BIO 121 Final Exam Questions And Already Passed Answers.
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Course
BIO 121
Institution
BIO 121
In 6C6H12O6 there are ________ oxygen atoms? - Answer 36
The molecular mass of Na2CO3 is... - Answer 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 - A...
BIO 121 Final Exam Questions And
Already Passed Answers.
In 6C6H12O6 there are ________ oxygen atoms? - Answer 36
The molecular mass of Na2CO3 is... - Answer 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 - Answer D. Only H2O is a compound
The tendency of water molecules to stick with another molecule other than water is.... - Answer
Adhesion
Which is less dense, solid water or liquid water? - Answer 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? - Answer 1000x more
Covalent Bonds - Answer share electrons
Ionic Bonds - Answer accept electrons
What does the body NOT break down for energy? - Answer RNA
,3 most common atoms in our body - Answer hydrogen, oxygen, and carbon
Which of the following contains a carboxyl group and an amino group?
A. Amino acid
B. Fat
C. Sugar
D. Vinegar - Answer 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 - Answer D. Animal digestive systems utilize to
break down food
An oil may be converted into a substance that is solid at room temperature by - Answer adding
hydrogen, decreasing the number of double bonds in molecules
Fatty acids with double bonds between some of their carbons are said to be - Answer unsaturated
Primary structure of a protein is - Answer 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 - Answer A. Nucleotides contain lipids
A molecule with the formula C18H32O16 is a - Answer polypeptide
, Monosaccharides ratio - Answer 1:2:1
Ex. Glucose C6H12O2
Isomers are - Answer molecules that have the same molecular formula
Disaccharide are - Answer 2 monosaccharides together with condensation reaction (H2O is taken out)
Hydrolysis reaction is - Answer adding water
Polysaccharides are - Answer Disaccharides + monosaccharides
also hydrophilic
Nucleoid region of prokaryotic cell - Answer contains the cells of DNA
Function of nucleoulus is... - Answer to manufacture ribosomal RNA
Which location in the cell is UNLIKELY to contain ribosomes or ribosomal units? - Answer Plasma
membrane
Order in which insulin passes through from its production to its exit from the cell - Answer Rough ER,
transport vesicles, golgi apparatus, transport vesicles, cell membrane
Gap Junctions - Answer connect cytoplasm of 2 cells and allows molecules, ions, and electric impulses
Tight Juntctions - Answer Prevents cell leakage
Anchoring Junctions - Answer Proteins fasten cells together
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