Biology 1A03 Final Exam Questions With
Correct Answers
What |is |a |Eukaryotic |cell? |- |CORRECT |ANSWER✔✔-The |cells |have |a |nucleus |that |contains |most
|of |the |genetic |material |in |the |cell.
T |or |F: |Eukaryotic |Cells |are |larger |than |prokaryotic |cells? |- |CORRECT |ANSWER✔✔-True
T |or |F: |There |are |approximately |10 |times |more |eukaryotic |cells |in |our |body |than |prokaryotic |
cells? |- |CORRECT |ANSWER✔✔-False |- |there |are |approximately |10 |times |more |prokaryotic |cells
|in |our |body |than |eukaryotic |cells.
T |or |F: |All |of |the |cells |in |our |body |share |a |genetic |heritage? |- |CORRECT |ANSWER✔✔-False |- |
We |carry |a |lot |of |passengers |who |do |not |share |a |common |genetic |heritage |with |our |own |
eukaryotic |cells. |Most |are |prokaryotic |cells |(this |includes |bacterial |cells).
What |are |prokaryotic |cells? |- |CORRECT |ANSWER✔✔-Cells |that |do |not |contain |a |true |nucleus.
T |or |F: |Bacterial |cells |make |up |2 |to |3% |of |our |body |mass |- |CORRECT |ANSWER✔✔-True
Are |bacterial |cells |harmful? |- |CORRECT |ANSWER✔✔-Most |bacterial |cells |are |harmless, |and |
provide |essential |functions |throughout |our |physiological |systems. |Some |of |the |cells |are |
potentially |harmful, |but |are |contained/managed |by |our |immune |system.
What |is |a |microbiome? |- |CORRECT |ANSWER✔✔-The |term |microbiome |is |used |to |describe |the |
populations |of |microbiotic |organisms |(microoorganisms |or |microbes) |within |our |bodies.
, What |is |a |microorganism? |- |CORRECT |ANSWER✔✔-An |organism |that |is |not |visible |to |the |
naked |eye, |but |is |only |visible |under |a |microscope.
Where |in |our |body |are |Bacterial |cells |found? |- |CORRECT |ANSWER✔✔-They |are |found |in |
nearly |every |part |of |our |body.
T |or |F: |There |may |be |about |10,000 |distinct |species |of |microbes |on |and |in |a |healthy |human |
body? |- |CORRECT |ANSWER✔✔-True
What |is |Streptococcus |salivarius? |- |CORRECT |ANSWER✔✔-It's |a |bacteria |that |lives |in |the |
human |upper |respiratory |tract |and |mouth. |It |contributes |to |formation |of |dental |plaque, |and |
it's |also |one |of |the |first |microbes |to |colonize |a |germ-free |newborn's |mouth |and |
gastrointestinal |tract.
What |is |Straphylococcus |haemolyticus? |- |CORRECT |ANSWER✔✔-It's |a |bacteria |that |resides |on |
our |skin. |It |is |harmless |there, |but |it |can |be |pathogenic |if |it |gets |inside |our |body. |Infection |
commonly |leads |to |activation |of |the |immune |system.
What |is |Bacteriodes |thetaiotaomicron? |- |CORRECT |ANSWER✔✔-It's |a |predominant |intestinal |
bacteria. |It |makes |enzymes |that |are |useful |in |the |breakdown |of |plant |materials |that |we |ingest,
|such |as |oat |fibre.
What |is |a |cell? |- |CORRECT |ANSWER✔✔-A |cell |is |a |membrane-bound |structure |containing |
macromolecules.
What |are |the |four |classes |of |macromolecules? |- |CORRECT |ANSWER✔✔-1. |Nucleic |Acids |(DNA |
and |RNA)
2. |Proteins
3. |Polysaccharides
Correct Answers
What |is |a |Eukaryotic |cell? |- |CORRECT |ANSWER✔✔-The |cells |have |a |nucleus |that |contains |most
|of |the |genetic |material |in |the |cell.
T |or |F: |Eukaryotic |Cells |are |larger |than |prokaryotic |cells? |- |CORRECT |ANSWER✔✔-True
T |or |F: |There |are |approximately |10 |times |more |eukaryotic |cells |in |our |body |than |prokaryotic |
cells? |- |CORRECT |ANSWER✔✔-False |- |there |are |approximately |10 |times |more |prokaryotic |cells
|in |our |body |than |eukaryotic |cells.
T |or |F: |All |of |the |cells |in |our |body |share |a |genetic |heritage? |- |CORRECT |ANSWER✔✔-False |- |
We |carry |a |lot |of |passengers |who |do |not |share |a |common |genetic |heritage |with |our |own |
eukaryotic |cells. |Most |are |prokaryotic |cells |(this |includes |bacterial |cells).
What |are |prokaryotic |cells? |- |CORRECT |ANSWER✔✔-Cells |that |do |not |contain |a |true |nucleus.
T |or |F: |Bacterial |cells |make |up |2 |to |3% |of |our |body |mass |- |CORRECT |ANSWER✔✔-True
Are |bacterial |cells |harmful? |- |CORRECT |ANSWER✔✔-Most |bacterial |cells |are |harmless, |and |
provide |essential |functions |throughout |our |physiological |systems. |Some |of |the |cells |are |
potentially |harmful, |but |are |contained/managed |by |our |immune |system.
What |is |a |microbiome? |- |CORRECT |ANSWER✔✔-The |term |microbiome |is |used |to |describe |the |
populations |of |microbiotic |organisms |(microoorganisms |or |microbes) |within |our |bodies.
, What |is |a |microorganism? |- |CORRECT |ANSWER✔✔-An |organism |that |is |not |visible |to |the |
naked |eye, |but |is |only |visible |under |a |microscope.
Where |in |our |body |are |Bacterial |cells |found? |- |CORRECT |ANSWER✔✔-They |are |found |in |
nearly |every |part |of |our |body.
T |or |F: |There |may |be |about |10,000 |distinct |species |of |microbes |on |and |in |a |healthy |human |
body? |- |CORRECT |ANSWER✔✔-True
What |is |Streptococcus |salivarius? |- |CORRECT |ANSWER✔✔-It's |a |bacteria |that |lives |in |the |
human |upper |respiratory |tract |and |mouth. |It |contributes |to |formation |of |dental |plaque, |and |
it's |also |one |of |the |first |microbes |to |colonize |a |germ-free |newborn's |mouth |and |
gastrointestinal |tract.
What |is |Straphylococcus |haemolyticus? |- |CORRECT |ANSWER✔✔-It's |a |bacteria |that |resides |on |
our |skin. |It |is |harmless |there, |but |it |can |be |pathogenic |if |it |gets |inside |our |body. |Infection |
commonly |leads |to |activation |of |the |immune |system.
What |is |Bacteriodes |thetaiotaomicron? |- |CORRECT |ANSWER✔✔-It's |a |predominant |intestinal |
bacteria. |It |makes |enzymes |that |are |useful |in |the |breakdown |of |plant |materials |that |we |ingest,
|such |as |oat |fibre.
What |is |a |cell? |- |CORRECT |ANSWER✔✔-A |cell |is |a |membrane-bound |structure |containing |
macromolecules.
What |are |the |four |classes |of |macromolecules? |- |CORRECT |ANSWER✔✔-1. |Nucleic |Acids |(DNA |
and |RNA)
2. |Proteins
3. |Polysaccharides
