A: Water enters the cell.
B: Water exits the cell toward the solution.
C: Water enters and solute exits the cell.
D: None of the above is correct.
举一反三
- 中国大学MOOC: When a cell is placed in higher water potential solution, .
- If the concentration of a solution outside a cell is less concentrated than inside the cell so that the cell gains water to its environment, the outside solution is said to be ____ to the cell contents. A: hypertonic B: in equilibrium C: isotonic D: hypotonic
- Cell organelles are located within the ____ of the cell. A: nucleus B: cytoplasm C: Cell membrane D: lysosomes
- It is important to maintain the balance of water inside and outside the cell() A: glucose B: albuminNa+ C: K+ D: Na+
- Two-cell mature pollen consists of a vegetative cell and a germ cell.
内容
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The<br/>main morphological characteristics of serous nuclei are as follows() A: The<br/>nucleus is round, at the bottom of the cell base. B: The<br/>nucleus is oblate, at the bottom of the cell base. C: The<br/>nucleus is round, at the center of the cell. D: The<br/>nucleus is oblate, at the center of the cell. E: The<br/>nucleus is at the top of the cell.
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Mitosis is the normal process (by which) a cell divides, (each) new cell (ending) up with (a) same number of chromosomes as the parent cell.（） A: by which B: each C: ending D: a
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The concentration of potassium ions in the cell ( ) is the concentration outside the cell, while the concentration of sodium ions in the cell ( ) is the concentration outside the cell. A: Greater than B: Bigger than smaller than C: Less than D: Less than, greater than
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______is an effective long-term solution to water problem.
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A plasma cell has developed from a B cell. Compared to the cell from which it was derived, the plasma cell A: displays more pMHC Class II B: is a more efficient antigen presenting cell C: recognizes different epitopes D: releases soluble immunoglobulins E: undergoes more efficient isotype switching