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Which of the following is NOT a potential cause of cancer a. hyperphosphorylation of the pRb protein b. reduction or ablation of the activity of p53 and/ or p21 c. inability to exit from the GO stage
Question 1: What is an estuary? Question 2: why are estuaries important? Question 3: What would be four key environmental factors shaping (or affecting) the estuary ecosystem and how do they influen
Question 1: How does a charged tRNA deliver an amino acid to a growing polypeptide chain in the correct order?Question 2: Lipoproteins: (Chylomicrons; VLDL; LDL; IDL and HDL) a) name the least dense a
Question 1: Describe how an mRNA strand gets processed (in eukaryotic organisms) before it is translated. In what ways is this processing beneficial? Question 2: How does transcription of a gene end
Question 1: What is the mechanism of infection of Aeromonas hydrophila in Humans? Question 2: What is the function of the auidtory tube?
Question 1: What areas of ocean are the most productive? Question 2: What kind of community is the most critical in making the ecosystem productive?
Question 1: Describe the process of terrestrial successions (primary and secondary successions) by naming plants Question 2: How does a climax community differ from a successional community?
Question 1: What is an estuary? Question 2: Why are estuaries important?
Discuss how bacteria are capable of using different energy molecules suh as sugars, amino acids, lipids, etc. to produce ATP. Be sure to mention different electron carrier, donor, and acceptor molec
Question 1: What can contribute to the virulence of a pathogen? Question 2: Describe the factors required for degree of infectivity and invasiveness of a pathogen.
What is the circadian pattern of ACTH release, and what endocrine gland releases it? ACTH is not a hormone so it is not released from an endocrine glandm, The anterior pituitary will release more ACTH
Which of the following contributes to preventing more than one ovum or follicle from maturing at the same time? The FSH surge inhibits follicle maturation for any follicles remaining in the ovary, Inc
What is required to activate a Cytotoxic T cell? A known antigen bound to MHC-I, A Helper T cell bound to an antigen and MHC-II and macrophage, Any antigen on an MHC-II, whether new to the body or not
What is the function of a platelet plug? This slows blood flow by causing vasoconstriction, This forms a tough fibrous cap over the wound, This forms the first physical barrier to hemostasis, to be re
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