31 Questions
Which type of chemical bond is formed through the sharing of electrons?
Covalent bond
What is the term for the attractive force between oppositely charged ions in a chemical bond?
Electrostatic force
Which theory includes orbital hybridization and resonance to describe chemical bonding?
Valence bond theory
Which type of chemical bond involves the transfer of electrons from one atom to another?
Ionic bond
What is the result of a covalent bond between atoms?
Formation of molecules
Which type of bond is an extreme example of delocalization of electrons over a large system of covalent bonds?
Metallic bond
What gives organic molecular substances their soft bulk character and low melting points?
Covalent bonds
Which type of bonding is responsible for the malleability and electrical conductivity of metals?
Metallic bonding
Who proposed the theory of chemical combination stressing the electronegative and electropositive characters of the combining atoms?
Jöns Jakob Berzelius
What did Ernest Rutherford's 1911 discovery reveal about the nature of the atom?
Atoms are composed of a nucleus surrounded by electrons
Who developed the concept of electron-pair bonds, in which two atoms may share one to six electrons?
Gilbert N. Lewis
Which part of the nervous system consists of the brain and spinal cord?
Central nervous system
What is the main function of the autonomic nervous system?
Respond to emergencies
Which type of nerves transmit signals from the brain?
Motor nerves
What is the function of the enteric nervous system?
Control the gastrointestinal system
Which subsystem of the autonomic nervous system is activated when organisms are in a relaxed state?
Parasympathetic nervous system
What are nerves that exit from the cranium called?
Cranial nerves
Which type of cell is responsible for sending signals in the form of electrochemical impulses to other cells?
Neurons
What are the thin fibers along which electrochemical impulses travel in neurons called?
Axons
Which type of synapse involves the direct transmission of electrochemical impulses to neighboring cells?
Electrical synapses
What are the specialized cells in the nervous system that provide structural and metabolic support called?
Glia
Which organisms have no nervous system at all?
Sponges
What is the medical specialty that studies disorders of the nervous system?
Neurology
Which type of cell in the nervous system is responsible for support and nutrition, as well as signal transmission?
Glial cells
In which type of animals does the nervous system consist of a nerve net, a diffuse network of isolated cells?
Radially symmetric animals
What is the function of synapses in neurons?
To transmit chemical signals
Which type of cell in the nervous system generates layers of myelin that provide electrical insulation?
Glial cells
What is the major division of the vertebrate nervous system that consists of the brain and the spinal cord?
Central nervous system
What is the tough, leathery outer layer that encloses and protects the central nervous system called?
Dura mater
What is the collective term for the nervous system structures that do not lie within the central nervous system?
Peripheral nervous system
Which type of cell in the nervous system serves as important resident immune cells within the central nervous system?
Glial cells
Test your knowledge of chemical bonds with this quiz! Explore different types of bonds, including ionic and covalent bonds, and learn about the strength and formation of these essential connections between atoms and ions. Challenge yourself with questions on bond properties, structures, and more.
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