CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
3rd Edition
ISBN: 2818440059223
Author: Hewitt
Publisher: PEARSON+
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Chapter 19, Problem 26TIS
To determine
To find:
The events that take place in the membrane during the generation of the action potential.
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Chapter 19 Solutions
CONCEPTUAL INTEGRATED SCIENCE (PEARSON+
Ch. 19 - What are the four main types of tissues in the...Ch. 19 - Multiple tissues combine to make an_____, a...Ch. 19 - What is an organ system?Ch. 19 - What is homeostasis?Ch. 19 - Prob. 5RCCCh. 19 - Prob. 6RCCCh. 19 - Which part of the brain is responsible for balance...Ch. 19 - Prob. 8RCCCh. 19 - Describe the functions of each of the four lobes...Ch. 19 - Which structures make up the central nervous...
Ch. 19 - Prob. 11RCCCh. 19 - What are the functions of sensory neurons,...Ch. 19 - Prob. 13RCCCh. 19 - What are the two types of hormones? How does each...Ch. 19 - Why is the anterior pituitary sometimes called the...Ch. 19 - Prob. 16RCCCh. 19 - Prob. 17RCCCh. 19 - Prob. 18RCCCh. 19 - How do sperm get past the zona pellucida that...Ch. 19 - Prob. 20RCCCh. 19 - Prob. 21RCCCh. 19 - Prob. 22RCCCh. 19 - How does a signal from a motor neuron result in...Ch. 19 - Prob. 24RCCCh. 19 - Prob. 25TISCh. 19 - Prob. 26TISCh. 19 - Prob. 27TISCh. 19 - What causes an action potential to travel down a...Ch. 19 - How does an electrical synapse work?Ch. 19 - Prob. 30TISCh. 19 - Why do action potentials travel more quickly down...Ch. 19 - Why havent any animals evolved large numbers of...Ch. 19 - Prob. 33TISCh. 19 - Prob. 34TISCh. 19 - Prob. 35TISCh. 19 - Prob. 36TISCh. 19 - What are the two types of light-sensitive cells in...Ch. 19 - Describe how sound waves enter the ear and...Ch. 19 - Prob. 39TISCh. 19 - Prob. 40TISCh. 19 - Prob. 43TCCh. 19 - The membrane potential is the electrical potential...Ch. 19 - Rank the two types of light-sensitive cells, rods...Ch. 19 - Two different types of neurons transmit pain...Ch. 19 - The human retina has an area of about 1000 mm2. If...Ch. 19 - You have about 1000 different kinds of smell...Ch. 19 - The egg is a large cell and contributes almost all...Ch. 19 - Is the brain a tissue, an organ, or an organ...Ch. 19 - The stomach is an organ. Describe some of the...Ch. 19 - Why do you shiver when you are cold?Ch. 19 - Prob. 53TECh. 19 - When you exercise, your cells use more oxygen and...Ch. 19 - This man is cooling off after an intense run. He...Ch. 19 - When you move your body, is your cerebrum in...Ch. 19 - Why is the surface of your brain wrinkled?Ch. 19 - Prob. 58TECh. 19 - Describe the structure of a typical neuron.Ch. 19 - Of the three types of neuronssensory neurons,...Ch. 19 - What happens during the fight or flight response?Ch. 19 - Is a neuron that slows your heartbeat part of the...Ch. 19 - What is an action potential? Describe how the...Ch. 19 - Prob. 64TECh. 19 - What would be the effect of removing the myelin...Ch. 19 - Prob. 66TECh. 19 - Prob. 67TECh. 19 - Why is Ohms law important to how quickly an action...Ch. 19 - Prob. 69TECh. 19 - Prob. 70TECh. 19 - Prob. 71TECh. 19 - Prob. 72TECh. 19 - Many nocturnal animals have only rods in their...Ch. 19 - Are your rods or cones are more important for...Ch. 19 - Prob. 75TECh. 19 - In some people, the bones of the middle ear...Ch. 19 - Prob. 77TECh. 19 - Prob. 78TECh. 19 - On a brilliant, sunny day, you take a long hike...Ch. 19 - Prob. 80TECh. 19 - Prob. 81TECh. 19 - Prob. 82TECh. 19 - Prob. 83TECh. 19 - Does a fertilized human egg make anything other...Ch. 19 - Prob. 85TECh. 19 - Prob. 86TECh. 19 - Prob. 87TECh. 19 - Prob. 88TECh. 19 - Prob. 89TECh. 19 - Prob. 90TDICh. 19 - Prob. 91TDICh. 19 - Prob. 92TDICh. 19 - If a signaling neuron has an excitatory effect on...Ch. 19 - Stars come in different colors depending on their...Ch. 19 - Prob. 95TDICh. 19 - Jet lag describes the fatigue and disorientation...Ch. 19 - Prob. 97TDICh. 19 - Prob. 98TDICh. 19 - Prob. 99TDICh. 19 - Explain what happens when you wiggle your toe....Ch. 19 - Prob. 1RATCh. 19 - Which of the following does NOT play a role in...Ch. 19 - Which part of the brain controls posture, balance,...Ch. 19 - Prob. 4RATCh. 19 - What happens at the start of an action potential?...Ch. 19 - Which of the following allows an action potential...Ch. 19 - Chemoreception characterizes a vision. b hearing....Ch. 19 - Prob. 8RATCh. 19 - The structure that provides oxygen and nutrients...Ch. 19 - Prob. 10RAT
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- 12. (a) Using Eq. AQ=CAV and the data in the Table, calculate the number of ions entering the axon during the action potential, per meter of nonmyelinated axon length. (The charge on the ion is 1.6 x 10-19 coulomb.) (b) During the resting state of the axon, typical concentrations of sodium and potassium ions inside the axon are 15 and 150 millimole/liter, respectively. From the data in the Table, calculate the number of ions per meter length of the axon. Table 13.1 Properties of Sample Axons Hint: 1 F (farad) = 1coulomb/1 volt Property Nonmyelinated axon Myelinated axon Axon radius 5 x 10-m 5 x 10-6 m 1 mole /liter = 6.02 x 1020 particles (ions, atoms, etc. ) Resistance per unit length of fluid cm 6.37 x 10°2/m 6.37 x 10°2/m both inside and outside axon (r) Conductivity per unit length of axon membrane (gm) 1.25 x 10-4 mho/m In the resting state, the axon voltage is -70mV. During the pulse, the voltage changes to about +30mV, resulting in a net voltage change across the membrane of 100…arrow_forwardPlease see question in attachment. Thanks!arrow_forwardHow much power does the neuron release?arrow_forward
- please helparrow_forwardAssume an axon has the same characteristics as the class example except the radius of the axon is 0.005 mm and the membrane thickness is 20.0 nm. The percentage fractional change in the concentration of Na+ ions in the axon during one action potential is %? Record the answer to the nearest one thousandth.arrow_forwardWhile you were cooking, you happened to touch a hot frying pan and immediately drew your hand swiftly away from the pan. Explain the pathway of the stimulus from the sensory or receptor organ until it reaches the spinal cord.arrow_forward
- Which of the following can cause a woman to become pregnant? (A) A male ejaculates sperm in or near the female's vagina. (B) The female experiences a menstrual cycle. (C) A male ejaculates his sperm during puberty. (D) The female ovulates until middle age.arrow_forwardQuestion 14arrow_forwardAssume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration 50.0 m/s x 0.0020 s = 0.10 m). In the %D resting state, the outer surface of the axon wall is charged positively with Kt ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = KƐ A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell -8 wall thickness d = 1.5 x 10 m, axon radius r = 2.0 x 10- um, and cell-wall dielectric constant K = 2.9. External fluid + Positive charge layer Axon wall membrane d Negative charge layer Internal fluid Axon radius = r (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-2 v.) 1.035E-9 Your response differs from the correct answer by more than 10%.…arrow_forward
- Question 7 50 40 40 Peak action potential Depolarization Repolarization 0.2/0.5 points Membrane potential (mV) 0 - Threshold of excitation -50 Initial stimulus -70 resting hyperpolarization resting return to resting -100 When are voltage gated Na+ channels closed (and inactivated)? The different ranges provided start at resting, go through an AP, and end at resting. (-70mV to -50mV) (-50mV to +40mV) (+40mV to -70mV) (-70mV to -80mV) (-80mV to -70mV)arrow_forwardAssume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration = 50.0 m/s x 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = K² A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 2.0 x 10-8 m, axon radius r = 1.6 x 10¹ μm, and cell-wall dielectric constant k = 2.9. Positive charge layer Negative charge layer External fluid Axon wall membrane Internal fluid - Axon radius= d -2 (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-² v.) 9.03E-10 C How many K+ ions are on the outside of the axon assuming an…arrow_forwardAssume a length of axon membrane of about 0.10 m is excited by an action potential (length excited = nerve speed x pulse duration = 50.0 m/s x 0.0020 s = 0.10 m). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative organic ions, as shown in the figure below. Model the axon as a parallel-plate capacitor and take C = KE A/d and Q = CAV to investigate the charge as follows. Use typical values for a cylindrical axon of cell wall thickness d = 1.8 x 10-8 m, axon radius r = 1.4 × 10¹ μm, and cell-wall dielectric constant x = 2.0. Positive charge layer Negative charge layer 1+ External fluid + + + Axon wall membrane + Internal fluid Axon radius = r + + + d + (a) Calculate the positive charge on the outside of a 0.10-m piece of axon when it is not conducting an electric pulse. (Assume an initial potential difference of 7.0 x 10-² V.) How many K+ ions are on the outside of the axon assuming…arrow_forward
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