BIO 1108 EXAM QUESTIONS AND
ANSWERS A+ GRADED
For the "light" reaction to occur, an electron donor (____) and an ultimate
acceptor (______) are needed.
A) NADPH; water
B) water; ATP
C) water; NADPH
D) ATP; NADPH
E) water; NADP+
E
Which molecule is oxidized in the photosynthetic reaction?
A) CO2
B) H2O
C) C6H12O6
D) Sunlight
B
In terms of the evolution of photosynthesis, which process happened first?
A) endosymbiosis
B) mitochondrial membrane structure
C) chloroplast membrane structure
D) horizontal gene transfer
A
What is the most abundant protein on Earth?
A) Rubisco
B) CO2
C) 3-PGA
D) NADPH
A
What is the inital carbon input in the Calvin cycle?
A) C6H12O6
B) Triose phosphate
C) CO2
D) Rubisco
C
A high school student is carrying out a science project. She plants alfalfa seeds,
and encloses an area planted with one set of alfalfa seeds within a box covered in
red cellophane (which reflects light of red wavelengths). She leaves another set
of planted alfalfa seeds uncovered. What do you expect she'll find in these two
alfalfa populations when her science project is over?
A) germination rate will be higher in the uncovered seed set
B) the germination rate will be lower in the uncovered seed set
C) the germination rate will be higher in the uncovered seed set
D) The uncovered seed set will not germinate while the covered set will
, C
Which of the following statements is true regarding the fruits produced by
angiosperms?
A) fruits are typically derived from the seed coat
B) fruits cannot ripen once exposed to ethylene
C) fruits are typically derived from the wall of the ovary
D) fruits ripen in response to far red light
C
Which of the following statements is true of the seeds of both gymnosperms and
angiosperms?
A) seeds fro both plants contain a triploid (3n) endosperm
B) Seeds from both plants contain a diploid (2n) embryo
C) seeds from both plants contain a haploid (1n) seed coat
D) seeds from both plants contain a haploid (1n) male gametophyte
B
In ferns, both the gametophyte and sporophyte are physiologically capable of
surviving on their own. What is the most likely reason that vascular tissues are
present only in the sporophyte generation?
A) Vascular tissues are incompatible with desiccation tolerance needed for
gametophytes to survive
B) There is no advantage for the gametophyte to grow tall because fern
gametophytes typically produce only male or female gametes at any one time.
C) There is no advantage for the gametophyte to grow tall because gametes must
be produced near the ground where the water needed for their free-swimming
sperm is most likely to be found.
D) Haploid organisms are incapable of developing vascular tissues such as xylem
and phloem.
C
Why is dispersal an important part of reproduction?
A) It allows for escape from pathogens and parasites
B) It reduces competition for resources with closed related individuals
C) All of the above are correct
D) It allows genotypes to colonize larger areas
E) None of these options are correct
C
In your vegetable garden you are growing yams. Yams are modified root tissue
from the plant. What is the function of the yam for the plant?
A) It stores water for the plant in times of drought
B) It stores sugar for the plants
C) It provides greater surfaces area for water absorption
D) It provides greater surface area for the growth of additional root meristems
B
You purchase two identical houseplants and place them side by side on your
windowsill. You water both plants equally. One plant, plant a, you leave alone. On
the other plant, plant b, you pinch off the top of the growing stem, effectively
removing the apical meristem. Which of the following would you expect to occur?
ANSWERS A+ GRADED
For the "light" reaction to occur, an electron donor (____) and an ultimate
acceptor (______) are needed.
A) NADPH; water
B) water; ATP
C) water; NADPH
D) ATP; NADPH
E) water; NADP+
E
Which molecule is oxidized in the photosynthetic reaction?
A) CO2
B) H2O
C) C6H12O6
D) Sunlight
B
In terms of the evolution of photosynthesis, which process happened first?
A) endosymbiosis
B) mitochondrial membrane structure
C) chloroplast membrane structure
D) horizontal gene transfer
A
What is the most abundant protein on Earth?
A) Rubisco
B) CO2
C) 3-PGA
D) NADPH
A
What is the inital carbon input in the Calvin cycle?
A) C6H12O6
B) Triose phosphate
C) CO2
D) Rubisco
C
A high school student is carrying out a science project. She plants alfalfa seeds,
and encloses an area planted with one set of alfalfa seeds within a box covered in
red cellophane (which reflects light of red wavelengths). She leaves another set
of planted alfalfa seeds uncovered. What do you expect she'll find in these two
alfalfa populations when her science project is over?
A) germination rate will be higher in the uncovered seed set
B) the germination rate will be lower in the uncovered seed set
C) the germination rate will be higher in the uncovered seed set
D) The uncovered seed set will not germinate while the covered set will
, C
Which of the following statements is true regarding the fruits produced by
angiosperms?
A) fruits are typically derived from the seed coat
B) fruits cannot ripen once exposed to ethylene
C) fruits are typically derived from the wall of the ovary
D) fruits ripen in response to far red light
C
Which of the following statements is true of the seeds of both gymnosperms and
angiosperms?
A) seeds fro both plants contain a triploid (3n) endosperm
B) Seeds from both plants contain a diploid (2n) embryo
C) seeds from both plants contain a haploid (1n) seed coat
D) seeds from both plants contain a haploid (1n) male gametophyte
B
In ferns, both the gametophyte and sporophyte are physiologically capable of
surviving on their own. What is the most likely reason that vascular tissues are
present only in the sporophyte generation?
A) Vascular tissues are incompatible with desiccation tolerance needed for
gametophytes to survive
B) There is no advantage for the gametophyte to grow tall because fern
gametophytes typically produce only male or female gametes at any one time.
C) There is no advantage for the gametophyte to grow tall because gametes must
be produced near the ground where the water needed for their free-swimming
sperm is most likely to be found.
D) Haploid organisms are incapable of developing vascular tissues such as xylem
and phloem.
C
Why is dispersal an important part of reproduction?
A) It allows for escape from pathogens and parasites
B) It reduces competition for resources with closed related individuals
C) All of the above are correct
D) It allows genotypes to colonize larger areas
E) None of these options are correct
C
In your vegetable garden you are growing yams. Yams are modified root tissue
from the plant. What is the function of the yam for the plant?
A) It stores water for the plant in times of drought
B) It stores sugar for the plants
C) It provides greater surfaces area for water absorption
D) It provides greater surface area for the growth of additional root meristems
B
You purchase two identical houseplants and place them side by side on your
windowsill. You water both plants equally. One plant, plant a, you leave alone. On
the other plant, plant b, you pinch off the top of the growing stem, effectively
removing the apical meristem. Which of the following would you expect to occur?
