchyma cells for storage.
e. produces starch in the roots of dicotyledons.
A; The endodermis contains the Casparian strip. The Casparian strip forces materials to pass through the cytoplasm of endodermal cells thus "filtering" materials before they pass into the xylem.
You might also like to view...
Histone acetyl transferases exert their effect on gene activity by _____
A) neutralizing positive charges on the lysines of histones B) introducing negative charges on the glutamic acids of histones C) modifying the DNA sequence of the promoter D) increasing the affinity of transcriptional activators for DNA E) increasing the affinity of transcriptional inhibitors for DNA
Flattened sacs of internal membranes associated with photosynthesis are called
A. chloroplasts. B. photosystems. C. the stroma. D. thylakoids. E. cristae.
Which of the following is a cellular characteristic of ALL eukaryotes?
a) a nuclear membrane b) a cell wall c) a nucleoid d) few to no organelles in the cytoplasm e) few to no proteins associated with the DNA
Which of the following pertain to movement of plants?
A. phototropism B. nastic movements C. gravitropism D. thigmotropism E. All of the choices are correct.