BSC 2011 - Exam 3 | UPDATED Questions with 100%
Verified Answers
Q1: A. Leaves
A: Carpels are modified __________ that enclose the seeds
A. Leaves
B. Petals
C. Sepals
D. Gametophytes
Q2: B. Four carpels, each carpel with one seed cavity
A: This tomato that you bought in the supermarket and sliced at home has
A. One single carpel with 4 "seed cavities"
B. Four carpels, each carpel with one seed cavity
C. Unknown number of carpels
D. Carpels that are not fused but free
Q3: C. The ovary of a carpel
A: Most fruits that you buy in the supermarket will still have
A. A complete carpel
B. The style and the ovary of a carpel
C. The ovary of a carpel
D. The stigma of a carpel
Q4: angiosperms
A: Flowering plants that undergo double fertilization
Q5: carpel
A: A modified leaf that covers seeds, develops into fruit.
For example, legumes have one and tomatoes have two to three that fuse and make a
fruit. These structures are not free.
Through plant breeding, researchers have produced tomatoes with more than three of
these.
,Q6: whorls; sepals; petals; stamens; gynoecium
A: Flowers are organized in concentric circles called ______.
Outermost - ______
Second - ______
Third - _______ (androecium)
Innermost - _________
Q7: ovule
A: The gynoecium consists of one or more carpels and houses the female gametophyte
inside the _____ which is not a carpel, not a gametophyte, and has 2n and n cells.
Q8: pollen; anther; filament
A: The male gametophyte of angiosperms is called ______. Each stamen has an ______ and a
________ (stalk).
Q9: ovary; stigma; style
, A: A carpel has 3 major regions
_____ - swollen base containing ovule. Later develops into a fruit
______ - tip where pollen lands
_____ - neck or stalk
Q10: 4; 8; 7
A: Development of Embryo Sac, the female gametophyte of angiosperms
The single megaspore mother cell (2n) in the ovule undergoes meiosis, which produces _
megaspores (n). 3 disappear and 1 remains. The remaining megaspore divides (three
mitosis events) to produce _ haploid nuclei, which will later form _ cells.
Q11: Integuments
A: These become the seed coat and form the micropyle. (2n, and identical to mother tissue)
Q12: 8; 7; 2; Central/Polar Cell
A: The embryo sac = female gametophyte with _ nuclei in _ cells. _ nuclei migrate toward the
center and inside one cell, the ______/_____ ____. Therefore with two polar nuclei (cell is n+n).
Q13: egg; synergids; antipodals
A: ___ → 1 cell in group closest to micropyle (egg cell)
__________ → 2 flanking the egg cell
3 __________ → 3 cells at other end
Q14: microspore mother cells; 4; pollen grains; 1; 2
A: Pollen production occurs in the anthers
Less complex than female gametophyte formation
Diploid __________ ______ _____ undergo meiosis to produce _ haploid microspores. They
undergo mitosis resulting in ______ ______. They eventually will have _ vegetative or tube cell
and _ sperm/generative cells.
Q15: zygote, male gamete, sporophyte, triploid endosperm
A: Double Fertilization (three main steps)
Two generative sperm cells enter the cytoplasm of one of the synergids.
One sperm cell unites with the egg to form the diploid ______. This sperm cell is called the
____ ______. This will result in an embryo and a new __________. The other sperm unites with the
, two polar nuclei to form the ________ _________, which will provide a source of nutrients to the
embryo during seed.
Q16: E. None of the other options are correct
A: Which of the following are correct on Embryo Sacs
A. Gymnosperms
B. Hundreds of haploid cells
C. Tube cells
D. Two gametes
E. None of the other options are correct
Q17: A. Haploid
A: Megaspores are
A. Haploid
B. Produced inside the anthers
C. Made of haploid and diploid cells
D. Made of seven diploid cells
Q18: dermal; ground; vascular
A: There are 3 basic tissue types through root and shoot systems
______ - outer protective layer
______ - function in storage, photosynthesis, and secretion
________ - conducts fluids and dissolved substances
Tissues consist of one or more cell types
Q19: Parenchyma
A: (1/3 ground tissue cell type)
Function in storage, photosynthesis, and secretion
Most common type of plant cell
Verified Answers
Q1: A. Leaves
A: Carpels are modified __________ that enclose the seeds
A. Leaves
B. Petals
C. Sepals
D. Gametophytes
Q2: B. Four carpels, each carpel with one seed cavity
A: This tomato that you bought in the supermarket and sliced at home has
A. One single carpel with 4 "seed cavities"
B. Four carpels, each carpel with one seed cavity
C. Unknown number of carpels
D. Carpels that are not fused but free
Q3: C. The ovary of a carpel
A: Most fruits that you buy in the supermarket will still have
A. A complete carpel
B. The style and the ovary of a carpel
C. The ovary of a carpel
D. The stigma of a carpel
Q4: angiosperms
A: Flowering plants that undergo double fertilization
Q5: carpel
A: A modified leaf that covers seeds, develops into fruit.
For example, legumes have one and tomatoes have two to three that fuse and make a
fruit. These structures are not free.
Through plant breeding, researchers have produced tomatoes with more than three of
these.
,Q6: whorls; sepals; petals; stamens; gynoecium
A: Flowers are organized in concentric circles called ______.
Outermost - ______
Second - ______
Third - _______ (androecium)
Innermost - _________
Q7: ovule
A: The gynoecium consists of one or more carpels and houses the female gametophyte
inside the _____ which is not a carpel, not a gametophyte, and has 2n and n cells.
Q8: pollen; anther; filament
A: The male gametophyte of angiosperms is called ______. Each stamen has an ______ and a
________ (stalk).
Q9: ovary; stigma; style
, A: A carpel has 3 major regions
_____ - swollen base containing ovule. Later develops into a fruit
______ - tip where pollen lands
_____ - neck or stalk
Q10: 4; 8; 7
A: Development of Embryo Sac, the female gametophyte of angiosperms
The single megaspore mother cell (2n) in the ovule undergoes meiosis, which produces _
megaspores (n). 3 disappear and 1 remains. The remaining megaspore divides (three
mitosis events) to produce _ haploid nuclei, which will later form _ cells.
Q11: Integuments
A: These become the seed coat and form the micropyle. (2n, and identical to mother tissue)
Q12: 8; 7; 2; Central/Polar Cell
A: The embryo sac = female gametophyte with _ nuclei in _ cells. _ nuclei migrate toward the
center and inside one cell, the ______/_____ ____. Therefore with two polar nuclei (cell is n+n).
Q13: egg; synergids; antipodals
A: ___ → 1 cell in group closest to micropyle (egg cell)
__________ → 2 flanking the egg cell
3 __________ → 3 cells at other end
Q14: microspore mother cells; 4; pollen grains; 1; 2
A: Pollen production occurs in the anthers
Less complex than female gametophyte formation
Diploid __________ ______ _____ undergo meiosis to produce _ haploid microspores. They
undergo mitosis resulting in ______ ______. They eventually will have _ vegetative or tube cell
and _ sperm/generative cells.
Q15: zygote, male gamete, sporophyte, triploid endosperm
A: Double Fertilization (three main steps)
Two generative sperm cells enter the cytoplasm of one of the synergids.
One sperm cell unites with the egg to form the diploid ______. This sperm cell is called the
____ ______. This will result in an embryo and a new __________. The other sperm unites with the
, two polar nuclei to form the ________ _________, which will provide a source of nutrients to the
embryo during seed.
Q16: E. None of the other options are correct
A: Which of the following are correct on Embryo Sacs
A. Gymnosperms
B. Hundreds of haploid cells
C. Tube cells
D. Two gametes
E. None of the other options are correct
Q17: A. Haploid
A: Megaspores are
A. Haploid
B. Produced inside the anthers
C. Made of haploid and diploid cells
D. Made of seven diploid cells
Q18: dermal; ground; vascular
A: There are 3 basic tissue types through root and shoot systems
______ - outer protective layer
______ - function in storage, photosynthesis, and secretion
________ - conducts fluids and dissolved substances
Tissues consist of one or more cell types
Q19: Parenchyma
A: (1/3 ground tissue cell type)
Function in storage, photosynthesis, and secretion
Most common type of plant cell
