This man observed cork with his microscope and called the tiny boxes 'cells'
Who was Robert Hooke
This property allows some things to enter/leave the cell, and blocks other things from doing so.
What is selective permeability?
This fills the space inside a cell. It is semi-fluid and is composed of water and dissolved materials.
What is cytoplasm?
This occurs when particles of a substance move from where there are many particles to where there are few particles.
What is diffusion?
This cell type contains a nucleus and organelles (such as mitochondria).
What are eukaryotic cells?
True or false" The cell membrane controls what goes in and out of the cell
What is true
This organelle directs cell processes by providing DNA instructions. It is surrounded by its own membrane and is covered with pores.
What is the nucleus?
These structures are used for cell movement. The first is long and there are usually very few of them. The second are short and there are usually many of them.
What flagella and cilia?
The type of diffusion that occurs when a transport protein is required to move large molecules along with the concentration gradient.
What is facilitated diffusion?
Simple, compound, light, electron and transmission are all terms that relate to:
What are microscopes?
Large molecules that cannot pass through the phospholipid bilayer must pass through these.
What are transport proteins?
This organelle is a series of flattened membranes. Cell products pass through these membranes and become packaged for delivery in or out of the cell.
What is the Golgi apparatus
This organelle digests worn out cell parts and also plays a role to defend the cell from infection.
What is a lysosome?
This occurs when water diffuses into a cell.
What is osmosis?
This cell type has no nucleus or other organelles. Bacteria are the only example of this cell type.
What is a prokaryotic cell?
Large molecules that cannot pass through the phospholipid bilayer must pass through these.
What are transport proteins?
This organelle is a series of interconnected passageways. Proteins and lipids are synthesized (put together) here also. There are two varieties 'S' and 'R'.
What is the endoplasmic reticulum?
These are made by the nucleolus and their function is to follow DNA instructions to make stuff. They are free-floating or may be found attached to the ER.
What are ribosomes?
This term refers to the direction the particles are moving; you are either going with it or against it.
What is the concentration gradient?
list each statement of the cell theory... list the 3 statements
1. All living things are made of cells. 2. Cells are the basic unit of life. 3. Cells only come from other cells.
These lipids are located within the phospholipid bilayer, and they function to stablize the cell membrane
What is cholesterol?
This organelle is found only in animal cells. It is made of microtubules and is thought to play a role in cell division.
What are centrioles?
The three differences between plant and animal cells are:
1. Plant cells have cell walls. 2. Plant cells have chloroplasts 3. Animal cells have centrioles.
The sodium/potassium pump requires ATP to pump against the concentration gradient. This is an example of this type of transport.
What is active transport?