What is the function of the plasma membrane? (1 point)
A. It contains hereditary material.
B. It helps recognize other cells.
C. It helps plants maintain their shape.
D. It helps filter waste inside the cell.
Answers
1. Channels and chain-like structures
2. Cytoplasm
3. Pumps move substances through the plasma membrane
4. Plasma membrane
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B. It helps recognize other cells.
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To determine the correct answer, let's look at each option and evaluate its role in the function of the plasma membrane:
A. It contains hereditary material: This is incorrect. The hereditary material is primarily found within the nucleus of a cell, not within the plasma membrane.
B. It helps recognize other cells: This is correct. The plasma membrane plays a crucial role in cell-cell recognition. It contains various molecules such as proteins and carbohydrates that can interact with molecules on other cells, allowing cells to communicate and recognize each other.
C. It helps plants maintain their shape: This is incorrect. While the plasma membrane is present in plant cells and helps maintain the integrity of individual plant cells, it is not solely responsible for maintaining the overall shape of the plant.
D. It helps filter waste inside the cell: This is incorrect. Filtering waste inside the cell is primarily carried out by other organelles such as lysosomes and peroxisomes, not the plasma membrane.
Therefore, the correct answer is B. The function of the plasma membrane includes helping cells recognize other cells.