AP Biology Practice Exam 2 ❮ 299- The following table includes data from scan
samples conducted on a fictional mammal called
a googabear every 10 minutes over the course of
42 hours. At each scan, it was noted whether the
googabear was active or inactive. The percentage
of active (feeding, moving, engaging in social
behavior) and inactive (resting or sleeping) scans
recorded for each time period are shown in the
table. Describe the pattern of activity for the
googabear and discuss possible reasons for this
pattern.TIME 0600–1200 1200–1800 1800–2400 0000–0600 0600–1200 1200–1800 1800–2400
% active 83 75 22 5 93 89 15
% inactive 17 25 88 95 7 11 85
- In Earth’s early history, the evolution of photo-
synthesis in simple cells occurred before the evo-
lution of more complex cells. Briefly describe
the significance of photosynthesis being present
first. - What evidence supports the theory that chloro-
plasts and mitochondria are evolved from
prokaryotic cells?
8. You are asked to estimate if a certain species of
plant could live in a salt marsh. You collect the
following data:
- The overall Ψof the soil (Ψsoil):−2.2 MPa
- Solute concentration of plant cell contents:
0.08 M (assume i =1, and 12° C - Pressure potential of the plant cells: −1.2 MPa
•R =0.00831 liter MPa/mole K
Do you think the plant could grow in this envi-
ronment? Why or why not? Show your work.
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