WVSU Biology 120 Test 1

Flash Cards Made From Practice Test/study Guides From The Yahoo Group And Old Test. 
  
Created Feb 8, 2010
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vdianellos
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Side ASide B
Nucleolus of the nucleus is the site of A. protein synthesis. B. ribosome assembly. C....
B. ribosome assembly
Membrane-bound organelles that contain powerful enzymes found in cells are known as   A....
A. lysosomes
All of the following are examples of monomer: polymer pairings except    A. amino...
A. amino acids: polypeptides
Four of the following five choices are functions of carbohydrates. Select the exception.   A....
E. Glucose is a carbohydrate that is utilized by all life forms in the construction of nucleotides
Which of the following is not found in RNA?   A. adenine B. cytosine C. guanine...
?
Which of the following is not a component of nucleic acids? A. a five-carbon sugar B....
?
38. The information storage molecules of cells are called A. fatty acids. B. membrane...
?
Proteins possess all of the following functions except   A. structure. B. metabolism....
?
Functional groups found in amino acids include all of the following except   A....
?
27. A common lipid for energy storage is A. phospholipid. B. steroid. C. triglycerides....
C. triglycerides.
A type of transport of a solute across a membrane, up its concentration gradient, using...
?
The cell's transactions with the environment mediated by its plasma membrane include all...
?
Which of the following protein classes are not found as membrane proteins?   A....
?
Carrier-mediated transport is also called   A. facilitated diffusion. B. active...
?
Cell-walled organisms cannot carry out   A. exocytosis. B. active transport. C....
?
Cholesterol functions in the plasma membrane to   A. transport ions. B. serve...
?
As a scientist you perform an experiment in which you create an artificial cell with a selectively...
?
If you were to replace the phosphate group of a phospholipid with a fatty acid chain, you...
?
If you were a very thirsty cell, which process would you use to take in some nutrients secreted...
?
Small cells function more effectively, because as cells become larger their surface area...
?
Which of the following associations is unlike the others?   A. histone—nucleosome...
?
Organisms are composed of molecules, which are collections of smaller units, called A....
B. atoms.
Negatively charged particles of atoms with almost no mass are called   A. electrons....
A. electrons.
Elements that have atoms with the same atomic numbers but different number of neutrons are...
E. isotopes.
In chemical reactions, the gain of an electron is called A. oxidation. B. reduction....
B. reduction.
When atoms gain or lose electrons, they become negatively or positively charged. They are...
C. ions.
The atomic number of an element is equal to the number of A. protons only. B. neutrons...
A. protons only.
Ordinary oxygen has an atomic mass of 16 and an atomic number of 8. This means that the...
B. 8
Which of the following statements about orbitals is false? A. They correlate with the...
A. They correlate with the number of protons in the nucleus.
Regardless of its shape, a given orbital may contain no more than A. 1 electron. B....
D. 2 electrons.
Two carbon atoms might be joined to each other by the sharing of two pairs of electrons,...
?
Because oxygen is more electronegative than hydrogen, the water molecule is A. hydrophobic....
E. polar.
Water molecules are attracted to each other because of the opposite charges created by partial...
D. hydrogen bonds.
T or F, polar substances are difficult to dissolve in water?
False
Nitrogen is an important component of lipid molecules, true or false?
False
Once a hypothesis has been proven it is considered a theory, t or f?
False
Bacterial species are characterized by a diversity of organelles, t or f?
False
T or F, polypeptide chains are made in the golgi?
False.
Ideally, a treatment should only vary in one thing?
True
Heredity control is achieved in the nucleus?
True
Key chemical bonds for salts are chemical in nature?
False
All of the organisms found on Earth, regardless of the strange and exotic plants in which they...
A. Biodiversity
What is a theory in biology? A. an educated guess B. similar to a hypothesis C. a systematically=organized...
C. a systematically=organized body of knowledge
To eliminate alternative explanations, a good experiment must include ___________ A. treatment B....
D. control
Elements required in large amounts to sustain life are called: A. bulk elements B. atoms C....
A. bulk elements
The charge of a proton is postive and the charge of an electron is negative, t or f?
True
The function of the golgi apparatus is to _____ A. degrade and recycle dead and worn-out cell...
C. process and modify specific proteins
Isotopes of an element vary in the number of A. protons B. electrons C. neutrons D....
C. neutrons
The number of valence shell (outermost) electrons determines ____________. A. atom's reactive...
D. all of these are correct
Chemical bonds in which there is a sharing of electrons are called _________ A. covalent bonds B....
A. covalent bonds
Substances that resist large changes in pH are called? A. acids B. buffers C. bases D....
B. buffers
Which of the following would explain why lipids to not typically dissolve in water? A. the...
D. the lipid molecules are non-polar
Which of the following has a balanced number of protons and electrons? A. NaCl B. H+ C....
A. NaCl
Which of the following bonds is hardest to break? 1. Ionic 2. Hydrogen 3. Covalent 4. Isotopic
3. Covalent
The building blocks, or monomers, of the larger carbohydrates such as starch are ____________ 1....
4. Monosaccharides
Which of these molecules is not a lipid? A. sterol B. wax C. triglyceride D. chitin
D. chitin
Special proteins responsible for catalyzing reactions in the cell are called _________ A....
C. enzymes
The variable portion of an amino acid is its? A. amino group B. R group C. carboxyl group D....
C. carboxyl group
The nucleotide found in RNA but not DNA is? A. thymine B. adenine C. uracil D. cytosine
C. uracil
Which of these following molecules would be most likely to be found floating on top of a drop...
d. cholesterol
Which of the following are in the correct size order (largest to smallest)? A. carbon atom,...
B. chromosome, DNA, nucleotide, carbon atom


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