QUESTION IMAGE
Question
which table correctly identifies how the plasma membrane contributes to the maint cellular homeostasis? a function yes no controls materials that enter and exit the cell× converts atp to glucose for energy storage× catalyzes protein synthesis× receives signals for dna replication× b function yes no controls materials that enter and exit the cell× converts atp to glucose for energy storage× catalyzes protein synthesis× receives signals for dna replication× c function yes no controls materials that enter and exit the cell× converts atp to glucose for energy storage× catalyzes protein synthesis× receives signals for dna replication× d function yes no controls materials that enter and exit the cell× converts atp to glucose for energy storage× catalyzes protein synthesis× receives signals for dna replication×
- The plasma membrane is selectively permeable, so it controls materials entering and exiting the cell (this is a correct function, so "Yes" for this row).
- ATP is a form of energy currency in cells. Glucose is broken - down to make ATP, not the other way around (so "No" for the "Converts ATP to glucose for energy storage" row).
- Ribosomes are the organelles that catalyze protein synthesis, not the plasma membrane (so "No" for the "Catalyzes protein synthesis" row).
- The plasma membrane has receptor proteins that can receive signals. DNA replication signals can be received by the cell via membrane - bound receptors (so "Yes" for the "Receives signals for DNA replication" row).
Looking at the tables:
- In table A, only the first function (controls materials) is marked "Yes" correctly, but the "Receives signals for DNA replication" is marked "No" incorrectly.
- In table B, the first two functions are marked "No" (incorrect for the first function), and the "Catalyzes protein synthesis" is marked "Yes" (incorrect).
- In table C, the "Converts ATP to glucose" is marked "Yes" (incorrect).
- In table D, "Controls materials that enter and exit the cell" is marked "No" (incorrect).
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A. Option A: Controls materials that enter and exit the cell (Yes), Converts ATP to glucose for energy storage (No), Catalyzes protein synthesis (No), Receives signals for DNA replication (No) - Incorrect for the DNA replication signal - receiving function.
B. Option B: Controls materials that enter and exit the cell (No), Converts ATP to glucose for energy storage (No), Catalyzes protein synthesis (Yes), Receives signals for DNA replication (No) - Incorrect for the first two functions and the protein - synthesis function.
C. Option C: Controls materials that enter and exit the cell (No), Converts ATP to glucose for energy storage (Yes), Catalyzes protein synthesis (No), Receives signals for DNA replication (Yes) - Incorrect for the first and second functions.
D. Option D: Controls materials that enter and exit the cell (No), Converts ATP to glucose for energy storage (No), Catalyzes protein synthesis (Yes), Receives signals for DNA replication (Yes) - Incorrect for the first function.
Since the plasma membrane controls material movement (Yes) and can receive DNA - replication signals (Yes), and does not convert ATP to glucose or catalyze protein synthesis (No for those two), none of the given options (A - D) are completely correct. But if we assume there is a typo and we focus on the key functions:
The plasma membrane's main functions relevant here are controlling material movement (Yes) and receiving signals (Yes). If we consider the closest option where "Controls materials that enter and exit the cell" is "Yes" and "Receives signals for DNA replication" is "Yes" (even though in the given tables this combination is not presented correctly in A - D as per standard cell biology, but if we assume a mis - mark in the tables), there is an error in the problem's table options. However, if we go by the strict marking of the first function (controls materials) as "Yes" (only option A has that), but it wrongly marks "Receives signals for DNA replication" as "No". If we consider that in a real - world cell - biology context (ignoring the table marking errors in the given options to some extent), the plasma membrane's role in controlling materials (Yes) is a fundamental and well - known function. So if we have to choose based on that single correct "Yes" (controls materials) among the options (assuming other functions' markings are secondary in this forced - choice), option A is the best among the given (flawed) options.