CH 3: The Cell Cycle

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What is the primary purpose of the cell cycle?

To maintain cellular homeostasis

To repair damaged cellular components

To generate energy for the cell

To facilitate cell growth and reproduction (correct)

During which phase of the cell cycle do chromosomes get duplicated?

G2 Phase

G1 Phase

S Phase (correct)

Prophase of Mitosis

What happens to the DNA during interphase?

DNA is actively transcribed and translated

DNA is loosely packed and dispersed throughout the nucleus (correct)

DNA is tightly packed and condensed

DNA is degraded and recycled

What is the role of the G1 phase in the cell cycle?

Cellular contents are duplicated, excluding the chromosomes Signup and view all the answers

During which phase of the cell cycle is the cell ready to enter mitosis?

G2 Phase Signup and view all the answers

What factor influences a cell's ability to acquire nutrients and dispose of waste effectively?

Surface area to volume ratio Signup and view all the answers

Why is it important that each new cell has the correct amount of genetic information after the cell divides?

To preserve the integrity of the organism Signup and view all the answers

What is the primary reason a cell undergoes division?

To maintain an effective surface area to volume ratio Signup and view all the answers

What percentage of the cell cycle does Interphase take up?

90% Signup and view all the answers

Which phase involves the condensing of chromosomes and the formation of spindle fibers?

Prophase Signup and view all the answers

What happens to the chromatids during Anaphase?

They are pulled apart and moved to opposite poles of the cell Signup and view all the answers

What is the main function of the mitotic phase?

To divide the cell into two daughter cells with identical genetic material Signup and view all the answers

What occurs during Telophase?

The nuclear membranes reform around each set of chromosomes at the poles Signup and view all the answers

What is the final stage of the mitotic phase?

Cytokinesis Signup and view all the answers

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

Metaphase Signup and view all the answers

What happens to the chromosomes during the S phase of interphase?

The chromosomes are duplicated, resulting in two sister chromatids held together by a centromere. Signup and view all the answers

What is the primary purpose of the G2 phase of interphase?

To continue cell growth and produce new proteins. Signup and view all the answers

What is the main difference between the G1 and G2 phases of interphase?

The G1 phase involves cell growth and protein production, while the G2 phase prepares the cell for mitosis. Signup and view all the answers

What is the role of the surface area to volume ratio in the cell cycle?

It impacts the cell's ability to acquire nutrients and dispose of waste effectively. Signup and view all the answers

What is the main function of interphase?

To prepare the cell for division. Signup and view all the answers

What is the main problem a cell faces when its volume increases faster than its surface area?

Decreased surface area to volume ratio Signup and view all the answers

What happens to the DNA during the G1 phase of interphase?

The DNA is loosely packed and dispersed throughout the nucleus. Signup and view all the answers

What is the final stage of interphase before the cell enters mitosis?

The G2 phase. Signup and view all the answers

Which event characterizes the Prophase stage of the mitotic phase?

Condensation of chromosomes Signup and view all the answers

What is the outcome of Cytokinesis in the cell cycle process?

Division of the cytoplasm Signup and view all the answers

Why is Interphase crucial in the cell cycle process?

For preparation for division Signup and view all the answers

What signifies the beginning of Telophase during the mitotic phase?

Formation of nuclear membranes Signup and view all the answers

What happens to chromatids during Anaphase?

They are pulled apart and move to opposite poles. Signup and view all the answers

In what phase do the spindle fibers start to form in the mitotic phase?

Prophase Signup and view all the answers

Why is it essential for a cell to maintain an effective surface area to volume ratio?

For efficient material exchange with its environment Signup and view all the answers

During which phase of the cell cycle does the cell produce new proteins and ensure that each new cell will have the correct amount of genetic information after the cell divides?

G2 Phase Signup and view all the answers

Which phase of the cell cycle involves the loosening of chromatin and the dispersion of DNA throughout the nucleus to allow for efficient DNA replication and transcription?

Interphase Signup and view all the answers

Which phase of the cell cycle involves the alignment of chromosomes at the cell's equator, followed by the separation of sister chromatids?

Anaphase Signup and view all the answers

During which phase of the cell cycle does the centrosome move to opposite ends of the cell, and the nuclear envelope breaks down, allowing spindle fibers to attach to the kinetochores of the chromosomes?

Prophase Signup and view all the answers

Which phase of the cell cycle involves the reformation of the nuclear envelope, the decondensation of chromosomes, and the cytokinesis process?

Telophase Signup and view all the answers

Which phase of the cell cycle involves the duplication of each chromosome, resulting in two sister chromatids held together by a centromere, ensuring that each new cell will have the correct amount of genetic information after the cell divides?

S Phase Signup and view all the answers

Which phase of the cell cycle involves the condensing of chromosomes and the formation of spindle fibers?

Prophase Signup and view all the answers

During which phase of the mitotic phase do chromatids become daughter chromosomes?

Anaphase Signup and view all the answers

What is the primary reason for spindle fibers to form during mitosis?

To separate chromosomes during cell division Signup and view all the answers

What is the main function of cytokinesis in the cell cycle process?

To divide the cytoplasm Signup and view all the answers

Why does a cell need to maintain an effective surface area to volume ratio?

To enhance material exchange with the environment Signup and view all the answers

What is the purpose of nuclear membranes reforming around chromosomes in Telophase?

To protect and organize genetic material Signup and view all the answers

What happens to the nuclear envelope during Prophase in the mitotic phase?

It disappears Signup and view all the answers

Why do chromosomes need to align at the cell's equator during Metaphase?

To ensure equal separation of genetic material Signup and view all the answers

What is the significance of each new cell having identical genetic material after division?

To ensure proper functioning and heredity Signup and view all the answers

CH 3: The Cell Cycle

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Questions and Answers

What is the primary purpose of the cell cycle?

During which phase of the cell cycle do chromosomes get duplicated?

What happens to the DNA during interphase?

What is the role of the G1 phase in the cell cycle?

During which phase of the cell cycle is the cell ready to enter mitosis?

What factor influences a cell's ability to acquire nutrients and dispose of waste effectively?

Why is it important that each new cell has the correct amount of genetic information after the cell divides?

What is the primary reason a cell undergoes division?

What percentage of the cell cycle does Interphase take up?

Which phase involves the condensing of chromosomes and the formation of spindle fibers?

What happens to the chromatids during Anaphase?

What is the main function of the mitotic phase?

What occurs during Telophase?

What is the final stage of the mitotic phase?

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

What happens to the chromosomes during the S phase of interphase?

What is the primary purpose of the G2 phase of interphase?

What is the main difference between the G1 and G2 phases of interphase?

What is the role of the surface area to volume ratio in the cell cycle?

What is the main function of interphase?

What is the main problem a cell faces when its volume increases faster than its surface area?

What happens to the DNA during the G1 phase of interphase?

What is the final stage of interphase before the cell enters mitosis?

Which event characterizes the Prophase stage of the mitotic phase?

What is the outcome of Cytokinesis in the cell cycle process?

Why is Interphase crucial in the cell cycle process?

What signifies the beginning of Telophase during the mitotic phase?

What happens to chromatids during Anaphase?

In what phase do the spindle fibers start to form in the mitotic phase?

Why is it essential for a cell to maintain an effective surface area to volume ratio?

During which phase of the cell cycle does the cell produce new proteins and ensure that each new cell will have the correct amount of genetic information after the cell divides?

Which phase of the cell cycle involves the loosening of chromatin and the dispersion of DNA throughout the nucleus to allow for efficient DNA replication and transcription?

Which phase of the cell cycle involves the alignment of chromosomes at the cell's equator, followed by the separation of sister chromatids?

During which phase of the cell cycle does the centrosome move to opposite ends of the cell, and the nuclear envelope breaks down, allowing spindle fibers to attach to the kinetochores of the chromosomes?

Which phase of the cell cycle involves the reformation of the nuclear envelope, the decondensation of chromosomes, and the cytokinesis process?

Which phase of the cell cycle involves the duplication of each chromosome, resulting in two sister chromatids held together by a centromere, ensuring that each new cell will have the correct amount of genetic information after the cell divides?

Which phase of the cell cycle involves the condensing of chromosomes and the formation of spindle fibers?

During which phase of the mitotic phase do chromatids become daughter chromosomes?

What is the primary reason for spindle fibers to form during mitosis?

What is the main function of cytokinesis in the cell cycle process?

Why does a cell need to maintain an effective surface area to volume ratio?

What is the purpose of nuclear membranes reforming around chromosomes in Telophase?

What happens to the nuclear envelope during Prophase in the mitotic phase?

Why do chromosomes need to align at the cell's equator during Metaphase?

What is the significance of each new cell having identical genetic material after division?

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