CH 3: The role of mitosis

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What is the main purpose of mitosis?

To cause genetic diversity

To produce two identical daughter cells (correct)

To create different types of cells

To reduce the number of cells

Where does mitotic activity primarily occur in animals for skin renewal?

In the dermis

In the basal layers of the skin (correct)

In the outermost layers of the skin

In the epidermis

Which region in plants is known for high mitotic activity?

The xylem

The bark

The apical meristem (correct)

The root cap

What is one of the functions of mitosis related to tissue integrity?

Replacing worn-out or damaged cells Signup and view all the answers

Which phase of mitosis involves the separation of sister chromatids?

Anaphase Signup and view all the answers

What are the key stages of mitosis in order?

Prophase, Metaphase, Anaphase, Telophase Signup and view all the answers

Which unicellular organisms use mitosis as a means of reproduction?

Bacteria Signup and view all the answers

What is the main difference between mitosis in animal and plant cells?

Formation of a cell plate during cytokinesis in plant cells Signup and view all the answers

During prophase, what is the structure that migrates to opposite poles of the cell?

Centrosome Signup and view all the answers

Which phase of mitosis involves chromosomes aligning at the cell's equator?

Metaphase Signup and view all the answers

What is the significance of understanding mitosis in the context of medical applications?

Understanding abnormal cell division like in cancer Signup and view all the answers

In animal cells, what appears as two chromatids connected by a centromere during prophase?

Chromosomes Signup and view all the answers

What is the final stage of mitosis where the cell membrane starts to constrict and nuclear membranes reappear?

Telophase Signup and view all the answers

Which phase of mitosis involves chromatids splitting at the centromere and being pulled to opposite poles?

Anaphase Signup and view all the answers

What is the primary function of mitosis in multicellular organisms regarding growth?

Expanding the organism by multiplying cells Signup and view all the answers

Which process ensures the maintenance of tissue integrity and function in organisms?

Cellular turnover Signup and view all the answers

In which unicellular organisms does mitosis serve as a means of reproduction through mechanisms like binary fission and budding?

Bacteria and protists Signup and view all the answers

Where does mitotic activity mainly occur in plants for growth and development?

Apical meristem and lateral meristem Signup and view all the answers

Which structure is responsible for the separation of sister chromatids during mitosis?

Spindle fibers Signup and view all the answers

What is the location in animals where mitosis primarily occurs for blood cell production?

Bone marrow Signup and view all the answers

Which stage of mitosis involves the alignment of chromosomes at the cell's equator?

Metaphase Signup and view all the answers

What is the role of centrioles during mitosis in animal cells?

Migrating to opposite poles to form a centrosome Signup and view all the answers

In plant cells, what structure is absent during mitosis compared to animal cells?

Centrosome Signup and view all the answers

During metaphase, where do chromosomes align in relation to the cell?

At the cell's equator Signup and view all the answers

What is the primary function of the mitotic spindle during cell division?

Separating chromatids during anaphase Signup and view all the answers

What occurs during telophase of mitosis in plant cells that differs from animal cells?

Formation of a cell wall at the equator Signup and view all the answers

What is the significance of understanding mitosis in developmental biology?

Exploring tissue regeneration mechanisms Signup and view all the answers

Which phase of mitosis involves the formation of two centrioles into a centrosome?

Prophase Signup and view all the answers

What distinguishes cytokinesis in plant cells from that in animal cells?

Development of a cell plate into a new cell wall Signup and view all the answers

What is the notable difference between mitosis in plant and animal cells in terms of centrioles?

Plant cells lack centrioles during mitosis. Signup and view all the answers

During which phase of mitosis do chromosomes appear as two chromatids connected by a centromere?

Prophase Signup and view all the answers

What happens in plant cells instead of cell membrane constriction during cytokinesis in mitosis?

Formation of a cell plate Signup and view all the answers

Which phase of mitosis involves individual chromatids (daughter chromosomes) being pulled to opposite poles by spindle fibers?

Anaphase Signup and view all the answers

What is the primary purpose of mitosis in the context of medical applications such as cancer research?

Controlling abnormal cell division Signup and view all the answers

Which structural component is absent in plant cells during mitosis that is present in animal cells?

Centrioles Signup and view all the answers

During which phase of mitosis do chromosomes align at the cell's equator, attaching to spindle fibers by their centromeres?

Metaphase Signup and view all the answers

What is the key significance of understanding mitosis for developmental biology?

Studying developmental processes Signup and view all the answers

What is the specific role of mitosis in maintaining tissue integrity and function in organisms?

Mitosis replaces worn-out or damaged cells through regular cellular turnover. Signup and view all the answers

Which unicellular organisms use mechanisms like binary fission and budding for reproduction via mitosis?

Bacteria, like E. coli and Streptococcus Signup and view all the answers

What is the significance of understanding mitosis in the context of medical applications?

Understanding mitosis aids in diagnosing and treating genetic disorders. Signup and view all the answers

Which phase of mitosis involves the formation of two centrioles into a centrosome?

Prophase Signup and view all the answers

What is the main difference between mitosis in animal and plant cells?

Plant cells undergo cytokinesis via cell plates, while animal cells use a contractile ring. Signup and view all the answers

What is the role of centrioles during mitosis in animal cells?

Centrioles are involved in spindle formation and chromosome migration. Signup and view all the answers

In animal cells, what appears as two chromatids connected by a centromere during prophase?

Sister chromatids Signup and view all the answers

CH 3: The role of mitosis

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Questions and Answers

What is the main purpose of mitosis?

Where does mitotic activity primarily occur in animals for skin renewal?

Which region in plants is known for high mitotic activity?

What is one of the functions of mitosis related to tissue integrity?

Which phase of mitosis involves the separation of sister chromatids?

What are the key stages of mitosis in order?

Which unicellular organisms use mitosis as a means of reproduction?

What is the main difference between mitosis in animal and plant cells?

During prophase, what is the structure that migrates to opposite poles of the cell?

Which phase of mitosis involves chromosomes aligning at the cell's equator?

What is the significance of understanding mitosis in the context of medical applications?

In animal cells, what appears as two chromatids connected by a centromere during prophase?

What is the final stage of mitosis where the cell membrane starts to constrict and nuclear membranes reappear?

Which phase of mitosis involves chromatids splitting at the centromere and being pulled to opposite poles?

What is the primary function of mitosis in multicellular organisms regarding growth?

Which process ensures the maintenance of tissue integrity and function in organisms?

In which unicellular organisms does mitosis serve as a means of reproduction through mechanisms like binary fission and budding?

Where does mitotic activity mainly occur in plants for growth and development?

Which structure is responsible for the separation of sister chromatids during mitosis?

What is the location in animals where mitosis primarily occurs for blood cell production?

Which stage of mitosis involves the alignment of chromosomes at the cell's equator?

What is the role of centrioles during mitosis in animal cells?

In plant cells, what structure is absent during mitosis compared to animal cells?

During metaphase, where do chromosomes align in relation to the cell?

What is the primary function of the mitotic spindle during cell division?

What occurs during telophase of mitosis in plant cells that differs from animal cells?

What is the significance of understanding mitosis in developmental biology?

Which phase of mitosis involves the formation of two centrioles into a centrosome?

What distinguishes cytokinesis in plant cells from that in animal cells?

What is the notable difference between mitosis in plant and animal cells in terms of centrioles?

During which phase of mitosis do chromosomes appear as two chromatids connected by a centromere?

What happens in plant cells instead of cell membrane constriction during cytokinesis in mitosis?

Which phase of mitosis involves individual chromatids (daughter chromosomes) being pulled to opposite poles by spindle fibers?

What is the primary purpose of mitosis in the context of medical applications such as cancer research?

Which structural component is absent in plant cells during mitosis that is present in animal cells?

During which phase of mitosis do chromosomes align at the cell's equator, attaching to spindle fibers by their centromeres?

What is the key significance of understanding mitosis for developmental biology?

What is the specific role of mitosis in maintaining tissue integrity and function in organisms?

Which unicellular organisms use mechanisms like binary fission and budding for reproduction via mitosis?

What is the significance of understanding mitosis in the context of medical applications?

Which phase of mitosis involves the formation of two centrioles into a centrosome?

What is the main difference between mitosis in animal and plant cells?

What is the role of centrioles during mitosis in animal cells?

In animal cells, what appears as two chromatids connected by a centromere during prophase?

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