Question 19 of 21intermediate💡 UnderstandMCQ1 mark

Which of the following is NOT the major function of serum?

Exercise: EXERCISES | Q: 19 | (Page 23)
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Explanation

The provided context explicitly states that serum provides binding proteins (like albumin and transferrin) which carry molecules into the cell, matching Option (D). It also mentions that serum supplements adhesion factors to help cells adhere to the substratum, matching Option (A), and that it is a source of growth factors and nutrients to support cell growth, matching Option (B). The context focuses entirely on animal cell culture and does not mention tuber or bulb formation, which is a plant biology concept not associated with serum functions in the given text.

Solution Steps

  1. Step 1: Analyze the text to identify the stated functions of serum. The text lists providing binding/transport proteins, supplementing adhesion factors (attachment), and supporting cell growth (via nutrients and growth factors).

  2. Step 2: Compare the identified functions with the given options. Options (A), (B), and (D) are directly supported by the text.

  3. Step 3: Identify the option not found in the text. 'Promotion of tuber and bulb formation' is not mentioned and falls outside the context of animal cell culture.

  4. Step 4: Select Option (C) as the correct answer because it is NOT a major function of serum according to the provided context.

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