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Barron's ASVAB flash cards by Terry L. Duran 1/9 subjects 55/400 cards #'s 1-55
Terms in this set (55)
The function of an enzyme is to
Speed up a chemical reaction
A one-kilogram mass is dropped from a height of 1 meter. Its kinetic energy just before it hits the ground is about
The DNA of a cell is found mainly in its
Most cells without a cell wall also lack
The cells that can easily be scraped from the lining of the mouth make up
The end product of protein digestion consists of
Blood circulation from the lungs goes directly to the
The glucose content of the blood is regulated by
Insulin and adrenaline
The ocean current that extends from Florida across the Atlantic Ocean to Europe is
the Gulf Stream
The member of the solar system with the shortest period of solar revolution is
The type of meteorological system with the highest velocity winds is the
A 120 volt electrical power supply produces two amperes to the load. The power delivered is
Frictional forces usually do NOT
Increase potential energy
A magnifying glass is what kind of lens used on objects how far away?
Convex lens used closer than one focal length
The mass of one cubic meter of water is approximately
A magnetic compass points in the direction of
The local magnetic field
The half-life of iodine-131 (I-131 for short) is 8 days. Approximately how long would it take for 16 milligrams of I-131 to decay to a half milligram of I-131?
A gaseous product of the fermentation of sugar is
Nitrates can be very useful as
The number of atoms in a molecule of CuSO4 5H2O is
Which substance can be used to treat drinking water of questionable purity?
A viral infection in humans characterized by a very long time between the initial exposure and the exhibition of the symptoms is
The beneficial relationship between termites and the protozoa that inhabit their digestive systems is called
Erosion and depletion are problems associated with
The particle with a ___ charge in the nucleus of an atom is a(n) ___
The four forces that act on an aircraft in flight are
lift, gravity, thrust, and drag
Electrons have a ___ charge
identify and neutralize foreign objects inside the body
A gamete is a cell that
fuses with another gamete during fertilization
What is the smallest part of matter that retains the chemical properties characteristic of a particular element?
The average distance of the Earth from the sun is about
93 million miles
Humans have ___ pairs of chromosomes
What is the scientific study of human culture called?
What are the five major layers of Earth's atmosphere, in order from the Earth's surface upward
troposphere, stratosphere, mesosphere, thermosphere, exosphere
Which of the following is not usually a gas at room temperature?
A substance that speeds up a chemical reaction is a(n)
What type of blood vessel carries blood from the other parts of the body to the heart?
Which is the correct sequence of objects in the solar system, moving outward from the sun?
Mars, asteroid belt, Jupiter, Saturn, Uranus
A person's appearance resulting from his or her genetic makeup is called the person's
When a plant performs photosynthesis, it produces ___ as a by-product
The speed of light in a vacuum is about
186,000 miles per second
When atoms and molecules pass thermal energy by direct contrast, it is known as
The basic unit of heat is the calorie, which is the amount of heat needed to
Raise the temperature of 1 gram of water 1 degree Celsius
The temperature of the atmosphere falls during the nighttime hours because
The side of the earth not facing the sun loses heat by radiation
The number of protons in an atom's nucleus determines its
Kwashiorkor would probably be caused by a diet deficient in
Meat, eggs, and dairy products
A vibrating tuning fork, placed in a vacuum under a bell jar, will
What are examples of human diseases caused by bacteria?
Cancer, tuberculosis, and plague
The "twinkling" of stars in the night sky is caused by
Variations in the Earth's atmosphere
When an airplane is in flight, the air pressure on the bottom surface of the wing is
More than on the top surface
An amphibian can best be described as
A cold-blooded, smooth-skinned vertebrate capable of living both on land and in water
The most accurate description of the earth's atmosphere is that it is comprised of
21% oxygen, 78% nitrogen, .03% carbon dioxide, trace amounts of rare gases, water vapor, and some dust particles
The apogee of an orbiting object refers to
The point in an orbit that is furthest from the body being orbited
The reaction between sodium, metal, and water can be classified as
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