Bio 260 Midterm Study Guide Questions With Correct Answers

Bio 260 Midterm Study Guide Questions
With Correct Answers

Which |of |the |following |systems |are |not |capable |of |producing |antibodies |that |attach |to |foreign |
substances? |(Select |all |that |apply) |- |CORRECT |ANSWER✔✔-- |Cardiovascular

- |Endocrine

- |Lymphatic



Using |the |figure |depicting |homeostatic |imbalance, |which |letter |would |represent |the |"output?"
|- |CORRECT |ANSWER✔✔-D




Which |of |the |following |system |plays |a |role |in |protecting |underlying |organs |from |
environmental |damage |and |synthesizes |vitamin |D? |- |CORRECT |ANSWER✔✔-Integumentary



What |feedback |mechanism |is |used |during |childbirth? |- |CORRECT |ANSWER✔✔-positive |
feedback |mechanism



Responsiveness |or |irritability |is |the |ability |to |sense |changes |in |the |environment |and |then |
respond |to |them. |- |CORRECT |ANSWER✔✔-True



Average |body |temperature |is |________ |degrees |centigrade. |- |CORRECT |ANSWER✔✔-37



If |you |consider |your |home |air |conditioner |in |terms |of |homeostasis, |then |the |wall |thermostat |
would |be |the |________. |- |CORRECT |ANSWER✔✔-control |center

,A |structure |that |is |composed |of |two |or |more |tissue |types |that |work |together |to |perform |
specific |functions |for |the |body |is |a(n) |________. |- |CORRECT |ANSWER✔✔-organ



Place |the |following |in |correct |sequence |from |simplest |to |most |complex:

1. |molecules

2. |atoms

3. |tissues

4. |cells

5. |organs |- |CORRECT |ANSWER✔✔-2-1-4-3-5



Select |the |most |correct |statement. |- |CORRECT |ANSWER✔✔-The |immune |system |is |closely |
associated |with |the |lymphatic |system.



What |is |the |main, |general |purpose |of |negative |feedback? |- |CORRECT |ANSWER✔✔-to |maintain
|homeostasis




Which |of |the |following |are |functional |characteristic |of |life? |(Select |all |that |apply) |- |CORRECT |
ANSWER✔✔-- |movement

- |maintenance |of |boundaries

- |responsiveness |to |external |stimuli



The |numbers |listed |represent |the |number |of |electrons |in |the |first, |second, |and |third |energy |
levels, |respectively. |On |this |basis, |which |of |the |following |is |an |unstable |or |reactive |atom |- |
CORRECT |ANSWER✔✔-2, |8, |1



A |bond |in |which |electrons |are |completely |lost |or |gained |by |the |atoms |involved |- |CORRECT |
ANSWER✔✔-Ionic |bond

, First |one |or |two |letters |of |an |element's |name |is |the |__________. |- |CORRECT |ANSWER✔✔-
Atomic |symbol



Isotopes |differ |from |each |other |only |in |the |number |of |electrons |the |atom |contains. |- |CORRECT
|ANSWER✔✔-False




A |dipeptide |can |be |broken |into |two |amino |acids |by |dehydration |synthesis. |- |CORRECT |
ANSWER✔✔-False



Which |of |the |following |is |are |true |of |proteins? |(Select |all |that |apply) |- |CORRECT |ANSWER✔✔--
|Their |function |depends |on |their |three-dimensional |shape.



- |They |have |both |functional |and |structural |roles |in |the |body.

- |They |may |be |denatured |or |coagulated |by |heat |or |acidity.



Carbohydrates |are |stored |in |the |liver |and |muscles |in |the |form |of |________. |- |CORRECT |
ANSWER✔✔-glycogen



Which |of |the |following |does |NOT |describe |enzymes? |- |CORRECT |ANSWER✔✔-Enzymes |work |
by |raising |the |energy |of |activation.



A |chemical |reaction |in |which |bonds |are |broken |is |usually |associated |with |________. |- |
CORRECT |ANSWER✔✔-the |release |of |energy



What |level |of |protein |synthesis |is |represented |by |the |coiling |of |the |protein |chain |backbone |
into |an |alpha |helix? |- |CORRECT |ANSWER✔✔-secondary |structure



The |four |elements |that |make |up |about |96% |of |body |matter |are |________. |- |CORRECT |
ANSWER✔✔-carbon, |oxygen, |hydrogen, |nitrogen