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Week 2

Chemistry of life

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



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