Neuroscience I Structurefunctionand Evolution Of Nervous Systems - Principles of Biology | Biology+

Course

Introductory Biology

Study Pack

Set 1: An Introduction to Biology

Set 2: The Chemical Basis of Life I: Atoms, Molecules, and Water

Set 3: The Chemical Basis of Life II: Organic Molecules

Set 4: General Features of Cells

Set 5: Membrane Structure, Transport, and Cell Junctions

Set 6: Energy, Enzymes, and Cellular Respiration

Set 7: Photosynthesis

Set 8: Cell Communication

Set 9: Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Set 10: Gene Expression at the Molecular Level

Set 11: Gene Regulation

Set 12: Mutation, DNA Repair, and Cancer

Set 13: The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Set 14: Patterns of Inheritance

Set 15: Genetics of Viruses and Bacteria

Set 16: Genetic Technology

Set 17: Genomes, Repetitive Sequences, and Bioinformatics

Set 18: Origin and History of Life

Set 19: An Introduction to Evolution and Population Genetics

Set 20: Origin of Species and Macroevolution

Set 21: Taxonomy and Systematics

Set 22: Microorganisms: The Archaea, Bacteria, and Protists

Set 25: Animal Diversity: Invertebrates

Set 26: Animal Diversity: Vertebrates

Set 27: An Introduction to Flowering Plant Form and Function

Set 28: Flowering Plants: Plant Behavior

Set 29: Flowering Plants: Nutrition and Transport

Set 30: Flowering Plants: Reproduction

Set 31: Animal Bodies and Homeostasis

Set 32: Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Set 33: Neuroscience II: Sensory Systems

Set 34: Muscular-Skeletal Systems

Set 35: Digestive Systems and Nutrition

Set 36: Circulatory Systems

Set 37: Respiratory Systems

Set 38: Excretory Systems and the Homeostasis of Internal Fluids

Set 39: Endocrine Systems

Set 40: Animal Reproduction and Development

Set 41: Immune Systems

Set 42: Animal Behavior

Set 43: Ecology and the Physical Environment

Set 44: Population Ecology

Set 45: Community Ecology

Set 46: Ecosystem Ecology

Set 47: Biodiversity and Conservation Biology

Set 32 Neuroscience I Structurefunctionand Evolution Of Nervous Systems

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Set 32 Neuroscience I Structurefunctionand Evolution Of Nervous Systems

(Multiple Choice)

Free

Compare the leakage rates of sodium and potassium into and out of a neuron at rest.How is the relationship between these rates best described?

A)Leakage of sodium ions out of the neuron is greater than leakage of potassium ions into the neuron.
B)Leakage of sodium ions into the neuron is greater than leakage of potassium ions out of the neuron.
C)Leakage of potassium ions out of the neuron is greater than leakage of sodium ions into the neuron.
D)Leakage of potassium ions into the neuron is greater than leakage of sodium ions out of the neuron.
E)Leakage of potassium ions out of the neuron is equivalent to leakage of sodium ions into the neuron.

Answer

(Multiple Choice)

Free

When the cell is NOT sending signals,the electrical difference between the inside and outside of a neuronal membrane is specifically referred to as the

A)action potential.
B)graded potential.
C)resting potential.
D)membrane potential.
E)reversal potential.

Answer

(Multiple Choice)

Free

Multiple sclerosis (MS) is a progressive inflammatory disease of the central nervous system characterized by intermittent damage to myelin (called demyelination) caused by the destruction of specialized cells (oligodendrocytes) that form the substance.
Given what you know about the function of myelin, predict the consequences associated with its progressive loss.

A) Sensory abnormalities (e.g., tingling, numbness, itching, tightness, burning, shooting pain) and motor coordination loss.
B) Racing heartbeat, hyperactivity and nausea.
C) Low levels of potassium in the blood (hypokalemia).
D) Balance and equilibrium abnormalities (e.g., dizziness, vertigo, uncoordinated movements, tremor).

Answer