lOMoARcPSD|11837912
Exam 2013, questions and answers
Biology I - Cells, Molecular Biology and Genetics (York University)
, lOMoARcPSD|118379 BIOL%1000%–%Fall%2013%–%YORK%UNIVERSITY%
BIOL%1000%–%TEST%1%QUESTIONS%AND%ANSWERS.%
Answers%are%highlighted%in%yellow%
(Note:%Question%and%Answer%Order%Varied%with%Test%Version)%
1. VERSION QUESTION
2. Light activates photoreceptors in an organism. The organism reacts by moving
away from the light. Is this an example of vision?
A. Yes
B. No
C. Unable to determine, need more information.
3. Which of the following is correct about a biological process that is under the
control of a circadian clock/rhythm?
A. Proteins associated with the circadian nucleus control cycling of the
biological process.
B. The biological process oscillates with a period alternating between 12 and
24 hours.
C. Circadian cycling of a biological process rarely follows the natural day and
night light cycle.
D. The oscillating nature of the biological process will continue even if the
organism is placed in complete darkness for an extended period of time.
4. A photon of light causes cis-retinal to change to trans-retinal within the
camera eye of an organism. This organism however does not detect the light
(I.E. does not “see” the light). What may have caused this?
A. Trans-retinal is not the active conformation (shape).
B. The horizontal, bipolar, and ganglion cells blocked the light from
the photoreceptors.
C. The cornea and lens were damaged, preventing light from being focused on
the photoreceptors.
D. The associated opsin protein did not undergo a conformational (shape) change.
5. The Theory of Evolution AND Cell Theory BOTH support which of the
following.
A. That archaea are more related to eukarya than bacteria.
B. That variation must exist between individual organisms/cells of the same species.
C. That competition must exist between bacteria, archaea and eukaryotic organisms.
D. That prokaryotic and eukarotic organisms have the same common ancestor.
!
! Page%1%of%5
Exam 2013, questions and answers
Biology I - Cells, Molecular Biology and Genetics (York University)
, lOMoARcPSD|118379 BIOL%1000%–%Fall%2013%–%YORK%UNIVERSITY%
BIOL%1000%–%TEST%1%QUESTIONS%AND%ANSWERS.%
Answers%are%highlighted%in%yellow%
(Note:%Question%and%Answer%Order%Varied%with%Test%Version)%
1. VERSION QUESTION
2. Light activates photoreceptors in an organism. The organism reacts by moving
away from the light. Is this an example of vision?
A. Yes
B. No
C. Unable to determine, need more information.
3. Which of the following is correct about a biological process that is under the
control of a circadian clock/rhythm?
A. Proteins associated with the circadian nucleus control cycling of the
biological process.
B. The biological process oscillates with a period alternating between 12 and
24 hours.
C. Circadian cycling of a biological process rarely follows the natural day and
night light cycle.
D. The oscillating nature of the biological process will continue even if the
organism is placed in complete darkness for an extended period of time.
4. A photon of light causes cis-retinal to change to trans-retinal within the
camera eye of an organism. This organism however does not detect the light
(I.E. does not “see” the light). What may have caused this?
A. Trans-retinal is not the active conformation (shape).
B. The horizontal, bipolar, and ganglion cells blocked the light from
the photoreceptors.
C. The cornea and lens were damaged, preventing light from being focused on
the photoreceptors.
D. The associated opsin protein did not undergo a conformational (shape) change.
5. The Theory of Evolution AND Cell Theory BOTH support which of the
following.
A. That archaea are more related to eukarya than bacteria.
B. That variation must exist between individual organisms/cells of the same species.
C. That competition must exist between bacteria, archaea and eukaryotic organisms.
D. That prokaryotic and eukarotic organisms have the same common ancestor.
!
! Page%1%of%5
