A. Breaks down larger food molecules into smaller unit
Anabolism
ones
E. Key reaction during anabolism
A. Joins simple molecules together to form more complex ones
ATP
ones
E. Key reaction during anabolism
A. The form of energy that cells generally use
Metabolism
ones
E. Key reaction during anabolism
B. All the chemical reactions that occur in body cells
Dehydration Synthesis
A. Breaks down larger food molecules into smaller units
B. The form of energy that cells generally use
C. All the chemical reactions that occur in body cells
D. Joins simple molecules together to form more complex
ones
E. Key reaction during anabolism
E. Key reaction during anabolism
Water plays a key role in such processes as:
A. Cell permeability C. Secretion
B. Active transport of materials D. All of the above
D. All of the above
Which of the following is NOT a property of water?
A. Strong polarity C. High heat of vaporization
B. High specific heat D. Strong acidity
D. Strong acidity
Acids:
B. Release hydrogen ions when in an aqueous solution
Substances that accept hydrogen ions are referred to as:
A. Acids C. Buffers
B. Bases D. Salts
B. Bases
The constancy of the pH homeostatic mechanism is caused by the presence of substances
called:
A. Salts C. Buffers
B. Bases D. Acids
C. Buffers
True or False
The pH scale indicates the degree of acidity or alkalinity of a solution
True
True or False
Milk is acid on the pH scale
True
True or False
Litmus will turn red in the presences of an acid.
True
True or False
The basic substance of each cell is water
True
True or False
Oxygen and carbon dioxide are examples of organic compounds.
False
Which of the following in NOT a type of carbohydrate?
A. Monosaccharides C. Megasaccharides
B. Disaccharides D. Polysaccharides
C. Megasaccharides
Which of the following is INCORRECT in reference to carbohydrates?
C. They are replete with nitrogen atoms
Proteins are composed of ______ commonly occurring amino acids.
A. 8 C. 20
B. 12 D. 24
C. 20
Amino acids frequently become joined by:
A. Peptide bonds C. Degradation synthesis
B. Phospholipid reactions D. None of the above
A. Peptide bonds
Which of the following is NOT an example of proteins?
A. Hormones C. Urine
B. Antibodies D. Enzymes
C. Urine
A structural lipid found in a cell membrane is:
A. Triglyceride C. Steroid
B. Phospholipids D. Prostaglandin
B. Phospholipids
Which of the following is the correct example of DNA base pairing?
A. Adenine-Cytosine C. Adenine-Thymine
B. Guanine- Adenine D. Guanine- Thymine
C. Adenine-Thymine
A DNA molecule contains each of the following EXCEPT:
A. Sugar C. Phosphate
B. Nitrogenous base D. Lipid
D. Lipid
DNA differs from RNA in that:
C. RNA contains ribose instead of deoxyribose
True or False
Steroids are poorly distributed throughout the body.
False
True or False
High-density lipoprotein (HDL) is also called the “good” cholesterol.
True
True or False
Protein compounds have no role in defending the body against harmful agents.
False
True or False
The nonessential amino acids can be produced from the other amino acids or from
simple organic molecules.
True
True or False
Enzymes are proteins that function by the “lock and key” model.
True
True or False
Prostaglandins are “tissue hormones
True
Atoms of the same element but with different atomic weights
(because their nuclei contain different numbers of neutrons).
G. Isotopes
Adenine-thymine and guanine-cytosine are examples of ___
present in DNA.
A. Base pairs
Atoms with fewer than eight electrons in their valence shell will
attempt to lose, gain, or share electrons with other atoms to achieve
stability
I. Octet rule
The number of protons in an atom’s nucleus.
I. Atomic number
Any large molecule made up of many identical small molecules
C. Polymers
Components of DNA and RNA that are composed of sugar, a
nitrogenous base, and a phosphate group.
D. Nucleotide
Chemical property that allows water to act as a effective solvent.
F. Polarity
Large group of inorganic compounds including acids, bases, and
salts.
E. Electrolyte
Ribose
C. Carbohydrate
Steroids
B. Lipid
Amino Acid
A. Protein
Glycerol
B. Lipid
Monosaccharides
C. Carbohydrate
Phospholipids
B. Lipid
Enzymes
A. Protein
Litmus turns blue
A. Acid
B. Base
B. Base
"Proton donor"
A. Acid
B. Base
A. Acid
Bitter Taste
A. Acid
B. Base
B. Base
"Proton acceptor"
A. Acid
B. Base
B. Base
Releases a hyrdrogen ion
A. Acid
B. Base
A. Acid
Author
dezkwondo
ID
29241
Card Set
Ch. 2 Chemical Basis of Life Metabolism and Molecules