Bio 242 exam 2 - Study guides, Class notes & Summaries

BIO 242 Exam 2 UPGRADE A+ Voltage gated Calcium channels tend to be located where in the neuron? - soma - axon - axon terminal - CORRECT ANSWER-axon terminal When a cell depolarizes it becomes more... - CORRECT ANSWER-positive graded potential is initiated by a stimulus and results in a __________________ change in membrane potential. - small - large - no - CORRECT ANSWER-small During relative refractory period will an action potential be triggered by any stimulus? - CORRECT ANSWER-...

BIO 242 Lecture Exam 1 Questions and Answers 100% Pass What are the primary functions of blood in the body? Blood carries oxygen from the lungs to cell tissues and picks up carbon dioxide from tissues to transport it back to the lungs. How many oxygen molecules can a single red blood cell carry? Over 1 billion What percentage of body weight does blood account for? 8% What are the normal counts of white blood cells and red blood cells in a cubic millimeter of blood? ...

BIO 242 EXAM 2 PRACTICE QUESTIONS CH 4 The resting potential is typically - CORRECT ANSWER--70mV Membrane channels are formed by ______ that span the thickness of the membrane - CORRECT ANSWER-Proteins _____ carry signals toward the cell body, while ____ carry action potentials away from the cell body - CORRECT ANSWER-Dendrites; Axons The first portion of the axon plus the region of the cell body from which the axon leaves is known as the - CORRECT ANSWER-Axon hillock Contains nucleu...

BIO 242 - EXAM 2 QUESTIONS AND ANSWERS

BIO 242 Exam 4 TopHat and Review Questions and Answers 100% Pass What fundamental characteristic defines innate immunity? It is the primary and broadest mechanism of defense against pathogens. What are typical components of inflammatory responses? Increased activity of phagocytes within the inflamed area is commonly observed. Where do lymphocytes undergo maturation? Lymphocytes mature exclusively in the bone marrow and thymus. Why is developing self-tolerance crucial? Develo...

BIO 242 Exam 3 Practice Questions and Answers Updated 2024/2025 Graded A+/. The blood found in the pulmonary vein of a mammal is: oxygenated 3. Acquiring immunity from a primary immune response to an initial infection is an example of: naturally acquired active immunity 4. On a windy day, the wind carries off additional heat energy from a dog, compared to the heat energy lost on a still day. Which method of heat loss/gain is primarily responsible for heat loss? Convection 5. To which ...

BIO 242 Exam 3 Practice Questions and Answers | Graded A.The interstitial fluids of humans have essentially the same composition of water and dissolved materials as: Lymph 2. The blood found in the pulmonary vein of a mammal is: oxygenated 3. Acquiring immunity from a primary immune response to an initial infection is an example of: naturally acquired active immunity 4. On a windy day, the wind carries off additional heat energy from a dog, compared to the heat energy lost on a still...

BIO 242 Exam 3 Practice Questions and Answers Latest 2024/2025 (Graded A+) The interstitial fluids of humans have essentially the same composition of water and dissolved materials as: Lymph 2. The blood found in the pulmonary vein of a mammal is: oxygenated 3. Acquiring immunity from a primary immune response to an initial infection is an example of: naturally acquired active immunity 4. On a windy day, the wind carries off additional heat energy from a dog, compared to the heat energ...

BIO 242 Final Exam Questions and Answers All Correct chromosomes - ANSWER autosome (22 pairs) sex chromosomes (1 pair) autosomes - ANSWER -22 pairs -each member of a pair carries the same complement of genes sex chromosomes - ANSWER -2 forms = X and Y -not all genes are paired -X in both male and females --> has essential genes -Y in only males --> essential genes for developing into male XX = female XY = male mitosis - ANSWER ...