Domanda del libro di testo
The biggest source of metabolic acids in the body is:
a. Lactic acid
b. Ketone bodies
c. Carbon dioxide
d. Uric acid
424
views
Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- 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
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Amerman 2nd EditionCh. 25 Fluid, Electrolyte, and Acid-Base HomeostasisProblema 12
Amerman 2nd EditionCh. 25 Fluid, Electrolyte, and Acid-Base HomeostasisProblema 12Capitolo 25, Problema 12
What is the main buffer system of the ECF?
a. Protein buffer system
b. Carbonic acid–bicarbonate ion buffer system
c. Phosphate buffer system
d. None of the above
Guida verificata passo dopo passo1
Step 1: Understand the concept of buffering systems in the body. Buffers are chemical systems that help maintain pH balance by neutralizing excess acids or bases. The extracellular fluid (ECF) requires a specific buffer system to stabilize its pH.
Step 2: Review the main buffer systems in the body. The protein buffer system primarily works in intracellular fluid (ICF) and blood plasma. The phosphate buffer system is more active in the ICF and kidneys. The carbonic acid–bicarbonate buffer system is the primary buffer system in the ECF.
Step 3: Learn how the carbonic acid–bicarbonate buffer system works. It involves the equilibrium between carbonic acid (H₂CO₃) and bicarbonate ions (HCO₃⁻). The reaction can be represented as: . This system helps resist changes in pH by shifting the equilibrium as needed.
Step 4: Compare the buffer systems listed in the question. The protein buffer system and phosphate buffer system are not the primary systems for ECF. The carbonic acid–bicarbonate buffer system is specifically designed to regulate pH in the ECF.
Step 5: Conclude that the correct answer is the carbonic acid–bicarbonate buffer system, as it is the main buffer system of the ECF, maintaining pH balance effectively.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Concetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Buffer Systems
Buffer systems are solutions that resist changes in pH when small amounts of acid or base are added. They play a crucial role in maintaining the acid-base balance in biological systems, particularly in extracellular fluid (ECF), where they help stabilize pH levels essential for physiological functions.
Video consigliato:
Percorso guidato
05:38
Buffers
Carbonic Acid–Bicarbonate Buffer System
The carbonic acid–bicarbonate buffer system is the primary buffer system in the ECF. It involves the equilibrium between carbonic acid (H2CO3) and bicarbonate ions (HCO3-), which can neutralize excess acids or bases, thus maintaining a stable pH in the blood and other extracellular fluids.
Video consigliato:
Percorso guidato
04:19Carbon
Extracellular Fluid (ECF)
Extracellular fluid refers to all body fluids outside of cells, including interstitial fluid and plasma. It is vital for transporting nutrients, waste, and signaling molecules, and its pH must be tightly regulated to ensure proper cellular function and overall homeostasis.
Video consigliato:
2:39Intracellular Receptors and Direct Gene Action Example 1
Pratica correlata
Domanda del libro di testo
Explain what happens to the pH of a buffered solution when hydrogen ions are added. Why does this happen?
347
views
Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d. Hypocalcemia causes neurons to become hyperexcitable, leading to potential tetanic contractions.
443
views
Domanda del libro di testo
Which of the following mechanisms is/are used by the kidneys to regulate the pH of the blood? Circle all that apply.
a. Hydrogen ions are secreted from the proximal and distal tubules and the collecting system.
b. Hydrogen ions are reabsorbed from the nephron loop.
c. New bicarbonate ions are formed from glutamine and carbon dioxide in the interstitial fluid that enters proximal tubule cells.
d. Bicarbonate ions can be secreted.
e. Bicarbonate ions are reabsorbed directly from the filtrate.
475
views
Domanda del libro di testo
An increase in ventilation ________ the pH of the blood due to a/an ________ of carbon dioxide in the blood. A decrease in ventilation ________ the pH of the blood due to a/an ________ of carbon dioxide in the blood.
408
views
Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
e. Chloride ions are generally reabsorbed from the kidneys, along with bicarbonate ions.
372
views