Table 61
Three Different Culture Media Are Shown Below -For the Three Types of Media in Table 6

question 43

Multiple Choice

Table 6.1
Three different culture media are shown below.
$$\begin{array} { | c | c | c | } \hline \text { Medium A } & \text { Medium B } & \text { Medium C } \\\hline \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } & \text { Yeast extract } & \text { Glucose } \\\hline \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \text { Beef extract } & \text { Peptone } \\\hline \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 4 } & \left( \mathrm { NH } _ { 4 } \right) _ { 2 } \mathrm { SO } _ { 4 } \\\hline \mathrm { CaC } _ { 2 } & \mathrm { MgSO } _ { 4 } & \mathrm { KH } _ { 2 } \mathrm { PO } _ { 2 } \\\hline \mathrm { NaHCO } _ { 3 } & ( \mathrm { NH } 4 ) _ { 2 } \mathrm { SO } _ { 4 } & \mathrm { Na } _ { 2 } \mathrm { HPO } _ { 4 } \\\hline\end{array}$$
-For the three types of media in Table 6.1,which medium (or media) is/are chemically defined?

• A)A
• B)B
• C)C
• D)A and B
• E)A and C

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Definitions:

Actin

A protein that forms (together with myosin) the contractile filaments of muscle cells and is also involved in motion in other types of cells.

Myosin

A motor protein known for its role in muscle contraction and movement in other types of cells, interacting with actin.

Proteins

Large molecules composed of one or more chains of amino acids in a specific order, determined by the base sequence of nucleotides in the DNA coding for the protein, serving a vast array of functions within organisms.

Riboflavin

A B-vitamin (B2) essential for energy production and cellular function, found in foods like milk, meat, and green vegetables.