Posted in P2 SBI4U Biology

SBI4U Functional Groups Practice Quiz on Thursday Feb 21

Know the following for the functional groups from page 25, as well as the aromatic ring and methyl group I added in when we started our new and improved table: group name, chemical formula, structural formula, VSEPR shape, and be able to recognize the ball & stick model for each (I’ll find better ones than those in the textbook).

Traditionally, for ball & stick and spacefill models the colour coding is standard: black – carbon, white – hydrogen, blue – nitrogen,
orange or purple – phosphorous, yellow – sulfur

Posted in P3 SBI3C Biology

SBI3C Cheek Cell Lab Due Tuesday February 26

Although this is a fair length of time to complete this small activity, it is vital for you to get on it and stay on it so you have room to make any needed corrections prior to submitting it.

Please ensure that you have:

Submitted the photo of your cheek cell at 1000X in the “My Cheek Cell Photo” folder in the Assignments section of the VLE.

Printed the photo you submitted to base your report calculations on and staple it to the report where you did your drawing and calculations.

Mark the measurement lines on the drawing and the photo that you used for your calculations.

Include a sentence answer for each calculation you did.

Use the format below for your photo and drawing calculations:

Posted in P2 SBI4U Biology

SBI4U Homework – Really Understanding VSEPR & Molecular Polarity

For the polar molecules from yesterday’s work, draw a diagram (ball & stick or 3Dish Lewis structure).

Draw the dipole arrow along each polar bond in each molecule.

Draw a dotted “cut line” or line of asymmetry. Draw the net dipole perpendicular to this cut line.

Make a statement about which part of the molecule feels slightly negative and which side feels slightly positive. Incorporate VSEPR words where you can.

Posted in P1 SBI3U Biology

SBI3U Cheek Cell Lab Due Tuesday February 26

Although this is a fair length of time to complete this small activity, it is vital for you to get on it and stay on it so you have room to make any needed corrections prior to submitting it.

Please ensure that you have:

Submitted the photo of your cheek cell at 1000X in the “My Cheek Cells” folder in the Assignments section of the VLE.

Printed the photo you submitted to base your report calculations on and staple it to the report where you did your drawing and calculations.

Mark the measurement lines on the drawing and the photo that you used for your calculations.

Include a sentence answer for each calculation you did.

Submit the answers and sources for questions 7-13 in the “Cheek Cell Lab: Making Connections” folder in the VLE.