What is the effect of an isotonic environment on animal cells?
It is normal for animal cells.
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Hypertonic Environment
What happens to an animal cell in a hypertonic environment?
It shrinks due to water loss.
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Hypotonic Environment
What is a hypotonic environment?
An environment where the solute concentration outside the cell is less than inside the cell.
What is an isotonic environment?
An environment where the solute concentration outside the cell is equal to the solute concentration inside the cell.
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Hypertonic Environment
Why is a hypertonic environment bad for most cells?
Because it can cause cells to lose water and shrink.
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Overview of Cell Transport
How do plant cells differ from animal cells in terms of structure?
Plant cells have a cell wall, chloroplasts, and a central vacuole, which are not present in animal cells.
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Phospholipid Bilayer Permeability
What is the primary method of cell transport discussed in Lecture 7 of Biology 107?
Diffusion through the phospholipid bilayer.
What is the effect of an isotonic environment on plant cells?
It is bad for plant cells.
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Hypertonic Environment
What happens to a plant cell in a hypertonic environment?
It undergoes plasmolysis, where the cell membrane pulls away from the cell wall.
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Hypertonic Environment
What defines a hypertonic environment?
Solute concentration outside the cell is greater than inside the cell.
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Overview of Cell Transport
What is the significance of plasmodesmata in plant cells?
They are channels that allow for transport and communication between plant cells.
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Overview of Cell Transport
What is the primary function of the cell wall in plant cells?
To provide structural support and protection.
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Overview of Cell Transport
What is the role of chloroplasts in plant cells?
To conduct photosynthesis by converting light energy into chemical energy.
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Hypotonic Environment
How does a hypotonic environment affect cells with cell walls?
It is normal for cells with cell walls, such as plants and bacteria.
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Hypotonic Environment
How does a hypotonic environment affect animal cells?
It is bad for animal cells.
What is diffusion?
The net movement of molecules into regions of low concentration.
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Overview of Cell Transport
What is the function of the central vacuole in plant cells?
To store nutrients and waste products, and help maintain turgor pressure.
