Name _________________________
Ch 7, 13 homework- 1 point each unless otherwise stated
Due Wed August 4, 2010
1. In most green plants, chloroplasts are
A) concentrated in a zone of leaf tissue called the mesophyll.
B) concentrated in the stomata.
C) concentrated in a portion of the leaf called the stroma.
D) found throughout the leaf tissue.
E) found throughout the plant.
2. The light reactions occur in the ________, while the Calvin cycle occurs in the ________. A)
stroma . . . thylakoid membranes
B) stroma . . . nucleus
C) cytoplasm . . . stroma
D) cytoplasm . . . thylakoid membrane
E) thylakoid membranes . . . stroma
3. Outline the component parts of the chloroplast. Where do the photosystems reside? Where is
the Calvin cycle located?
4. What are CAM and C4 plants? How are they adapted to their environment (i.e. how is their
process of photosynthesis different from that of a regular plant)?
5. Outline how light reactions work. Be sure to include input and outputs as well as what is
happening. (2 points)
6. Outline the calvin cycle. Be sure to include inputs and outputs and intermediates. (2 points)
7. CO2 enters and O2 escapes from a leaf via
A) stomata.
B) thylakoids.
C) grana.
D) stroma.
E) central vacuoles.
8. The most important role of pigments in photosynthesis is to _____.
a. Capture light
b. Screen out harmful UV rays
c. store energy in glucose molecules
d. release energy from glucose molecules
e. store energy in ATP
Ch 13
1. What are homologous structures? Give an example of a pair of homologous structures
2. A population is
a.
a group of individuals of the same species living in the same place at the same time.
b.
all individuals of a species, regardless of location or time period in which they live.
c.
a group of individuals of different species living in the same place at the same time.
d.
a group of individuals of a species plus all of the other species with which they interact.
e.
a group of species that share a common characteristic.
3. What were Darwin’s three key observations used to form his theory of evolution
4. Evolution acts on the ______________________ but affects the ____________________.
h1
5. What 5 conditions must a population satisfy to remain in Hardy-Weinberg Equlibrium?
6. Genetic drift resulting from a disaster that drastically reduces population size is called (1 point)
A)
natural selection.
B)
gene flow.
C)
the bottleneck effect.
D)
nonrandom mating.
E)
the founder effect.
7. Frequency-dependent selection, as seen in the case of the scale-eating fish in Lake Tanganyika,
tends to
a.
eliminate rare alleles and favor whichever allele is initially most frequent.
b.
maintain two phenotypes in a dynamic equilibrium in a population.
c.
d.
e.
produce random changes in allele frequencies.
lead to heterozygote advantage.
stimulate new mutations.
8. What is neutral variation?
9. What are the three types of selection than can alter variation within a population? How does
each of them work? (2 points)