Osmosis is the passage of water molecules from a weaker solution (high water concentration) into a stronger solution (low water concentration) through a partially permeable membrane.
100
The __________ of a cell provides the shell and controls what goes in and what goes out.
Cell Membrane
100
The ___________ of a cell provides shapes and stores food. Chemical reactions to maintain life also occur here.
Cytoplasm
100
What happens when an egg is placed into a liquid with LOW concentration of solvent (ex. water)?
It will grow.
100
What is the name of the part of a microscope that you hold onto when you move it?
The arm.
200
What are the two parts of a solution?
Solvent and Solute.
200
The __________ is the control centre or brain of the cell.
Nucleus
200
The small __________ in animal cells and the large _________ in plant cells are storage containers. They also breakdown and remove waste within plant cells.
Vacuoles
200
What happens when an egg is placed into a liquid with HIGH concentration of solvent (ex. saltwater)?
It will shrink.
200
The platform on which you place your slide on a microscope is called the _____________.
The stage.
300
Cell membranes are partially permeable. What does it mean to be partially permeable?
Each cell is surrounded by a cell membrane, which contains tiny holes and allows small molecules to pass through, but not large ones.
300
The __________ in animal cells breakdown and remove trash.
Lysosomes
300
The _____________ help with cell division.
Centrioles
300
What is an isotonic solution?
An isotonic solution contains the same amount of solutes inside and outside of the cell, causing the cell to remain the same size.
300
What is a hypothesis?
An educated guess.
400
Explain the difference between solvent and solution.
The solute dissolves the solvent.
400
_______________ produces energy and is the site of respiration. ____________ packs proteins and modifies them for the needs of the cell.
Mitochondria AND Golgi Apparatus
400
The _________ ER helps with protein synthesis. The ___________ ER acts as storage.
Rough AND Smooth
400
What is a hypotonic solution?
A hypotonic solution contains a smaller amount of solutes outside of the cell than inside of the cell. This causes the water to enter into the cell (the cell will grow).
400
The __________ is a process used to help us find answers to questions about the world around us.
Scientific Method
500
What is a hypertonic solution?
A hypertonic solution contains a larger amount of solutes outside of the cell than inside of the cell. This causes the water to move out of the cell (the cell will shrink).
500
The __________________ allows for movement within the cell.
Endoplasmic Reticulum
500
List the 3 parts of plant cells that animal cells do not have.
Cell Wall, Chloroplasts, Large Vacuole
500
Osmosis transports __________ in and out of cells.
Water
500
What is the name of the province in Canada that Miss Roeher is from?