25 Questions
In an oil-in-water emulsion, which is the dispersed phase?
Oil
What term should be used when both phases in a colloidal system are liquids?
Emulsion
What is an emulsion?
A mixture of two or more immiscible liquids
What type of structure do emulsions exhibit?
They do not exhibit a static internal structure
What are some examples of emulsions?
Vinaigrettes, homogenized milk, liquid biomolecular condensates
What is the difference between an emulsion and a colloid?
An emulsion should be used when both phases, dispersed and continuous, are liquids, while colloids are a more general class of two-phase systems of matter.
What are the two types of emulsions formed by oil and water?
Oil and water can form an oil-in-water emulsion, with the oil as the dispersed phase, and water as the continuous phase, and a water-in-oil emulsion, with water as the dispersed phase and oil as the continuous phase.
What is the term used to refer to the photo-sensitive side of photographic film?
The term "emulsion" is used to refer to the photo-sensitive side of photographic film.
What are some examples of multiple emulsions?
Multiple emulsions include a "water-in-oil-in-water" emulsion and an "oil-in-water-in-oil" emulsion.
What are some examples of products that are emulsions?
Examples of emulsions include vinaigrettes, homogenized milk, liquid biomolecular condensates, and some cutting fluids for metal working.
What is the dispersed phase in a water-in-oil emulsion?
Water
Which type of emulsion includes a 'water-in-oil-in-water' configuration?
Multiple emulsions
What type of structure do emulsions exhibit?
Static internal structure
Which term refers to the photo-sensitive side of photographic film?
Emulsion
What are some examples of products that are emulsions?
Honey and butter
What is the function of the peripheral nervous system?
Transmitting signals between the central nervous system and the rest of the body, and coordinating the body's response to stimuli.
What are the two main divisions of the peripheral nervous system?
Somatic and autonomic nervous systems.
What is the role of sensory receptors in the peripheral nervous system?
They detect various stimuli such as touch, pressure, temperature, pain, and sound.
Where does the neuromuscular junction occur?
It occurs where a motor neuron's axon terminates and releases neurotransmitters to activate receptors on muscle fibers.
What are peripheral nerves made up of?
Nerve fibers, which are long, thin extensions of nerve cells.
What are the three main functions of the Peripheral Nervous System?
Sensory function, motor function, autonomic function
Give an example of a disorder that affects the roots of the peripheral nerves.
Radiculopathies
What are some symptoms of peripheral neuropathies?
Weakness, numbness, pain
What process does the autonomic function of the PNS regulate?
Regulates the functioning of internal organs and glands
What is responsible for the rapid, automatic responses to stimuli, such as withdrawing the hand from a hot surface?
Reflex Arc
Test your knowledge about emulsions, which are mixtures of two or more liquids that are normally immiscible. Learn about the dispersed and continuous phases in emulsions and how they are part of the broader class of colloids.
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