Cell Discovery
This man observed cork with his microscope and called the tiny boxes 'cells'
Who was Robert Hooke
This property of the cell membrane 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 (jello!) and is composed of water and dissolved materials.
What is cytoplasm?
How did the vinegar get rid of the egg shell?
What is - the acid dissolved it?
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?
The part of the phospholipid that 'loves' water
What is the hydrophilic head?
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?
Why did the egg in the water gain mass?
What is the water was hypotonic to the egg. Water entered the egg and the egg gained mass?
This process involves the movement of water from high to low water concentration
What is osmosis?
Anton Van Leewenhoek was the first to do what?
What are living cells/living organisms?
This process involves food or another substance entering a cell or organism
What is endocytosis?
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 ?
Why did the egg in the corn syrup lose mass?
What is the corn syrup is hypertonic to the egg. Water leaves the egg and the egg shrinks, loses mass.
When a cell is placed into this type of solution, the cell would expand
What is hypotonic?
This cell type has no nucleus or other organelles. Bacteria are the only example of this cell type.
What is a prokaryotic cell?
What kind of cells have cell membranes?
Plant cells, animal cells or both?
What are all cells?
This organelle is a series of interconnected passageways. Proteins are transported through these
What is the endoplasmic reticulum?
This substance diffused out of the bag in beaker A
What is glucose?
What is active transport?
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.
How many layers of phospholipids are there in the cell membrane?
What are two?
This organelle is found only in animal cells. It is made of microtubules and is involved with cell division.
What are centrioles?
Describe completely what happened to beaker B ?
What is : The iodine diffused into the bag and mixed with the starch and turned blue-black. The starch stayed in the bag b/c it is too large to pass across the membrane.
State the complete scientific reason why salty/spicy foods make your thirsty
What is .....
Salty food is hypertonic to cells. Osmosis occurs. Water leaves cells, cells shrink. Brain tells you that you are thirsty.