Table 6.1
Three different culture media are shown below.
$$\begin{array} { | c | c | c | }
\hline \text { Medium A } & \text { Medium B } & \text { Medium C } \
\hline \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } & \text { Yeast extract } & \text { Glucose } \
\hline \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \text { Beef extract } & \text { Peptone } \
\hline \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \left( \mathrm { NH } _ { 4 } \right) _ { 2 } \mathrm { SO } _ { 4 } \
\hline \mathrm { CaC } _ { 2 } & \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 2 } \
\hline \mathrm { NaHCO } _ { 3 } & ( \mathrm { NH } 4 ) _ { 2 } \mathrm { SO } _ { 4 } & \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } \
\hline
\end{array}$$
-In Table,6.1,in which medium (or media)would an autotroph grow but a heterotroph could not?

Question

Table 6.1
Three different culture media are shown below.
 $$\begin{array} { | c | c | c | } 
\hline \text { Medium A } & \text { Medium B } & \text { Medium C } \
\hline \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } & \text { Yeast extract } & \text { Glucose } \
\hline \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \text { Beef extract } & \text { Peptone } \
\hline \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \left( \mathrm { NH } _ { 4 } \right) _ { 2 } \mathrm { SO } _ { 4 } \
\hline \mathrm { CaC } _ { 2 } & \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 2 } \
\hline \mathrm { NaHCO } _ { 3 } & ( \mathrm { NH } 4 ) _ { 2 } \mathrm { SO } _ { 4 } & \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } \
\hline
\end{array}$$
-In Table,6.1,in which medium (or media)would an autotroph grow but a heterotroph could not?

Quizplus · Accepted Answer

Medium A contains only inorganic compounds, which can be used by autotrophs for growth, but not by heterotrophs, which require organic compounds. Mediums B and C both contain organic compounds, which can be used by heterotrophs.

Table 61 Three Different Culture Media Are Shown Below -In Table,6

Table 61
Three Different Culture Media Are Shown Below -In Table,6