Brigham Young University-Idaho

Lipid-soluble signal molecules, such as testosterone, cross the membranes of all cells but affect only target cells because: - Answer Intracellular receptors are present only in target cells. Which type of receptor is most associated with metabolism, cell growth, and cell division? - Answer Tyrosine kinase receptors Which type of receptor is a dimer that when bound to the proper ligand auto phosphorylates? - Answer Tyrosine kinase receptors A drug designed to inhibit t...

The process by which nutrients are degraded to salvage their components and or generate energy is called? - Answer catabolism When 10,000 molecules of ATP are hydrolyzed to ADP and Pi in a test tube, about twice as much heat is liberated as when the same amount of ATP is hydrolyzed in a cell . Which of the following is the best explanation for this observation? - Answer The hydrolysis of ATP in a cell produces different chemical intermediates than does the reaction in a test tube ...

The molecule that functions as the oxidizing agent (electron acceptor) in an oxidation-reduction reaction A. gains electrons and gains potential energy. B. loses electrons and loses potential energy. C. gains electrons and loses potential energy. D. loses electrons and gains potential energy. E. gains electrons, but neither gains nor loses potential energy. - Answer A. Which of the following is one of the molecules directly produced when fructose-1,6-bisphosphate is split into two ...

Three ways that cancer cells differ from normal cells - Answer - Divide when they shouldn't - Invade surrounding tissues (malignant) - Move to other locations What is Cancer? - Answer Unregulated cell division Benign Tumor - Answer Doesn't affect surrounding tissues Malignant Tumor - Answer Invades surrounding tissues Metastasis - Answer cells break away from a malignant tumor and start a new cancer at another location Metastatic cells can trave...

Rule of the Tinkerer - Answer save the pieces what is the most famous fossil? - Answer archaeoptrics (aka Berlin Specimen) why is sex important? - Answer adds variability science relies on _______ - Answer evidence what are not half as rich a species as beetles - Answer flies (voluptuous) only 1/4 names of species that have been given names are - Answer coleoptra: beetles, etc. what are diptra - Answer flies reductionism - Answer ...

Why Do Cells Divide? - Answer 1. Replace normal wear and tear 2. Growth and Development 3. Replace cells that grow old (senescence) 4. We need them to for reproduction What do "Daughter Cells" need? - Answer All of the heredity of a "parent" cell. What are the characteristics of stem cells? - Answer 1. They help with self renewal and differentiation 2. Capable of dividing/renewing for long periods of time. 3. Unspecialized 4. Can become specialized W...

Haber-Bosch process and Ammonia - Answer Germans discovered how to make ammonia, from which they could make nitrate... make it through the Haber-Bosch Process= artificial N fixation...requires a tremendous amount of energy... uses roughly 1% of the world's energy Charles Lyell - Answer geologist that said the earth was more than 6,000 years old Robert Mathus - Answer said populations had a tendency to produce far too many individuals than the earth could hold Gregor...

Systematics - Answer Discovering the evolutionary relationships Biological Classifications - Answer Taxonomy, Phylogeny, Systematics, Clade Taxonomy - Answer Naming organisms -2 part name: Genus’s species (Genus capitalized, species lowercase. Both are italicized) Phylogeny - Answer classification based on evolutionary history Clade - Answer "family tree" of groups of organisms Hierarchical - Answer Domain, Kingdom, Phylum, Class, Order...

Recessive disorders: - Answer heterozygotes (Aa) are carriers but no condition Dominant disorders: - Answer heterozygotes (Aa) are carriers to the next generation and have the condition & homozygotes (AA) have the condition commonly in more severe form Sex Linked Conditions - Answer gene is carried on the sex chromosomes much more likely on the X than the Y hemophilia, red/green color blindness, patterned baldness Law of Independent Assortment - Answer genes (a...

Biological Evolution - Answer A change in the genetic characteristics of a POPULATION of organisms over time (Population evolve, not individuals) How are evolutionary changes inherited? - Answer - Genes - Environmental Pressures: can cause changes but are not necessarily evolutionary The Process By Which Evolution Occurs - Answer Natural Selection: Process by which traits become more or less common in a population due to consistent effects upon the survival and or re...