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How many of the given statements are inc...

How many of the given statements are incorrect ?
I. Connectivity of plasmodesmata is maintained by ER membrane called dictyosome .
II.Totallly buried proteins in membrane are integral protein while partially buried proteins are peripheral proteins.
III. The primary cell wall is capable of growth.
IV. The peroxisome is not included in the endomembrane system.

A

One

B

Two

C

Three

D

Four

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the given statements are incorrect, we will analyze each statement one by one: 1. **Statement I**: "Connectivity of plasmodesmata is maintained by ER membrane called dictyosome." - **Analysis**: This statement is incorrect. Plasmodesmata are channels that connect plant cells, and their connectivity is maintained by the endoplasmic reticulum (ER) but not by a structure called dictyosome. Dictyosomes (or Golgi apparatus) are involved in processing and packaging proteins, not in maintaining plasmodesmata connectivity. 2. **Statement II**: "Totally buried proteins in the membrane are integral proteins while partially buried proteins are peripheral proteins." - **Analysis**: This statement is also incorrect. Integral proteins are indeed those that are fully embedded in the membrane, but peripheral proteins are not just partially buried; they are loosely attached to the exterior or interior surfaces of the membrane, not embedded. 3. **Statement III**: "The primary cell wall is capable of growth." - **Analysis**: This statement is correct. The primary cell wall is flexible and can expand as the cell grows, allowing for cell enlargement. 4. **Statement IV**: "The peroxisome is not included in the endomembrane system." - **Analysis**: This statement is correct. The endomembrane system includes structures like the endoplasmic reticulum, Golgi apparatus, lysosomes, and vesicles, but peroxisomes are not considered part of this system. Now, let's summarize the findings: - Incorrect statements: I and II (2 statements) - Correct statements: III and IV (2 statements) **Final Answer**: There are 2 incorrect statements. ---
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