Cell Biology - The Cell & Its Environment

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| By Jffadallan

Jffadallan

Community Contributor

Quizzes Created: 3 | Total Attempts: 5,115

Questions: 10 | Attempts: 944 | Updated: Mar 21, 2023

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Questions and Answers

1.

What is the first stage of the Cell Cycle?
- A.
  
  Mititsis
- B.
  
  Interphase
Correct Answer
B. Interphase

Explanation
Interphase is the correct answer because it is the first stage of the cell cycle. It is the period in which the cell prepares for division by growing, replicating its DNA, and performing necessary cellular functions. During interphase, the cell is in a resting state and carries out its normal metabolic activities. This stage is crucial for the cell's growth and development before it enters the next stages of the cell cycle, such as mitosis.

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2.

The process of cells growing and dividing is known as what?
- A.
  
  Anaphase
- B.
  
  The cell cycle
- C.
  
  Metaphase
- D.
  
  Photosynthesis
Correct Answer
B. The cell cycle

Explanation
The correct answer is "the cell cycle" because it is the process in which cells grow and divide. During the cell cycle, cells go through different phases such as interphase, mitosis, and cytokinesis. Interphase is the period of growth and DNA replication, while mitosis is the phase of cell division where the duplicated DNA is separated into two identical sets. Finally, cytokinesis is the division of the cytoplasm to form two separate daughter cells. Therefore, "the cell cycle" accurately describes the process of cells growing and dividing.

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3.

What are the 3 stages of interphase?
- A.
  
  Metaphase, interphase, prophase
- B.
  
  Cytokinesis, M-phase, G-phase
- C.
  
  Mitosis, cleavage, prophase
- D.
  
  G1, S phase, G2
Correct Answer
D. G1, S phase, G2

Explanation
The correct answer is G1, S phase, G2. Interphase is the longest phase of the cell cycle and consists of three stages: G1, S phase, and G2. During G1, the cell grows and prepares for DNA replication. In S phase, DNA replication occurs, resulting in the duplication of the cell's genetic material. Finally, during G2, the cell continues to grow and prepares for cell division. Therefore, the three stages of interphase are G1, S phase, and G2.

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4.

What two types of cell division are there?
- A.
  
  Somatic
- B.
  
  Reproductive
- C.
  
  Duplicate
Correct Answer(s)
A. Somatic
B. Reproductive

Explanation
There are two types of cell division: somatic and reproductive. Somatic cell division, also known as mitosis, occurs in non-reproductive cells and is responsible for growth, repair, and maintenance of the body. Reproductive cell division, also known as meiosis, occurs in reproductive cells and is involved in the production of gametes (sperm and egg cells) for sexual reproduction. The term "duplicate" does not accurately describe the types of cell division, as it is a general term that can refer to various processes, whereas somatic and reproductive specifically describe the two types of cell division.

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5.

Which of the four phases takes place during the nuclear division mitosis?
- A.
  
  Prophase
- B.
  
  Metaphase
- C.
  
  Anaphase
- D.
  
  Telophase
Correct Answer(s)
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Explanation
During the nuclear division mitosis, the cell goes through four distinct phases: prophase, metaphase, anaphase, and telophase. In prophase, the chromatin condenses into chromosomes, the nuclear envelope breaks down, and the spindle apparatus begins to form. Metaphase is characterized by the alignment of chromosomes along the equator of the cell. In anaphase, the sister chromatids separate and move towards opposite poles of the cell. Finally, in telophase, the chromosomes reach the poles, the nuclear envelope reforms, and the cell begins to divide.

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6.

Which of the following 4 phases of mitosis sees the breakdown of the nuclear envelope?
- A.
  
  Prophase
- B.
  
  Metaphase
- C.
  
  Anaphase
- D.
  
  Telophase
Correct Answer
A. Prophase

Explanation
During prophase, the nuclear envelope breaks down, allowing the genetic material to be accessible for further processes in mitosis. This phase is characterized by the condensation of chromatin into visible chromosomes, the formation of the mitotic spindle, and the disintegration of the nuclear membrane. The breakdown of the nuclear envelope is essential for the separation and movement of chromosomes during mitosis.

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7.

The first phase of mitosis is __________
- A.
  
  Interphase
- B.
  
  Prophase
- C.
  
  Metaphase
Correct Answer
B. Prophase

Explanation
The first phase of mitosis is prophase. During prophase, the chromatin condenses into visible chromosomes and the nuclear membrane breaks down. The centrosomes move to opposite poles of the cell and spindle fibers begin to form. This phase marks the start of the process where the genetic material is prepared for division and the cell prepares for the subsequent stages of mitosis.

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8.

Cell division is
- A.
  
  The production of genetically identical offspring from a single parent
- B.
  
  The process of two cells forming into one cell
- C.
  
  The process by which a cell divides into two new daughter cells
Correct Answer
C. The process by which a cell divides into two new daughter cells

Explanation
Cell division is the process by which a cell divides into two new daughter cells. During this process, the genetic material is replicated and evenly distributed between the two daughter cells, resulting in the production of genetically identical offspring. This is an essential process for growth, development, and repair in multicellular organisms.

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9.

The cell structure responsible for controlling which molecules enter and leave the cell and for the recognition of chemical signals is the: (Standard 1.2g)
- A.
  
  Cell wall
- B.
  
  Nuclear membrane
- C.
  
  Mitochondria
- D.
  
  Chloroplast
- E.
  
  Plasma membrane
Correct Answer
E. Plasma membrane

Explanation
The plasma membrane is responsible for controlling the movement of molecules into and out of the cell. It acts as a barrier, allowing only certain molecules to pass through while blocking others. Additionally, the plasma membrane contains receptors that can recognize and respond to chemical signals, allowing the cell to communicate with its environment. The other options listed, such as the cell wall, nuclear membrane, mitochondria, and chloroplast, have different functions and are not directly involved in controlling molecule movement or chemical signal recognition.

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10.

Which statement best describes the function of a cell? (Standard 1.2h)
- A.
  
  Large organic food molecules like protein must be initially broken down. Once the broken down nutrient enters the cell, the cell will use the building blocks to synthesize organic compounds necessary for life.
- B.
  
  Large organic food molecules like protein directly enter the cell where they are used for energy.
- C.
  
  Large organic food molecules like protein are broken down only after they enter the cell. Once broken down, the cell will excrete the broken down substances.
- D.
  
  The cell makes its own protein and does not need nutrients from the outside environments.
- E.
  
  The function of the cell is to convert proteins to amino acids.
Correct Answer
A. Large organic food molecules like protein must be initially broken down. Once the broken down nutrient enters the cell, the cell will use the building blocks to synthesize organic compounds necessary for life.

Explanation
The correct answer states that large organic food molecules like protein must be broken down before entering the cell. Once broken down, the cell will use the building blocks to synthesize organic compounds necessary for life. This is an accurate description of the function of a cell, as cells require nutrients to be broken down and used for various metabolic processes, including the synthesis of essential compounds.

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Dec 10, 2015

Quiz Created by
Jffadallan

Cell Biology - The Cell & Its Environment

What is the first stage of the Cell Cycle?

The process of cells growing and dividing is known as what?

What are the 3 stages of interphase?

What two types of cell division are there?

Which of the four phases takes place during the nuclear division mitosis?

Which of the following 4 phases of mitosis sees the breakdown of the nuclear envelope?

The first phase of mitosis is __________

Cell division is

The cell structure responsible for controlling which molecules enter and leave the cell and for the recognition of chemical signals is the: (Standard 1.2g)

Which statement best describes the function of a cell? (Standard 1.2h)