Vocabulary
What does a hypertonic cell mean?
There is more solute in the cell than the solution
What is the cell membrane?
Protects and supports the cell, and forms a barrier between the cytoplasm and the outside environment.
What is diffusion?
Movement of molecules from an area of higher to lower concentration through the cell membrane.
Define active transport.
When a substance passes through the cell membrane with the help of extra energy. This happens when a substance moves from and area of lower to higher concentration.
Who first discovered cells?
Robert Hooke
What is a hypotonic solution?
A solution with less solute than the cell
Endoplasmic Reticulum?
Helps transport/make proteins and lipids.
What are the main types of passive transport?
Osmosis, diffusion, and facilitated diffusion.
What are the three types of Active transport?
Sodium-Potassium Pump, Endocytosis, and Exocytosis.
Who was a biologist?
Shwan was a biologist.
What is an isotonic cell mean?
There is an equal amount of solvent and solute.
What is Cytoplasm?
Hold organelles in place, and suspend cell organelles.
Give an example of a molecule that moves by passive transport.
Oxygen, Carbon Dioxide, move across the cell membrane by simple diffusion.
What is Sodium-Potassium Pump?
Movement of sodium ions out of the cell and potassium ions into the cell.
What is the cell theory?
All living things are made up of one or more cells, all cells are alive, and all cells come from pre-existing cells.
Osmosis?
What is the movement of water through the cell membrane
What is and what does it do Nuclear Envelope?
Has pores that allow substances to move into and out of the nucleus.
These molecules can move through the cell membrane through simple diffusion?
What is very small molecules
What is Exocytosis?
Traansport of substances out of the cell.
Who was a botanist?
Matthias Jacob Schlieden was a German botanist.
Sodium potassium pump?
What is the movement of sodium and potassium ions in and out of the cell.
What is Chromopasts?
Gives flowers and fruits their colors.
Does passive transport need energy?
No
What is Endocytosis?
Transport of substance into the cell.
True or False some cells lack DNA?
False