Textbook Question
Mark the following statements about the cell cycle as true or false. If a statement is false, correct it to make a true statement.
The main enzyme that builds the new DNA strands during DNA synthesis is RNA synthetase.
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Ch. 3 The Cell
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 3, Problem 20
Match the following terms with the correct definitions.
G1
Metaphase
S phase
Cytokinesis
Telophase
M phase
G2
Anaphase
a. Division of the cytoplasm
b. Second growth stage of the cell cycle
c. Stage of the cell cycle in which the cell divides
d. Stage of mitosis in which the sister chromatids line up on the cell's equator
e. Stage of the cell cycle in which DNA is replicated
f. Stage of mitosis in which the chromosomes move to opposite poles of the cell
g. Initial growth phase of the cell cycle
h. Stage of mitosis in which the nuclear envelopes reassemble
Verified step by step guidance1
Step 1: Understand the terms provided in the problem. These include G1, Metaphase, S phase, Cytokinesis, Telophase, M phase, G2, and Anaphase. Each term corresponds to a specific stage or process in the cell cycle or mitosis.
Step 2: Review the definitions provided (a through h). Each definition describes a specific event or characteristic of the cell cycle or mitosis. For example, 'Division of the cytoplasm' refers to Cytokinesis, and 'Stage of the cell cycle in which DNA is replicated' refers to the S phase.
Step 3: Match each term with its corresponding definition based on your knowledge of the cell cycle and mitosis. For instance, G1 is the initial growth phase of the cell cycle, and Metaphase is the stage of mitosis where sister chromatids line up on the cell's equator.
Step 4: Use process of elimination to ensure each term is matched correctly. For example, if Telophase is the stage of mitosis where nuclear envelopes reassemble, then it cannot correspond to any other definition.
Step 5: Double-check your matches by reviewing the characteristics of each stage or process in the cell cycle and mitosis. Ensure that each term aligns with its definition logically and scientifically.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Cell Cycle
The cell cycle is a series of phases that a cell goes through to grow and divide. It consists of interphase (G1, S, G2) and the mitotic phase (M phase), which includes mitosis and cytokinesis. Understanding the cell cycle is crucial for grasping how cells replicate and maintain their functions.
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03:31
Cell Cycle Regulation
Mitosis
Mitosis is the process of cell division that results in two genetically identical daughter cells. It is divided into several stages: prophase, metaphase, anaphase, and telophase. Each stage has specific events, such as chromosome alignment and separation, which are essential for accurate cell division.
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03:21Phases of Mitosis
Cytokinesis
Cytokinesis is the final step of cell division, occurring after mitosis, where the cytoplasm of a parental cell is divided into two daughter cells. This process ensures that each daughter cell receives the necessary organelles and cytoplasmic components. It is crucial for the completion of the cell cycle and the formation of two distinct cells.
Recommended video:
01:25Cytokinesis
Related Practice
Textbook Question
Mark the following statements about the cell cycle as true or false. If a statement is false, correct it to make a true statement.
The first three stages of the cell cycle are collectively called interphase.
Textbook Question
Mark the following statements about the cell cycle as true or false. If a statement is false, correct it to make a true statement.
During metaphase, the sister chromatids are pulled apart and the chromosomes move to the opposite poles of the cell.