Bio 181 exam 4 - Study guides, Class notes & Summaries

BIO 181 ASU EXAM 3 TEST QUESTIONS WITH REVISED AND UPDATED ANSWERS T or F: Acetylcholinesterase breaks acetylcholine into muscarinic acid - Answer-false In the motor end plate, the event that is the immediate trigger for exocytosis is - Answer-calcium ions T or F: Fast Neurons as described in lecture require cytoplasmic signal transduction to open an ion channel. - Answer-False T or F: Only pre-synaptic neurons are coated with myelin. - Answer-False T or F: When the presynaptic cel...

BIO 181 ASU LATEST 2024 FORM A REAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) A GRADE How is DNA helix opened? - Answer-Helicase: protein that breaks hydrogen bonds in DNA and separates into two strands What is single-strand DNA-binding proteins? - Answer-SSBPs prevent the DNA from closing again What protein prevents tension of DNA once it is being undone? - Answer-Topoisomerase cuts and restarts the unbinding of DNA What is the difference between leading strand and lagging...

BIO 181 ASU Exam Questions And Correct Answers List the 4 types of glial cells and list a phrase to describe their function. - Answer -1. Schwann cells wrap around the axon of a cell in the PNS, while providing electrical insulation. 2. Oligodendrocytes do the same thing as Schwann cells but they do it in the CNS. 3. Astrocytes protect the brain from toxic chemicals. 4. Microgilia protect the brain. T/F When the presynaptic cells contacts a muscle cell, the synapse area is called a moto...

ASU BIO 181 Exam 3 Exam Questions 2024 Marking Scheme Excitatory synapses make the post-synaptic cell less likely to fire. - Answer -False The neural tissues are: - Answer -Spinal cord, sensory neurons, and brain How do the glial cells (i.e., myelin sheath) speed up the firing of neurons? - Answer -The cell wraps extensions of a fatty insulating substance (myelin) around the axons of neurons. The action potential is: - Answer -A result of the movement of ions. Receptors are made f...

ASU BIO 181 Exam 3 Questions All 100% Correctly Answered Excitatory synapses make the post-synaptic cell less likely to fire. - Answer -False The neural tissues are: - Answer -Spinal cord, sensory neurons, and brain How do the glial cells (i.e., myelin sheath) speed up the firing of neurons? - Answer -The cell wraps extensions of a fatty insulating substance (myelin) around the axons of neurons. The action potential is: - Answer -A result of the movement of ions. Receptors are m...

The tryptophan operon is a repressible operon that is: - ANSWER-Turned off whenever tryptophan is added to the growth medium. The lactose operon is likely to be transcribed when: - ANSWER-The cyclic AMP and lactose levels are both high within the cell. For a repressible operon to be transcribed, which of the following must occur? - ANSWER-RNA polymerase must bind to the promoter, and the repressor must be inactive. Which of the following, when taken up by the cell, binds to the represso...

BIO 181 (Capco ASU) Exam 3 (Final Exam) 2024 T/F Excitatory synapses cause hyperpolarization of post-synaptic cells. - answerFalse The resting potential of neurons is: - answer-60 mv (The answer is not on this list.) T/F The autonomic nervous system contains the sympathetic and the parasympathetic nervous system. - answerTrue In the motor end plate, the event that is the immediate trigger for exocytosis is: - answerCalcium Ions Draw an action potential in the axon of a neuron and indicat...

BIO 181 GRAND CANYON UNIVERSITY EXAM 3 QUESTIONS AND ANSWERS NEW UPDATE 2024 1. A frameshift mutation could result from E) either an inser- tion or a deletion of a base. 2. Which of the following does not occur in prokaryotic eukaryotic gene expression, but does in eukaryotic gene expression? 3. Which of the following helps to hold the DNA strands apart while they are being replicated? 4. Accuracy in the translation of mRNA into the primary structure of a polypeptide depends on spe...

Bio 181 ASU Exam 1 Questions And Answers 100% Verified. Primitive prokaryote cell evolved into_________ - correct answer. pro-eukaryotic cell Eukaryote - correct answer. single celled organism Paramecium - correct answer. distant ancestor of our cells, limited by # of biomolecular machines within itself What does a paramecium use cilia for? - correct answer. to move What was the precursor to our kidneys? - correct answer. contractile vacuole...

BIO 181 (Capco ASU) Final Exam questions well answered and verified T/F Excitatory synapses cause hyperpolarization of post-synaptic cells. - Correct Answers False The resting potential of neurons is: - Correct Answers -60 mv (The answer is not on this list.) T/F The autonomic nervous system contains the sympathetic and the parasympathetic nervous system. - Correct Answers True In the motor end plate, the event that is the immediate trigger for exocytosis is: - Correct Answers Calcium ...