Mitosis Quiz - Davidson
Mitosis
- 1.
When viewing slides of unknown specimens with a microscope, a student records the following information:Shape - rectangularChlorophyll present - yesCentrioles present - nocell wall - yesAccording to the chart, what type cell is on slide 1?
- A.
A. Animal
- B.
B. Whitefish
- C.
C.Fungi
- D.
D. Plant
Correct Answer
D. D. PlantExplanation
Based on the information provided, the cell on slide 1 can be identified as a plant cell. The presence of chlorophyll and cell wall are characteristic features of plant cells. Additionally, the rectangular shape is also commonly observed in plant cells. Therefore, the correct answer is D. Plant.Rate this question:
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- 2.
Which of the following organelles is found in animal cells but NOT in plant cells?
- A.
A. chloroplasts
- B.
B. mitochondria
- C.
C. centrioles
- D.
D. ribosomes
Correct Answer
C. C. centriolesExplanation
Centrioles are cylindrical structures that play a crucial role in cell division. They are found in animal cells but are absent in plant cells. Centrioles are involved in the formation of spindle fibers during cell division, which help in the separation of chromosomes. Plant cells do not require centrioles for cell division as they have a different mechanism for organizing their chromosomes. Therefore, the correct answer is C. centrioles.Rate this question:
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- 3.
Which of the following statements is true when comparing plant and animal cells?
- A.
A. Plant cells have ribosomes and animal cells do not
- B.
B. Plant cells have a cell membrane and animals cells do not
- C.
C. Animal cells have centrioles and plant cells do not
- D.
D. Animal cells have mitochondria and plant cells do not
Correct Answer
C. C. Animal cells have centrioles and plant cells do notExplanation
Centrioles are organelles found in animal cells that play a role in cell division, specifically in the formation of the spindle fibers that separate the chromosomes during mitosis. Plant cells do not have centrioles, as they use a different mechanism for cell division. Therefore, the statement that animal cells have centrioles and plant cells do not is true.Rate this question:
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- 4.
Which of the following make up the cytoskeleton in plant and animal cells?
- A.
A. microtubules and microfilaments
- B.
B. centrioles and microtubules
- C.
C. endoplasmic reticulum and ribosomes
- D.
D. chloroplasts and mitochondria
Correct Answer
A. A. microtubules and microfilamentsExplanation
Microtubules and microfilaments make up the cytoskeleton in both plant and animal cells. The cytoskeleton provides structural support to the cell and is involved in cell movement, cell division, and maintaining cell shape. Microtubules are hollow, tubular structures made up of the protein tubulin, while microfilaments are solid, thread-like structures made up of the protein actin. Both microtubules and microfilaments are involved in various cellular processes and play important roles in maintaining the overall structure and function of the cell.Rate this question:
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- 5.
During which of the following stages of mitosis do sister chromatids line up along the center of the dividing cell?
- A.
A. prophase
- B.
B. metaphase
- C.
C. anaphase
- D.
D. telophase
Correct Answer
B. B. metapHaseExplanation
During metaphase, sister chromatids line up along the center of the dividing cell. This is the stage where the spindle fibers attach to the centromeres of the sister chromatids and align them along the metaphase plate, which is equidistant between the two poles of the cell. This alignment ensures that each daughter cell will receive an equal number of chromosomes during cell division.Rate this question:
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- 6.
The formation of new somatic cells in the human body is the direct result of which of the following processes?
- A.
A. meiosis
- B.
B. mitosis
- C.
C. Aerobic respiration
- D.
D.anaerobic respiration
Correct Answer
B. B. mitosisExplanation
Mitosis is the correct answer because it is the process by which new somatic cells are formed in the human body. During mitosis, a single cell divides into two identical daughter cells, each with the same number of chromosomes as the parent cell. This process is responsible for growth, repair, and maintenance of body tissues. Meiosis, on the other hand, is the process of cell division that produces gametes (sperm and eggs) for sexual reproduction. Aerobic and anaerobic respiration are metabolic processes that generate energy in cells, but they are not directly involved in the formation of new somatic cells.Rate this question:
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- 7.
Which of the following processes is responsible for maintaining chromosome number during asexual reproduction?
- A.
A. budding
- B.
B. fragmentation
- C.
C. binary fission
- D.
D. mitosis
Correct Answer
D. D. mitosisExplanation
Mitosis is the process responsible for maintaining the chromosome number during asexual reproduction. During mitosis, a cell divides into two identical daughter cells, each containing the same number of chromosomes as the parent cell. This ensures that the chromosome number remains constant and that the genetic information is accurately passed on to the offspring.Rate this question:
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- 8.
What events occur during the mitotic phase of the cell cycle?
- A.
A. the nucleus of the cell divides
- B.
B. cell growth and notmal metabolic processes
- C.
C. the DNA is being replicated
- D.
D. cytoplasm is divided between daughter cells
Correct Answer
A. A. the nucleus of the cell dividesExplanation
During the mitotic phase of the cell cycle, the nucleus of the cell divides. This process is known as mitosis, where the replicated DNA is separated into two identical sets, forming two daughter nuclei. This is a crucial step in cell division, as it ensures that each daughter cell receives the correct amount of genetic material. The other options mentioned, such as cell growth, DNA replication, and cytoplasm division, occur in different phases of the cell cycle, but not specifically during the mitotic phase.Rate this question:
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- 9.
What important events occur during interphase of the cell cycle?
- A.
A. cytoplasm is divided equally among the daughter cells
- B.
B. cell growth, production of new organelles, DNA replication
- C.
C. synapsis occurs, homologous chromosomes pair to form tetrads
- D.
D. the chromosomes line up along the center of the cell
Correct Answer
B. B. cell growth, production of new organelles, DNA replicationExplanation
During interphase of the cell cycle, cell growth occurs, which involves an increase in size and volume of the cell. Additionally, new organelles are produced to support the functions of the cell. DNA replication takes place during interphase, where the cell's genetic material is duplicated in preparation for cell division. These events are crucial for the cell to ensure that it is ready for the next phase of the cell cycle.Rate this question:
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- 10.
Why is mitosis important for asexual reproduction?
- A.
A. it allows for crossing over to occur
- B.
B. it allows for genetic reproduction
- C.
C. it halves the chromosome number
- D.
D. it keeps the chromosome number constant
Correct Answer
D. D. it keeps the chromosome number constantExplanation
Mitosis is important for asexual reproduction because it ensures that the chromosome number remains constant. During mitosis, the parent cell divides into two identical daughter cells, each containing the same number of chromosomes as the parent cell. This allows for the genetic information to be passed on to the offspring without any changes in the chromosome number. By maintaining the same chromosome number, mitosis helps to preserve the genetic integrity and stability of the species during asexual reproduction.Rate this question:
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- 11.
When the cell can no longer take in nutrients, oxygen, and other materials it needs fast enough to meet its needs, which of the folllowing will most likely occur?
- A.
A. hydrolysis
- B.
B. plasmolysis
- C.
C. mitosis
- D.
D. meiosis
Correct Answer
C. C. mitosisExplanation
When a cell can no longer take in nutrients, oxygen, and other materials fast enough to meet its needs, it will most likely undergo mitosis. Mitosis is the process by which a cell divides into two identical daughter cells, allowing for growth and repair of tissues. This division ensures that each daughter cell receives a copy of the genetic material and essential organelles, allowing them to continue functioning and meeting their needs.Rate this question:
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- 12.
Which of the organelles is not in plant cells?
- A.
A. vacuoles
- B.
B. centrioles
- C.
C. mitachondria
- D.
D. cell plate
Correct Answer
B. B. centriolesExplanation
Centrioles are not found in plant cells. They are only present in animal cells and are involved in cell division. Plant cells have other structures that perform similar functions, such as microtubule organizing centers, but they do not have centrioles specifically.Rate this question:
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- 13.
The animal cell centriole is a ring of how many groups of microtubules?
- A.
A. 9
- B.
B. 12
- C.
C. 15
- D.
D. 20
Correct Answer
A. A. 9Explanation
The animal cell centriole is a ring of 9 groups of microtubules. Centrioles are small cylindrical structures found in animal cells that play a crucial role in cell division. They are composed of nine sets of microtubule triplets arranged in a ring-like structure. These microtubules help in organizing the spindle fibers during cell division, ensuring the proper separation of chromosomes.Rate this question:
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- 14.
Microtubules is often referred to as ___________.
- A.
A. chromosomes
- B.
B. chromatids
- C.
C. centromeres
- D.
D. spindle fibers
Correct Answer
D. D. spindle fibersExplanation
Microtubules are referred to as spindle fibers because they are responsible for forming the spindle apparatus during cell division. The spindle apparatus helps in the separation of chromosomes by attaching to the centromeres and pulling them apart. Microtubules form the structural framework of the spindle apparatus and aid in the movement of chromosomes, ensuring their proper distribution to the daughter cells. Therefore, option D is the correct answer as it accurately describes the role of microtubules during cell division.Rate this question:
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- 15.
A cell in interphase is sometimes said to be resting. This is misleading. Why?
- A.
A. Interphase cells are actively dividing
- B.
B. Interphase cells are synthesizing RNA, proteins and growing in size
Correct Answer
B. B. InterpHase cells are synthesizing RNA, proteins and growing in sizeExplanation
The statement "A cell in interphase is sometimes said to be resting" is misleading because interphase cells are not actually at rest. During interphase, cells are actively synthesizing RNA, proteins, and growing in size. This is a crucial period in the cell cycle where various cellular processes are occurring in preparation for cell division. Therefore, the term "resting" is not accurate to describe interphase cells.Rate this question:
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- 16.
What is the correct order of the mitotic phases?
- A.
A. prophase, anaphase, metaphase, telophase
- B.
B. prophase, metaphase, telophase, anaphase
- C.
C. prophase, metaphase, anaphase, telophase
Correct Answer
C. C. propHase, metapHase, anapHase, telopHaseExplanation
During mitosis, the correct order of phases is prophase, metaphase, anaphase, and telophase. In prophase, the chromatin condenses into visible chromosomes, the nuclear membrane breaks down, and the spindle fibers start to form. In metaphase, the chromosomes line up along the equator of the cell and attach to the spindle fibers. In anaphase, the sister chromatids separate and move towards opposite poles of the cell. Finally, in telophase, the chromosomes reach the poles, the spindle fibers disassemble, and the nuclear membrane reforms around each set of chromosomes. Therefore, option C is the correct order of mitotic phases.Rate this question:
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- 17.
In what phase of mitosis do chromatid pairs line up in the center of the cell?
- A.
A. prophase
- B.
B. metaphase
- C.
C. anaphase
Correct Answer
B. B. metapHaseExplanation
During metaphase, the chromatid pairs line up in the center of the cell. This phase occurs after prophase, where the chromosomes condense, and before anaphase, where the chromatids separate and move towards opposite poles of the cell. In metaphase, the spindle fibers attach to the centromeres of the chromatids, aligning them along the equator of the cell. This alignment ensures that each daughter cell receives an equal number of chromosomes during cell division.Rate this question:
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- 18.
Approximately how much of the cell cycle is spent in interphase?
- A.
A. 10%
- B.
B. 25%
- C.
C. 33%
- D.
D. 85%
Correct Answer
D. D. 85%Explanation
During interphase, the cell prepares for cell division by growing, replicating its DNA, and carrying out normal cellular functions. This phase is the longest and most active part of the cell cycle. The remaining phases, including mitosis and cytokinesis, are relatively short in comparison. Therefore, approximately 85% of the cell cycle is spent in interphase.Rate this question:
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- 19.
What happpens to centrioles during prophase?
- A.
A. Centrioles align in the middle, the metaphase plate or cell plate, in plant cells
- B.
B. Centrioles align on the spindle fibers
- C.
C. Centrioles more to opposite ends of animal cells
- D.
D. Centrioles join the chromatid pairs together
Correct Answer
C. C. Centrioles more to opposite ends of animal cellsExplanation
During prophase, centrioles move to opposite ends of animal cells. This is a crucial step in cell division, as the centrioles play a role in forming the spindle fibers that help separate the chromosomes during mitosis. By moving to opposite ends of the cell, the centrioles ensure that the spindle fibers can attach to the chromosomes and properly align them for division. This movement of centrioles is necessary for the successful separation of genetic material and the formation of two daughter cells.Rate this question:
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- 20.
In plant cells. what divides the cytoplasm in cytokinesis?
- A.
A. cell plate
- B.
B. cell membrane
- C.
C. cell wall
- D.
D. cell membrane and cell wall
Correct Answer
A. A. cell plateExplanation
During cytokinesis in plant cells, the cytoplasm is divided by a structure called the cell plate. The cell plate forms in the middle of the dividing cell and gradually develops into a new cell wall, separating the two daughter cells. This process is unique to plant cells and is necessary for the formation of new cell walls, allowing the cells to separate and function independently.Rate this question:
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- 21.
Every cell in the human body has ___ chromosom pairs.
- A.
A. 22
- B.
B. 23
- C.
C.44
- D.
D. 46
Correct Answer
B. B. 23Explanation
Each human cell contains 23 pairs of chromosomes, for a total of 46 chromosomes. One chromosome in each pair is inherited from the mother, and the other is inherited from the father. These chromosomes carry the genetic information that determines various traits and characteristics of an individual.Rate this question:
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- 22.
Mitosis _____________________.
- A.
A. is the division of a cell's nucleus
- B.
B. produces two new identical nuclei htat are identical to the original nucleus
- C.
C. is how cells divide to allow growth and replace worn out or damaged cells
- D.
D. all of the above
Correct Answer
D. D. all of the aboveExplanation
Mitosis is the process of cell division, specifically the division of a cell's nucleus. It produces two new identical nuclei that are identical to the original nucleus. Mitosis is also how cells divide to allow growth and replace worn out or damaged cells. Therefore, the correct answer is D, all of the above.Rate this question:
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Mar 21, 2023Quiz Edited by
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Sep 30, 2010Quiz Created by
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