DO NOT WRITE ON PAGE Station 1: Biomolecules DO NOT WRITE ON PAGE

DO NOT WRITE ON PAGE Station 2: Enzymes DO NOT WRITE ON PAGE

Label the following terms in the following picture Enzyme___ Product(s)___ Substrate___ Active site___

Graph 1 Graph 2 Graph 3

Using graph 1, explain how enzymes work. Include the term activation energy and compare the two curves, explaining which is with the enzyme.

Using graph 2, explain how temperature affects enzyme activity. Use the word denature.

Using graph 3, explain how pH affects enzyme activity Relate to the effects of temperature.

DO NOT WRITE ON PAGE Station 3: Monomers and Polymers DO NOT WRITE ON PAGE

Below is an example of dehydration synthesis. In dehydration synthesis, a hydrogen atom from one molecule joins with a hydroxyl group (-OH) from another molecule to form water, leaving two molecules bonded to the same oxygen atom. For example, when glucose and glucose combine by dehydration synthesis, they form maltose and water.

Below is an example of hydrolysis. Complex organic molecules are broken down by the addition of the components of water – H+ and OH-.

What are the products of the hydrolysis reaction?What are the reactants of the dehydration synthesis reaction?How are the reactions above related?

Look at the three reactions below. Which reaction(s) is hydrolysis taking place in? How do you know?Look at the three reactions below. Which reaction(s) is dehydration synthesis taking place in? How do you know?

DO NOT WRITE ON PAGE Station 4: Prokaryotes vs. Eukaryotes DO NOT WRITE ON PAGE

Prokaryote: Bacteria Cell Eukaryote: Plant Cell Eukaryote: Animal Cell

1. Is the characteristic listed below prokaryotic, eukaryotic or BOTH:A) DNA

B) Nucleus

2. What are 3 structures inside a plant cell that make it different from an animal cell?

1._____________________________________

2._____________________________________

C) Nuclear Membrane

D) Cytoplasm

E) Cell Membrane

F) Cell Wall

G) Membrane Bound Organelles (i.e. mitochondria, chloroplast)

H) Ribosome

3._____________________________________

Identify the 2 organelles that are used to explain the endosymbiotic theory.

List 3 evidences to support endosymbiotic theory.

Station 5: Cell Organelles

Cell Organelle Function Picture1. Provides Support

2. A fluid, flexible barrier; Regulates what can go in and out of the cell

3. A membrane bound organelle that contains the DNA; controls cell activities

4. The gel-like fluid that fills the cell and suspends organelles in place

5. The power-house of the cell; makes energy for the cell

6. The location of photosynthesis; makes food from light energy

7. Makes protein for the cell; made of rRNA and protein

Word Bank:• Lysosome

• Endoplasmic Reticulum

• Mitochondria

• Cytoplasm

• Nucleus

• Ribosomes

• Cell Wall

• Vacuoles

• Golgi Apparatus

• Cell Membrane

8. Stores water; very large in plants

9. Modifies, sorts and packages proteins

10. Site of chemical reactions

11. Contains digestive enzymes used to breakdown waste

Word Bank:• Lysosome

• Endoplasmic Reticulum

• Mitochondria

• Cytoplasm

• Nucleus

• Ribosomes

• Cell Wall

• Vacuoles

• Golgi Apparatus

• Cell Membrane

DO NOT WRITE ON PAGE Station 6: Cell Homeostasis DO NOT WRITE ON PAGE

1. What is the cell membrane’s role in maintaining homeostasis?

2. What does it mean that the cell membrane is semi-permeable?

3. Describe what happens to an animal cell in a

a. Hypotonic solution:

b. Hypertonic solution:

4. Describe what happens to a plant cell in a

a. Hypotonic solution:

b. Hypertonic solution:

DO NOT WRITE ON PAGE Station 7: Cell Transport DO NO WRITE ON PAGEWord Bank: ACTIVE TRANSPORT, DIFFUSION, OSMOSIS, FACILITATED DIFFUSION

Picture Type of Transport Why?1)

2)

3)

4)

DO NOT WRITE ON PAGE Station 8: Feedback Loops DO NOT WRITE ON PAGE

1. Insulin and glucagon are both hormones that work opposite to each other. Explain what each of these hormones regulates?

2. When you eat a cupcake, the pancreas will be stimulated to release what hormone?

3. If too much insulin is released, you may have a sharp drop in your blood sugar. How would the pancreas respond to this drop?

4. Diabetics are unable to produce maintain their body's blood sugar at proper levels. What organ(s) is responsible for this problem?

5. Explain how the thermostat in your house uses a negative feedback system to maintain your home's temperature.