Survey of Natural Sciences
PracticeQs
Biology:
1. The P680
chlorophyll A molecule of photosystem II:
A. oxidizes glucose.
B. oxidizes water.
C. best absorbs light with a wavelength of 700nm.
D. provides electrons that reduce NADH+.
E. more than one of the above.
2. Normal wings are dominant to curly wings in certain fruit
flies. To determine the genotype of a fly with normal wings, the
following test cross should be conducted:
A. cross with fly with normal wings.
B. cross with fly with normal wings with parents with normal
wings.
C. cross with fly with normal wings with a parent with curly
wings.
D. cross with fly with curly wings.
E. cross with any fly.
3. Shortly after gastrulation, a teratogen affects the
development of the endoderm. You will most likely see a deformity
in the:
A. lens of the eye.
B. gonads.
C. nervous system.
D. bladder lining.
E. connective tissue.
General Chemistry:
4. Which of the following pairs gives the bond with the least
ionic character?
A. Cs and F
B. O and H
C. C and C
D. C and Cl
E. C and N
5. If one mole of a gas originally at STP is placed into a
container where the pressure is then halved and the absolute
temperature (measured in K) is doubled, what will be the new
volume in liters?
A. 11.2
B. 22.4
C. 33.6
D. 44.8
E. 89.6
6. At 0 degrees C, a mixture of neon and argon gases occupies
a volume of 44.8 liters with a total pressure of 1 atm. If the
mixture contains 1.5 moles of argon, how many moles of neon are
present?
A. 3.0
B. 1.5
C. 1.0
D. 0.75
E. 0.5
Organic Chemistry:
7. Which of the following has the lowest boiling point?
A. n-hexane
B. 2-methylheptane
C. 2-methylhexane
D. 2-methylpentane
E. 2-hexanol
8. Alcohols have higher boiling points than the analogous
ethers and hydrocarbons because
A. the oxygen atoms in alcohols have shorter bond
lengths.
B. hydrogen bonding is present in alcohols.
C. alcohols are more acidic than the analogous ethers or
hydrocarbons.
D. All of the above.
9. Which of the following are considered terminal functional
groups?
A. Aldehydes
B. Ketones
C. Carboxylic acids
D. Both A and C
