Textbook Question
A hypothetical poison prevents transcription factors from binding to the gene for tubulin proteins. What impact would this have on mitosis, and why?
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Ch. 3 The Cell
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- 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 Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- 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
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Not the one you use?Change textbook
Chapter 3, Problem L3.1c
Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
Primary active transport
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Understand that primary active transport is a cellular process where energy from ATP is used to move molecules against their concentration gradient.
Identify the key components involved in primary active transport, such as the ATP molecule and transport proteins like pumps (e.g., sodium-potassium pump).
Recognize that this process is essential for maintaining cellular homeostasis, including ion balance and membrane potential.
Formulate a concise sentence summarizing the process, ensuring it includes the use of ATP, movement against the gradient, and its importance to the cell.
Review the sentence to ensure it is clear, accurate, and within the 25-word limit, emphasizing the core aspects of primary active transport.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Primary Active Transport
Primary active transport is a cellular process that uses ATP to move ions or molecules against their concentration gradient, establishing electrochemical gradients essential for cellular functions.
Recommended video:
02:53
Primary Active Transport
ATP (Adenosine Triphosphate)
ATP is the primary energy currency of the cell, providing the necessary energy for various biochemical reactions, including the active transport of substances across membranes.
Recommended video:
06:44ATP
Concentration Gradient
A concentration gradient refers to the difference in the concentration of a substance across a space, driving the movement of molecules from areas of high concentration to low concentration.
Recommended video:
04:51Concentration Gradients and Diffusion
Related Practice
Textbook Question
Mark the following statements about the plasma membrane as true or false. If a statement is false, correct it to make a true statement.
Integral membrane proteins generally span the width of the plasma membrane, whereas peripheral proteins are found on only one side of the membrane.
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Textbook Question
A popular science fiction program once had an episode that featured an 'intron virus' that 'turned on' the introns in the genes, causing the synthesis of abnormal proteins. The episode may have been entertaining, but its premise had a large flaw about the nature of introns. What was the flaw?
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Textbook Question
Which of the following best describes the arrangement of the main component of the plasma membrane?
a. A monolayer of phospholipids with the phosphate heads facing the cytosol and the fatty acid tails facing the extracellular fluid
b. A bilayer of phospholipids with the phosphate heads facing the cytosol and extracellular fluid, and the fatty acid tails facing one another
c. A bilayer of phospholipids with the phosphate heads of one layer facing the fatty acid tails of the other
d. A bilayer of phospholipids with a layer of triglycerides sandwiched in the middle
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Textbook Question
Mark the following statements about the plasma membrane as true or false. If a statement is false, correct it to make a true statement.
Cholesterol provides the plasma membrane with stability in the face of changing ion concentrations.
Textbook Question
Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
DNA synthesis
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