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Exam (elaborations)

BIO 230-EXAM 3 QUESTIONS WITH ACTUAL ANSWERS

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BIO 230-EXAM 3 QUESTIONS WITH ACTUAL ANSWERS

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3' end of each primer


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face towards each other




Main nitrogen reservoir


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the atmosphere




Phosphorylation cascade

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has signal amplification meaning 1 receptor on the surface of the cell may
activate many molecules




Genetically modified organisms


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organisms that contain a gene from a specific species




Is DNA positively or negatively charged?


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negatively




Bacteria & Eukarya


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fatty acid phospholipids w/ all lipid bilayers




Bacteria cell wall


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, contain D-amino acids (most living things only have L amino acids)




IP3


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a second messenger phospholipid in the membrane that's an example of
calcium on the ER; when IP3 binds to an ion channel the ligand opens and
finds its way to the cell's main calcium storage and releases it to the
cytoplasm




Cyanobacteria


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the first type of bacteria to do photosynthesis to allow atmosphere to have
oxygen




Ligand-gated ion channel


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gives ions a way to cross the cell membrane with a protein channel that
acts as a receptor




Gene therapy

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genetic testing finds a delective gene causing disease




Second step in RTKs


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P-tyrosine acts as docks for other relay proteins




Anoxic


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little atomspheric oxygen; NO AERBOIC RESPIRATION IN THOSE
BACTERIA




Synaptic signlaing


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involves nerve cells in a synapse; SIGNALING MOLECULE IS
NEUROTRANSMITTERS




Ligand

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