3/16/12 Quiz Prep (Moss & Fern Life Cycle)
To be taken in conjunction with the diagrams presented on watsthefaxnumber @ webs.
Questions and Answers
- 1.
1. The meiosis of animals involves the creation of haploid cells (otherwise known as gametes -- that's your egg and sperm) which fuse during fertilization; this forms a zygote. The plants, however, have a more complex system, which is known as the ________________ life cycle.
Explanation
The correct answer is "alternation of generations" or "the alternation of generations life cycle". This term refers to the life cycle of plants, where there is a alternation between a haploid gametophyte generation and a diploid sporophyte generation. This cycle involves the production of gametes through meiosis and their fusion during fertilization to form a zygote, which then grows into a sporophyte. The sporophyte produces spores through meiosis, which develop into gametophytes, and the cycle continues.Rate this question:
- 2.
In diagram 1, label #1a. (Hint: This is the action, meiosis, mitosis, or fertilization, that the Sporophyte goes through)
- A.
Meiosis
- B.
Mitosis
- C.
Fertilization
Correct Answer
A. MeiosisExplanation
Label #1a in diagram 1 represents the process of meiosis. Meiosis is a type of cell division that occurs in the reproductive cells, such as gametes, to produce cells with half the number of chromosomes as the parent cell. This process is important for sexual reproduction and the formation of genetically diverse offspring. Therefore, meiosis is the correct answer for label #1a in diagram 1.Rate this question:
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- 3.
In diagram 1, is the Sporophyte (#1) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
B. DiploidExplanation
In diagram 1, the Sporophyte (#1) is diploid. A diploid organism has two sets of chromosomes, one inherited from each parent. This means that the cells of the Sporophyte have two copies of each chromosome. In contrast, haploid organisms have only one set of chromosomes. Therefore, the Sporophyte in diagram 1 is diploid.Rate this question:
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- 4.
In diagram 1, label #2. (Hint: This is the structure(s) the Sporophyte creates/forms after Meiosis)
Correct Answer
spores
sporeExplanation
The correct answer is "spores, spore". In diagram 1, label #2 represents the structure(s) that the Sporophyte creates/forms after Meiosis. These structures are known as spores. Spores are reproductive cells that are produced by plants, fungi, and some protists. They are capable of developing into new individuals without fusing with another reproductive cell. In this context, the term "spore" refers to a single unit of the reproductive cell, while "spores" refers to multiple units.Rate this question:
- 5.
In diagram 1, are the spores (#2) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
A. HaploidExplanation
In diagram 1, the spores (#2) are haploid. This means that they contain a single set of chromosomes, which is the characteristic of haploid cells. Haploid cells are formed through a process called meiosis, where the parent cell undergoes two rounds of cell division to produce four haploid cells. These haploid spores can then develop into gametes or fuse with other haploid cells to form a diploid organism. Therefore, based on the information provided, it can be concluded that the spores in diagram 1 are haploid.Rate this question:
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- 6.
In diagram 1, label 2a. (Hint: This is the action, meiosis, mitosis, or fertilization, that the Spores go through)
- A.
Meiosis
- B.
Mitosis
- C.
Fertilization
Correct Answer
B. MitosisExplanation
The correct answer is mitosis because in diagram 1, label 2a represents a process where the spores undergo cell division to produce two identical daughter cells. This is a characteristic feature of mitosis, where a single cell divides into two identical cells. Meiosis, on the other hand, is a type of cell division that results in the formation of gametes with half the number of chromosomes. Fertilization is the process of fusion of gametes to form a zygote. However, none of these processes are depicted in diagram 1, hence the correct answer is mitosis.Rate this question:
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- 7.
In diagram 1, label #3. (Hint: This is the structure the spores create/form after Mitosis)
Correct Answer
gametophyteExplanation
In diagram 1, label #3 represents the gametophyte. The hint suggests that this structure is formed after mitosis, which is a process of cell division. In the life cycle of plants, the gametophyte is the stage where gametes (reproductive cells) are produced. Therefore, the correct answer is gametophyte.Rate this question:
- 8.
In diagram 1, is the Gametophyte (#3) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
A. HaploidExplanation
In diagram 1, the Gametophyte (#3) is haploid. This means that it has a single set of chromosomes, which is the characteristic of haploid cells. Haploid cells contain half the number of chromosomes compared to diploid cells.Rate this question:
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- 9.
In diagram 1, label #3a. (Hint: This is the action, meiosis, mitosis, or fertilization, that the Gametophyte goes through)
- A.
Meiosis
- B.
Mitosis
- C.
Fertilization
Correct Answer
B. MitosisExplanation
The correct answer is mitosis because mitosis is the process by which a single cell divides into two identical daughter cells. In the context of the question, label #3a refers to a specific action that the Gametophyte goes through, and mitosis is the most appropriate process among the given options. Meiosis is a different type of cell division that involves the formation of gametes, while fertilization is the fusion of gametes to form a zygote.Rate this question:
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- 10.
In diagram 1, label #4. (Hint: This is/are the structure(s) the Gametophyte creates/forms after Mitosis)
Correct Answer
GametesExplanation
In diagram 1, label #4 refers to the structure(s) that the Gametophyte creates/forms after Mitosis. The term "Gametes" refers to the reproductive cells, such as sperm and egg, which are produced by the Gametophyte through the process of mitosis. These gametes are essential for sexual reproduction and the formation of a new organism.Rate this question:
- 11.
In diagram 1, are the Gametes (#4) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
A. HaploidExplanation
In diagram 1, the gametes (#4) are haploid. Haploid cells contain only one set of chromosomes, which means they have half the number of chromosomes compared to diploid cells. Gametes are reproductive cells, such as sperm and egg cells, which are involved in sexual reproduction. These cells need to be haploid so that when they combine during fertilization, the resulting zygote will have the correct number of chromosomes. Therefore, the correct answer is haploid.Rate this question:
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- 12.
In diagram 1, label #4b. (Hint: This is the male gamete)
Correct Answer
spermExplanation
In diagram 1, label #4b represents the male gamete, which is commonly known as sperm. Sperm is the reproductive cell produced by males and is responsible for fertilizing the female egg during sexual reproduction. It is a small, motile cell with a tail that allows it to swim towards the egg for fertilization. Therefore, the correct answer for label #4b in diagram 1 is sperm.Rate this question:
- 13.
In diagram 1, label #4c. (Hint: This is the action, meiosis, mitosis, or fertilization, that the egg and sperm through)
- A.
Meiosis
- B.
Mitosis
- C.
Fertilization
Correct Answer
C. FertilizationExplanation
The correct answer is fertilization. Fertilization is the process in which the sperm and egg come together to form a zygote, which eventually develops into an embryo. This process involves the fusion of the genetic material from both the sperm and the egg, resulting in the formation of a new individual with a unique combination of genes. Meiosis and mitosis are different processes involved in cell division, but they do not involve the fusion of sperm and egg.Rate this question:
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- 14.
In diagram 1, label #5. (Hint: This is the structure the egg and sperm create/form after Fertilization)
Correct Answer
zygoteExplanation
The correct answer is zygote. After fertilization, the egg and sperm combine to form a zygote. The zygote is the initial stage of development and contains all the genetic information necessary for the formation of a new organism. It undergoes cell division and differentiation to eventually develop into an embryo.Rate this question:
- 15.
In diagram 1, is the Zygote (#5) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
B. DiploidExplanation
In diagram 1, the Zygote (#5) is diploid. A diploid cell contains two complete sets of chromosomes, one set from each parent. The Zygote is formed by the fusion of a haploid sperm cell and a haploid egg cell during fertilization. Therefore, it contains the full complement of chromosomes (46 in humans) and is diploid.Rate this question:
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- 16.
In diagram 1, label #5a. (Hint: This is the action, meiosis, mitosis, or fertilization, that the Zygote goes through)
- A.
Meiosis
- B.
Mitosis
- C.
Fertilization
Correct Answer
B. MitosisExplanation
The correct answer is mitosis. Mitosis is the process by which a cell divides into two identical daughter cells. In the context of the question, label #5a refers to the action that the Zygote goes through, and this action is mitosis. Meiosis is a different type of cell division that occurs in the formation of gametes, and fertilization is the process of fusion of gametes to form a zygote. However, in this case, the correct answer is mitosis.Rate this question:
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- 17.
In diagram 1, label #6. (Hint: This is the structure the Zygote creates/forms after Mitosis)
Correct Answer
SporophyteExplanation
In diagram 1, label #6 represents the structure that is formed after mitosis by the zygote. This structure is called the sporophyte. The sporophyte is the diploid phase in the life cycle of plants, where it produces spores through meiosis. This is in contrast to the gametophyte phase, which is haploid and produces gametes. The sporophyte is responsible for the production of spores, which eventually develop into new individuals, continuing the life cycle of the plant.Rate this question:
- 18.
In diagram 1, is the Sporophyte (#6) haploid or diploid?
- A.
Haploid
- B.
Diploid
Correct Answer
B. DiploidExplanation
In diagram 1, the Sporophyte (#6) is diploid. This means that it has two sets of chromosomes, one from each parent. In contrast, haploid organisms have only one set of chromosomes.Rate this question:
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