Click on the door to join Professor Megacell's class.
Follow the cartoon by clicking on the red arrows!
Click on the stick!
Read the hint in the right speech bubble and roll over the organelles with the mouse cursor.
Tip: Not sure which organelle matches which hint? See the "Organelle Key" section below.
Move the specific organelle you have chosen to the slingshot. Drag and release the mouse cursor when you are satisfied with the distance. Try to hit Professor Megacell in the fan!
If you have forgotten any hints you can click on the small speech bubbles in the upper left corner to read them again.
Mitochondria - the power plant of the cell, provides the energy, ATP (Adenosine-5'-triphosphate), that drives chemical reactions).
Hint: "He looks like he has lost all his energy."
Nucleus - contains the genetic construction plan.
Hint: "He seems to be missing the core somehow."
Endoplastic reticulum - proteins are synthesized and packed for "export" to the cell surface or to other organelles. In the electron microscope the endoplastic reticulum looks like a network of deflated sacks.
Hint: "Proteins are produced in him, but only for internal use. Something where the proteins could be packed in ...".
Lysosomes and peroxisomes - the cell produces a lot of waste material that is broken down and disposed of here.
Hint: "It looks like he can't take care of his waste material."
Ribosomes - protein factories of the cell. Free ribosomes produce proteins for internal use, whereas ribosomes attached to the endoplastic reticulum produce soluble or membrane-attached proteins for exporting out of the cell.
Hint: "Nothing seems to be produced in him, normally he seems to be stuffed with proteins."
Golgi apparatus - proteins produced by ribosomes in the endoplastic reticulum are refined and modified before they are transported to the cell surface or to a lysosome for example.
Hint: "The proteins have to be refined somehow on their way out to the cell surface."
Cytoplasm - the fluid that fills the cell and helps the cell to maintain its internal pressure.
Hint: "He seems to have lost his internal pressue."