It is called a phospholipid and it is made of a phosphate head and 2 fatty acid tails.
What is the primary molecule found in the cell membrane?
100
osmosis
What is the movement of water from a high concentration to a low concentration?
100
When the plant cells shrink due to the loss of water.
What is plasmolysis?
200
prokaryote
What type of cell has no membrane-bound organelles?
200
It makes ribosomes.
What is the function of the nucleolus?
200
A peripheral protein.
What type of protein may act as an antenna for cells?
200
It is the movement of materials through a membrane within an integral protein from a high concentration to a low concentration.
What is facilitated diffusion?
200
The iodine moved from outside the 'cell' to the inside because there was a higher concentration outside the cell and the pore size allowed it to move.
What was the movement of iodine in the lab and why.
300
eukaryote
What type of cell is a fungus?
300
It makes lipids.
What is the function of the smooth endoplasmic reticulum?
300
Cholesterol
What is the molecule that keeps the animal cells stiffened and so they will not freeze in very cold conditions?
300
It is, when comparing two solutions, the one with more solutes is hypertonic.
What is the meaning of hypertonic?
300
They remain small because if they were too big then the ratio of cell surface area to volume would decrease and the cell would not be efficient in releasing wastes, moving food and gases in and out.
Why do cells remain so small?
400
prokaryote
What cell type is the most primitive?
400
The chloroplasts.
Which organelle is capable of converting light energy into chemical energy?
400
The function is to allow molecules to enter and leave the cell that are too large or have a charge.
What is the function of the intergral proteins?
400
Water will move from an area of low concentration of solutes to an area of high concentration of solutes because there is less water in the higher concentration of solutes.
Describe how water will move when describing solute concentrations and why.
400
The starch stayed in the membrane because it turned blue when reacting with the iodine. It was too large to come out of the membrane.
What happened to the starch in the lab?
500
Robert Hooke and cork cells
Who discovered cells and what type did he look at when he discovered them?
500
The ribosomes, rough ER, Golgi Apparatus.
What 3 organelles are associated with making and processing proteins?
500
Lipids and small, uncharge molecules can enter and leave the cell membrane such as oxygen, carbon dioxide and urea.
What types of molecules can enter and leave the cell and why?
500
Be sure to include the 2 layers of phospholipids, proteins.
Draw on the board the cell membrane including the phospholipids, integral and peripheral proteins.
500
More and more water will move into the cells because there is more water outside the cell than inside the cell and your cells will burst (lysis).
Describe what happens if you over-hydrate yourself?