Xanthophyll is a pigment found in plants that helps protect the photosynthetic protein D 1 from:
A. water reactions
B. chlorophyll
C. damage by high temperatures
D. damage by excess light energy
E. membranes
D. damage by excess light energy
You might also like to view...
In what ways do human X and Y chromosomes differ from one another?
A. The X chromosome is larger than the Y. B. The X chromosome has about 1,000 genes and the Y has only about 50. C. The X chromosome is found only in females, while the Y is found only in males. D. The X and Y chromosomes differ both in size and in number of genes. E. The X and Y chromosomes have no regions in common and do not pair during meiosis.
The greatest human challenge lies ahead. We have succeeded famously in becoming the technological species. Our survival now depends on our becoming the ecological species and taking our proper place in the economy of nature.
a. true b. false
Photosynthetic organisms of the open oceans are confined to the upper
A. two hundred meters. B. two hundred kilometers. C. two thousand kilometers. D. two hundred centimeters. E. two hundred millimeters.
Robust australopithecines were about twice the body weight of gracile australopithecines.
a. true b. false