Exam 3: Pictures – Flashcards

What does the y-axis of this graph represent? a the time in days b the concentration of antigen Y in the blood c the antibody concentration in the blood d the concentration of antigen X in the blood

What does the blue line on this graph represent? a the time that has passed since first exposure to antigen X b the concentration of antibodies to antigen Y c the concentration of antibodies to antigen X d the concentration of antigen X in the blood

What does the first blue peak (around day 17) represent? a the highest concentration of antibodies that occurs after the first exposure to antigen Y b the highest concentration of antibodies that occurs after the first exposure to antigen X c the highest concentration of antibodies that occurs after the second exposure to antigen Y d the highest concentration of antibodies that occurs after the second exposure to antigen X

What does the second blue peak (around day 40) represent? a the peak of the secondary immune response to antigen X b the peak of the primary immune response to antigen X c the peak of the secondary immune response to antigen Y d the peak of the primary immune response to antigen Y

Is this statement supported or not supported by the graph? The primary immune response takes about 28 days to reach its peak. a supported b not supported c cannot be determined from the graph

Is this statement supported or not supported by the graph? The secondary immune response is stronger than the primary immune response. a supported b not supported c cannot be determined from the graph

Is this statement supported or not supported by the graph? A third exposure to antigen X will produce an even stronger immune response than the second exposure did. a supported b not supported c cannot be determined from the graph

Is this statement supported or not supported by the graph? The primary immune response to antigen X occurred just as fast as the secondary immune response to antigen X. a supported b not supported c cannot be determined from the graph

Which of these binds to receptor molecules on the host cell membrane? A B C D E

Which of these is reverse transcriptase?

Which of these is the viral genome?

https://session.masteringbiology.com/myct/itemView?assignmentProblemID=73201102# What enzyme is responsible for the process seen here? a RNA polymerase b reverse transcriptase c DNA ligase d endonuclease e DNA polymerase

A musical chord consists of several notes, each formed by a sound wave of a different frequency. The three graphs show the patterns of vibration along the basilar membrane for three different frequencies, high (top), medium (middle), and low (bottom). The higher the frequency, the closer the vibration to the oval window. If a chord had notes with frequencies of 100, 1,000, and 6,000 Hz, what would happen to the basilar membrane? a It would vibrate with a peak at A only. b It would vibrate with a peak at B only. c It would vibrate with a peak at C only. d It would vibrate at multiple positions, with peaks at A, B, and C. How would this result in a listener hearing a chord? a Sensory neurons at each position in the basilar membrane transmit action potentials to the brain, where the perception of a chord is generated. b The listener receives alternating signals representing each of the three notes, but these cycle very quickly so that the perception is of a single chord. c Sensory neurons at each position in the basilar membrane transmit action potentials that are combined in the auditory nerve, creating a signal representing the chord that is transmitted to the brain. d Information on the three peaks is combined at the basilar membrane's organizing center, and action potentials representing this combined chord are transmitted to the brain.

c

a

c

c

b