BMS 300 EXAM 1 QUESTIONS WITH VERIFIED
ACCURATE ANSWERS
Water has a dipole moment because: - Answers - Oxygen is more electronegative and
pulls electrons from hydrogen
An amphipathic molecule, like soap, can interact with: - Answers - Water and Lipids
Which of the following contributes to the surface tension of water? - Answers - -Water
molecules experience forces from all directions
-Water molecules at the air-water interface experiences sideward and downward forces
-Water molecules are in constant motion
Ice floats because: - Answers - -Ice is less dense
-The crystallized structure of ice is well organized
Two solutions are separated by a membrane that contains channels only permeable to
water. The solution in the left-hand compartment contains 30 millimolar NaCl which
dissociates completely, and the right hand compartment contains 30 millimolar glucose
which does not dissociate. Which of the following statements is correct? - Answers -
Water will move from the right side to the left side
Which of the following is the most stable form phospholipids can exist in naturally? -
Answers - Liposome
The portion of an amino acid that differentiates one amino acid from another is the
_____. - Answers - R-Group
The primary structure of proteins is the sequence of amino acids that are connected to
one another by ______ bonds. - Answers - -Covalent Bond
-Peptide Bond
Examples of proteins include: - Answers - -Receptors
-Enzymes
-Hormones
-Transmembrane Channels
Cleaving one phosphate group off of which of the following molecules will provide the
most energy? - Answers - ATP (adenosine triphosphate)
Glycolysis - Answers - Breakdown of a 6-carbon glucose to a two 3-carbon pyruvate
molecules
, Citric Acid Cycle - Answers - Uses acetyl CoA to make GTP and release high energy
electrons
Electron Transport Chain - Answers - Uses high energy electrons to power the
production of ATP
Beta-oxidation - Answers - Breakdown of fatty acids to make acetyl CoA
Which of the following can be used for energy by the human body? - Answers - -
Carbohydrates
-Lipids
-Creatine Phosphate
-Amino Acids
If your RQ was measured at 0.70, which fuel are you primarily burning for energy? -
Answers - Lipids
Which of the following are found in eukaryotic cells, but not prokaryotic cells? - Answers
- Mitochondria
DNA is organized and packaged within the nucleus. In order to read and copy DNA, it
must be partially unwound into a structure called: - Answers - Euchromatin
Identical twins have the same exact DNA in all of their cells. Which of the following
factors can explain differences in gene expression between them? - Answers - -Rates of
gene expression
-Histone acetylation levels
-DNA methylation levels
-Environmental factors
You would expect that the sugars modified in the Golgi apparatus would have initially
been covalently linked to amino acids in the: - Answers - Endoplasmic Reticulum
Who do you share mitochondrial DNA with? - Answers - Mother
What type of bond holds the two separate DNA strands together? - Answers - Hydrogen
Bonds
DNA polymerase reads the template strand in the ___________ direction. - Answers - 3'
to 5'
In DNA replication, the enzyme responsible for selecting the appropriate base, and
forming the phosphodiester bond is: - Answers - DNA Polymerase
ACCURATE ANSWERS
Water has a dipole moment because: - Answers - Oxygen is more electronegative and
pulls electrons from hydrogen
An amphipathic molecule, like soap, can interact with: - Answers - Water and Lipids
Which of the following contributes to the surface tension of water? - Answers - -Water
molecules experience forces from all directions
-Water molecules at the air-water interface experiences sideward and downward forces
-Water molecules are in constant motion
Ice floats because: - Answers - -Ice is less dense
-The crystallized structure of ice is well organized
Two solutions are separated by a membrane that contains channels only permeable to
water. The solution in the left-hand compartment contains 30 millimolar NaCl which
dissociates completely, and the right hand compartment contains 30 millimolar glucose
which does not dissociate. Which of the following statements is correct? - Answers -
Water will move from the right side to the left side
Which of the following is the most stable form phospholipids can exist in naturally? -
Answers - Liposome
The portion of an amino acid that differentiates one amino acid from another is the
_____. - Answers - R-Group
The primary structure of proteins is the sequence of amino acids that are connected to
one another by ______ bonds. - Answers - -Covalent Bond
-Peptide Bond
Examples of proteins include: - Answers - -Receptors
-Enzymes
-Hormones
-Transmembrane Channels
Cleaving one phosphate group off of which of the following molecules will provide the
most energy? - Answers - ATP (adenosine triphosphate)
Glycolysis - Answers - Breakdown of a 6-carbon glucose to a two 3-carbon pyruvate
molecules
, Citric Acid Cycle - Answers - Uses acetyl CoA to make GTP and release high energy
electrons
Electron Transport Chain - Answers - Uses high energy electrons to power the
production of ATP
Beta-oxidation - Answers - Breakdown of fatty acids to make acetyl CoA
Which of the following can be used for energy by the human body? - Answers - -
Carbohydrates
-Lipids
-Creatine Phosphate
-Amino Acids
If your RQ was measured at 0.70, which fuel are you primarily burning for energy? -
Answers - Lipids
Which of the following are found in eukaryotic cells, but not prokaryotic cells? - Answers
- Mitochondria
DNA is organized and packaged within the nucleus. In order to read and copy DNA, it
must be partially unwound into a structure called: - Answers - Euchromatin
Identical twins have the same exact DNA in all of their cells. Which of the following
factors can explain differences in gene expression between them? - Answers - -Rates of
gene expression
-Histone acetylation levels
-DNA methylation levels
-Environmental factors
You would expect that the sugars modified in the Golgi apparatus would have initially
been covalently linked to amino acids in the: - Answers - Endoplasmic Reticulum
Who do you share mitochondrial DNA with? - Answers - Mother
What type of bond holds the two separate DNA strands together? - Answers - Hydrogen
Bonds
DNA polymerase reads the template strand in the ___________ direction. - Answers - 3'
to 5'
In DNA replication, the enzyme responsible for selecting the appropriate base, and
forming the phosphodiester bond is: - Answers - DNA Polymerase
