W12D4 Enzymes

W12D4 Enzymes

SWBAT use their knowledge of synthesis and digestion reactions to identify how an enzyme and substrate are interacting.

Open Ended

An investigation was performed to determine the effects of enzyme X on three different disaccharides (double sugars) at 37°C. Three test tubes were set up as shown in the diagram below.

Open Ended

**Is the enzyme shown in the diagram speeding up a synthesis or digestion reaction? Explain how you know.

BID: Is the substrate synthesizing (combining) or digesting (breaking down)?

Open Ended

An investigation was performed to determine the effects of enzyme X on three different disaccharides (double sugars) at 37°C. Three test tubes were set up as shown in the diagram below.

At the end of 5 minutes, the solution in each test tube was tested for the presence of disaccharides (double sugars) and monosaccharides (simple sugars). The results of these tests are shown in the table above.

Open Ended

*Why do you think enzyme X didn’t work on sugars A and B in the previous questions diagram?

BID: what about enzymes makes it so specific/ choosy?

BID: How do the substrate and enzyme fit?

Launch into today's lesson!

Open Ended

Prediction: What if enzymes just kept going and converted every molecule in the world?

STAMP

• Enzymes are protein catalysts that help speed up these chemical reactions. 

• Enzymes work on substrates to either synthesis or digestion them by combining at the active site where the chemical reaction occurs.

•   Enzymes are chemically specific. This means that each enzyme is specifically shaped to fit a specific substrate.

• Enzymes typically end with ase as an ending

Multiple Choice

**An enzyme and four different molecules are shown in the diagram below.

The enzyme would most likely affect reactions involving which of the following substrates?

BID: which substrate fits the enzyme like a puzzle piece?

• Molecule A only

• Molecule B and D

• Molecule C only

• Molecule A and C

Fill in the Blanks

Enzymes are

that speed up chemical reactions in living organisms

Multiple Choice

*The ______________________ of an enzyme is very important to the function of the enzyme

• shape

• color

• size

• mass

Open Ended

**Why do enzymes generally bind to only one type of substrate?

BID: what makes enzymes specific?

Review of slide 15: Why do enzymes bind to only one type of substrate?

You're almost done!! Time to complete the deliverable. The next five questions are your deliverable questions! When you're done submit a picture of your notebook onto google classroom!

Multiple Choice

**Enzymes change their shape after a reaction.

BID: remember our analogy, the enzyme is the shady friend. Does that friend change?

• True

• False

Multiple Choice

Once the substrate is let go by the enzyme, it is now called

• product

• final substrate

• reactant

Multiple Choice

**The subunits of enzymes are

BID: enzymes are a type of protein, which option is the subunit of proteins?

• Amino Acids

• Simple sugars

• Nucleotides

Open Ended

*Catalase (an enzyme) is added to a solution with hydrochloric acid. Explain why not reaction would occur.

Multiple Choice

Based on your knowledge of enzymes, which of the following statements is most likely accurate?

• The hydrogen peroxide is used up and the catalase remains unchanged

• The catalase is used up and the hydrogen peroxide remains unchanged

• Both the hydrogen peroxide and he catalase are used up

• Neither the hydrogen peroxide nor the catalyst is used up

Have a nice weekend! Tomorrow's deliverable is a google form with a few reflection questions! Be honest and help Ms. Hooks improve so I can ensure that you are all successful! Please do not text me today....I'm at a retreat getting in tune with nature!