#Question id: 5021
#Unit 11. Evolution and Behavior
Most dinosaurs and pterosaurs become extinct at the close of the __________ era.
#Question id: 19787
#Unit 13. Methods in Biology
#Question id: 32403
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 4395
#Unit 3. Fundamental Processes
Which of the following chemicals would be the most appropriate for the 5’ labeling of a DNA strand with a radioactive phosphate?
#Question id: 13228
#Unit 6. System Physiology – Plant
Mineral nutrient |
Functions |
A.) Silicon(Si) |
1.) Constituent of alcohol dehydrogenase, glutamic
dehydrogenase, carbonic anhydrase, etc |
B.) Manganese(Mn) |
2.) Component of sugar phosphates, nucleic acids, nucleotides,
coenzymes, phospholipids, phytic acid, etc. Has a key role in reactions that
involve ATP |
C.) Zinc(Zn) |
3.) Contributes to cell wall mechanical properties,
including rigidity and elasticity. |
D.) Phosphorous(P) |
4.) Component of ascorbic acid oxidase, tyrosinase,
monoamine oxidase, uricase, cytochrome oxidase, phenolase, laccase, and
plastocyanin. |
E.) Copper(Cu) |
5.) Required for activity of some dehydrogenases,
decarboxylases, kinases, oxidases, and peroxidases. Involved with other
cation-activated enzymes and photosynthetic O2 evolution |