nightingale college anatomy week2
A magnesium atom has an atomic number of 12, an atomic mass of 25, and a +2 charge. This atom would contain _____ protons, _____ neutrons, and _____ electrons. Answer : 12; 13; 10
12: 13:10
Carbon has an atomic number of 6. The number of electrons found in the first shell is: 2
2
The approximate pH of gastric fluid is
2
The atomic number of carbon is 6. How many unpaired electrons are in its outer shell?
4
Approximately what percentage of the body weight of an adult female is water?
50%
Which of the following represents properties of water?
High specific heat High heat of vaporization Strong polarity Answer : All of the above
An example of an element would be:
Ne
An ionic bond is formed by
a positive and a negative ion attracting each other.
A solution that contains a greater concentration of hydroxide ions (OH-) than hydrogen ions (H+) is a(n) _____ solution
alkaline (basic)
The study of metabolism includes examination of?
all of the above
Acids
are proton donors. taste sour. release hydrogen ions in an aqueous solution. Answer : All of the above are true of acids.
Substances that accept hydrogen ions are called
base
The study of metabolism includes examination of
catabolism anabolism. ATP requirements. Answer : all of the above.
The process of the digestion of food is an example of which type of reaction?
decomposition
The formation of sucrose involves the removal of a molecule of water. This is called
dehydration synthesis
When atoms combine, they may gain, lose, or share
electrons
A negatively charged subatomic particle that moves around the nucleus is a(n)
eletrons
AB + CD → AD + CB is an example of a(n) _____ reaction.
exchange
Which of the following elements is least likely to combine with another element?
helium
Which of the following bonds are the weakest?
hydrogen
A example of a catabolic process is
hydrolysis
An example of a catabolic process is
hydrolysis
solution becomes more 30. Which of the following represents a trace element in the body?
iron
An isotope of an element contains different numbers of ____ from other atoms of the same element:
neutrons
The hydrogen isotope tritium consists of
one proton and two neutrons.
The kind of element is determined by the number of
protons
Atomic mass is determined by the number of
protons and neutrons.
As the concentration of hydrogen ions (H+) increases, the
solution becomes more acidic
The octet rule refers to the
stability of the atom when there are eight electrons in the outermost energy level.
The type of reaction in which substances are combined to form more complex substances is called a(n) _____ reaction
synthesis
In the presence of a base, red litmus paper will
trun blue
The most abundant and important compound(s) in the body is(are):
water
Which of the following is not one of the major elements present in the human body?
zinc
