1. Aim What is the function of a receptor molecule?

2. Receptor molecules Located on the surface of cells
on the cell membrane

3. 3-D view of receptor molecules
What kind of molecules are receptors?
Proteins

4. Cellular Communication
Receptor molecules are used so cells can interact

5. Receptor molecules are Proteins
They have a specific shape
Signals they receive must have a shape that can fit into them
Receptor
Signal

6. Primary Agents to Communicate
Hormones
Chemicals produced by nerve cells
Receptor molecule

7. Which substances are found on cell surfaces and respond to nerve and hormone signals?
1.starches and simple sugars
2.subunits of DNA
3.vitamins and minerals
4.receptor molecules

8. Letter B indicates a
1.ribosomes
2.receptor molecules
3.tissues
4.inorganic substances

9. Base your answer on the diagram and on your knowledge of biology.
Which statement best describes the diagram?
Nerve cell X is releasing receptor molecules.
Nerve cell Y is signaling nerve cell X.
Nerve cell X is attaching to nerve cell Y.
Nerve cell Y contains receptor molecules for substance A

10. Cellular communication is illustrated in the diagram below.
Information can be sent from
cell A to cell B because cell B is able to recognize signal 1
cell A to cell B because cell A is able to recognize signal 2
cell B to cell A because cell A is able to recognize signal 1
cell B to cell A because cell B is able to recognize signal 2
Cellular communication is illustrated in the diagram below.
Information can be sent from
1.cell A to cell B because cell B is able to recognize signal 1
2.cell A to cell B because cell A is able to recognize signal 2
3.cell B to cell A because cell A is able to recognize signal 1
4.cell B to cell A because cell B is able to recognize signal 2