The Cell Cycle: Ready, Set, Grow...

2.

In this phase of the cell cycle, the plasma membrane pinches until two daughter cells are formed.

Explanation
During cytokinesis, the plasma membrane of the cell constricts and pinches inwards, eventually dividing the cell into two daughter cells. This process ensures that each daughter cell receives a complete set of genetic material and other cellular components. The term "cyto" refers to cells, which is relevant to the process of cytokinesis. Therefore, the correct answer is cytokinesis.

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3.

Which stages of are NOT a part of mitosis?

Anaphase, metaphase
Prophase, telophase
Interphase, cytokinesis
Prophase, metaphase

Correct Answer

A. Interphase, cytokinesis

Explanation

Interphase and cytokinesis are not stages of mitosis. Interphase is the stage where the cell prepares for division by growing and replicating its DNA. Cytokinesis is the final stage of cell division, where the cytoplasm divides into two separate daughter cells. Mitosis consists of prophase, metaphase, anaphase, and telophase, where the nucleus divides and the chromosomes are separated into the daughter cells.

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4.

What is the correct order of mitosis?

Telophase, anaphase, prophase, metaphase
Anaphase, metaphase, prophase, telophase
Metaphase, telophase, anaphase, prophase
Prophase, metaphase, anaphase, telophase

Correct Answer

A. Prophase, metaphase, anaphase, telophase

Explanation

Mitosis is the process of cell division, which consists of four stages: prophase, metaphase, anaphase, and telophase. In prophase, the chromatin condenses into visible chromosomes, the nuclear membrane breaks down, and the spindle fibers begin to form. In metaphase, the chromosomes line up at the center of the cell and attach to the spindle fibers. In anaphase, the sister chromatids separate and move towards opposite ends of the cell. In telophase, the chromosomes reach the opposite poles of the cell, the spindle fibers disassemble, and the nuclear membrane reforms. Therefore, the correct order of mitosis is prophase, metaphase, anaphase, telophase.

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5.

This is a picture of a cell during _____________. The sister chromatids are being pulled apart.

Interphase
Anaphase
Prophase
Metaphase

Correct Answer

A. Anaphase

Explanation

During anaphase, the sister chromatids are being pulled apart. This is the stage of cell division where the paired chromosomes separate and move towards opposite poles of the cell. The spindle fibers attached to the centromeres of the sister chromatids contract, causing them to move towards opposite ends of the cell. This process ensures that each daughter cell receives a complete set of chromosomes.

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6.

During this phase, the nuclear membrane begins to disappear and the spindle fibers begin to form.

Interphase
Anaphase
Telophase
Prophase

Correct Answer

A. Prophase

Explanation

During the prophase of cell division, the nuclear membrane starts to break down, allowing the genetic material to be exposed. At the same time, spindle fibers, which are responsible for separating the chromosomes, begin to form. This phase marks the beginning of mitosis or meiosis, where the cell prepares to divide into two daughter cells.

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7.

Mitosis is the result of uncontrolled division of cells.

True
False

Correct Answer

A. False

Explanation

Mitosis is not the result of uncontrolled division of cells. Mitosis is a highly regulated process that occurs in eukaryotic cells to ensure the accurate division and distribution of genetic material. It is a part of the cell cycle and is responsible for the growth, development, and repair of tissues in multicellular organisms. The process of mitosis involves the division of the nucleus into two identical daughter nuclei, each containing a complete set of chromosomes.

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8.

What are chromosomes made of?

Cytoplasm
Centrioles
RNA and proteins
DNA and proteins

Correct Answer

A. DNA and proteins

Explanation

Chromosomes are made up of DNA and proteins. DNA is the genetic material that carries the instructions for the development and functioning of living organisms. It contains the genes that determine an individual's traits and characteristics. Proteins, on the other hand, help in organizing and packaging the DNA into a compact structure, allowing it to fit inside the nucleus of a cell. Together, DNA and proteins form the structure of chromosomes, which play a crucial role in the transmission of genetic information from one generation to the next.

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9.

At the end of the cell cycle, there are _____ daughter cells.

4
3
2
1

Correct Answer

A. 2

Explanation

At the end of the cell cycle, there are two daughter cells. This is because during the cell cycle, a parent cell divides into two identical daughter cells through a process called mitosis. Each daughter cell contains a complete set of genetic material and is capable of carrying out its own functions independently. Therefore, the correct answer is 2.

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The Cell Cycle: Ready, Set, Grow...

In the cell cycle, this stage is when DNA is duplicated and proteins are made.

In this phase of the cell cycle, the plasma membrane pinches until two daughter cells are formed.

Which stages of are NOT a part of mitosis?

What is the correct order of mitosis?

This is a picture of a cell during _____________. The sister chromatids are being pulled apart.

During this phase, the nuclear membrane begins to disappear and the spindle fibers begin to form.

Mitosis is the result of uncontrolled division of cells.

What are chromosomes made of?

At the end of the cell cycle, there are _____ daughter cells.