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Which posterior pituitary hormones are steroids? Neither of the hormones from here are steroids, vasopressin, aldosterone, cortisol
Enzymes and proteins are essential to living organisms, and the function of a protein is dependent upon its structure. List and describe the four levels of protein structure.
ada and Xavier have just had their baby's blood type determined. Jada has type B blood and Xavier has type A blood, so they were surprised to find out that their son has type O blood. What are the g
What two glands are the only locations in the body where immune cells are formed? A: hypothalamus and liver B: thymus and bone marrow. C: lymph nodes and GALT, D: Spleen and lymph nodes
Which cells are responsible for the production of hydroxyapatite? A: Chrondocytes, B: Osteoblasts, C; Osteocytes, D: Osteoclasts
Which of the following is NOT a characteristic of cardiac membrane depolarization / polarization leading to generation of the action potential? a. The presence of a large amount of negative charges
Which of the following processes does not result in a decreased production of cAMP by the activation of a GPCR: a. Decreased activity of GEF proteins b. Increased activity of phosphodiesterase c. De
Which of the following pairs of amino acids would carry a negative charge on their side chain at pH 8.0? a. Asparagine & Glutamine b. Leucine & Glycine c. Histidine & Lysine d. Aspartate
When a cell undergoes a hypersensitive response, it a. Builds cell walls quickly. b. Releases defense molecules from its vacuole. c. Dies rapidly. d. Destroys avirulence gene products
Which processes of phloem translocation require ATP? a. Phloem loading b. Phloem unloading c. Mass flow of water and solutes through phloem d. A and B e. A and C
What factors can regulate transpiration rates? a. Quantity and quality of light b. Atmospheric CO2 concentrations c. Water status of plant d. Atmospheric O2 concentrations e. A, B, and C
Statoliths are what kind of plastid? a. chloroplasts b. leucoplasts c. amyloplasts d. chromoplasts e. proteinoplasts
What kind of plastid is used by plants to detect gravity? a. chloroplasts b. leucoplasts c. amyloplasts d. chromoplasts e. proteinoplasts
What is phototropism? a. A growth response to UV light b. A directional growth response c. A temperature-regulated growth response d. A form of photosynthesis that affects plant movement
When phytochrome is exposed to red light, a. Pr converts to Pfr b. Pfr converts to Pr
Which hormone maintains seed dormancy? a. Cytokinen b. Gibberellic acid c. Florigen d. Auxin e. Abscissic acid
Which hormone most strongly affects cell division in embryos? a. IAA b. GA c. Ethylene d. AA e. CK
Which hormone can trigger cell wall expansion? a. Cytokinen b. Gibberellic acid c. Florigen d. Auxin e. Abscissic acid
How can you distinguish guard cells from non-guard cells? a. They contain mitochondria b. They contain chloroplasts c. They do not have plasmodesmata d. They have plasmodesmata e. B and C
All growth in plants is due to: a. Cell division in the three basic tissue systems and subsequent cell elongation b. Cell division at meristems and subsequent cell elongation c. Cell division as neede
What are intercalary meristems? a. Meristems that develop between internodes in some plants b. Meristems that develop primary meristematic tissues c. Meristems that are responsible for secondary growt
What ultimately controls pattern formation in Drosophila? a. Morphogen gradients and signaling molecules under maternal control b. Morphogen gradients and signaling molecules under embryonic control c
When does differentiation begin in flowering plants? a. Prior to fertilization b. Just after fertilization, but before any cell divisions take place c. Just after the first cell division d. At the bla