BIO 121 Final Exam-Montgomery County Community
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In 6C6H12O6 there are ________ oxygen atoms? - (ANSWERS)36
The molecular mass of Na2CO3 is... - (ANSWERS)106
In the equation 2H2 + 02 ---> 2H2O....
A. H2, O2, and H2O are all compounds
B. H2, O2, and H2O are all elements
C. Only H2 and O2 are compounds
D. Only H2O is a compound - (ANSWERS)D. Only H2O is a compound
The tendency of water molecules to stick with another molecule other than water
is.... - (ANSWERS)Adhesion
Which is less dense, solid water or liquid water? - (ANSWERS)Liquid water-the
molecules can fit closer together because they are breaking and reforming, unlike ice
molecules
Ph of 3 is how many times more acidic than ph of 6? - (ANSWERS)1000x more
Covalent Bonds - (ANSWERS)share electrons
Ionic Bonds - (ANSWERS)accept electrons
What does the body NOT break down for energy? - (ANSWERS)RNA
3 most common atoms in our body - (ANSWERS)hydrogen, oxygen, and carbon
Which of the following contains a carboxyl group and an amino group?
A. Amino acid
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B. Fat
C. Sugar
D. Vinegar - (ANSWERS)A. Amino acid
Which of the following statements about dehydration synthesis (condensation) is
FALSE?
A. One monomer loses hydrogen atoms, other hydroxyl group
B. H2O is formed as the monomers are joined
C. Covalent bonds are formed between monomers
D. Animal digestive systems utilize to break down food - (ANSWERS)D. Animal
digestive systems utilize to break down food
An oil may be converted into a substance that is solid at room temperature by -
(ANSWERS)adding hydrogen, decreasing the number of double bonds in molecules
Fatty acids with double bonds between some of their carbons are said to be -
(ANSWERS)unsaturated
Primary structure of a protein is - (ANSWERS)the amino acid sequence of the
polypeptide chain
Which of the following are false about nucleotides?
A. Nucleotides contain lipids
B. Nucleotides contain sugar molecules
C. Nucleotides can be linked together to form nucleic acids
D. Nucleotides contain nitrogenous bases - (ANSWERS)A. Nucleotides contain
lipids
A molecule with the formula C18H32O16 is a - (ANSWERS)polypeptide
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Monosaccharides ratio - (ANSWERS)1:2:1
Ex. Glucose C6H12O2
Isomers are - (ANSWERS)molecules that have the same molecular formula
Disaccharide are - (ANSWERS)2 monosaccharides together with condensation
reaction (H2O is taken out)
Hydrolysis reaction is - (ANSWERS)adding water
Polysaccharides are - (ANSWERS)Disaccharides + monosaccharides
Also hydrophilic
Nucleoid region of prokaryotic cell - (ANSWERS)contains the cells of DNA
Function of nucleoulus is... - (ANSWERS)to manufacture ribosomal RNA
Which location in the cell is UNLIKELY to contain ribosomes or ribosomal units? -
(ANSWERS)Plasma membrane
Order in which insulin passes through from its production to its exit from the cell -
(ANSWERS)Rough ER, transport vesicles, golgi apparatus, transport vesicles, cell
membrane
Gap Junctions - (ANSWERS)connect cytoplasm of 2 cells and allows molecules,
ions, and electric impulses
Tight Juntctions - (ANSWERS)Prevents cell leakage
Anchoring Junctions - (ANSWERS)Proteins fasten cells together
College With Complete Questions And Correct Answers
In 6C6H12O6 there are ________ oxygen atoms? - (ANSWERS)36
The molecular mass of Na2CO3 is... - (ANSWERS)106
In the equation 2H2 + 02 ---> 2H2O....
A. H2, O2, and H2O are all compounds
B. H2, O2, and H2O are all elements
C. Only H2 and O2 are compounds
D. Only H2O is a compound - (ANSWERS)D. Only H2O is a compound
The tendency of water molecules to stick with another molecule other than water
is.... - (ANSWERS)Adhesion
Which is less dense, solid water or liquid water? - (ANSWERS)Liquid water-the
molecules can fit closer together because they are breaking and reforming, unlike ice
molecules
Ph of 3 is how many times more acidic than ph of 6? - (ANSWERS)1000x more
Covalent Bonds - (ANSWERS)share electrons
Ionic Bonds - (ANSWERS)accept electrons
What does the body NOT break down for energy? - (ANSWERS)RNA
3 most common atoms in our body - (ANSWERS)hydrogen, oxygen, and carbon
Which of the following contains a carboxyl group and an amino group?
A. Amino acid
, BIO 121 Final Exam-Montgomery County Community
College With Complete Questions And Correct Answers
B. Fat
C. Sugar
D. Vinegar - (ANSWERS)A. Amino acid
Which of the following statements about dehydration synthesis (condensation) is
FALSE?
A. One monomer loses hydrogen atoms, other hydroxyl group
B. H2O is formed as the monomers are joined
C. Covalent bonds are formed between monomers
D. Animal digestive systems utilize to break down food - (ANSWERS)D. Animal
digestive systems utilize to break down food
An oil may be converted into a substance that is solid at room temperature by -
(ANSWERS)adding hydrogen, decreasing the number of double bonds in molecules
Fatty acids with double bonds between some of their carbons are said to be -
(ANSWERS)unsaturated
Primary structure of a protein is - (ANSWERS)the amino acid sequence of the
polypeptide chain
Which of the following are false about nucleotides?
A. Nucleotides contain lipids
B. Nucleotides contain sugar molecules
C. Nucleotides can be linked together to form nucleic acids
D. Nucleotides contain nitrogenous bases - (ANSWERS)A. Nucleotides contain
lipids
A molecule with the formula C18H32O16 is a - (ANSWERS)polypeptide
, BIO 121 Final Exam-Montgomery County Community
College With Complete Questions And Correct Answers
Monosaccharides ratio - (ANSWERS)1:2:1
Ex. Glucose C6H12O2
Isomers are - (ANSWERS)molecules that have the same molecular formula
Disaccharide are - (ANSWERS)2 monosaccharides together with condensation
reaction (H2O is taken out)
Hydrolysis reaction is - (ANSWERS)adding water
Polysaccharides are - (ANSWERS)Disaccharides + monosaccharides
Also hydrophilic
Nucleoid region of prokaryotic cell - (ANSWERS)contains the cells of DNA
Function of nucleoulus is... - (ANSWERS)to manufacture ribosomal RNA
Which location in the cell is UNLIKELY to contain ribosomes or ribosomal units? -
(ANSWERS)Plasma membrane
Order in which insulin passes through from its production to its exit from the cell -
(ANSWERS)Rough ER, transport vesicles, golgi apparatus, transport vesicles, cell
membrane
Gap Junctions - (ANSWERS)connect cytoplasm of 2 cells and allows molecules,
ions, and electric impulses
Tight Juntctions - (ANSWERS)Prevents cell leakage
Anchoring Junctions - (ANSWERS)Proteins fasten cells together
