Test Today - Topics 2.1 - 2.3

Today students had a test on Topics 2.1 - 2.3.

For homework you need to read about osmosis and diffusion.  You can either read pages 28-33 in the book, or you can use the links below.

How osmosis works (animation with narration and text)
Diffusion and osmosis (text)
Osmosis from Wisc-Online (interactive)
Diffusion (John Kyrk) - animation

Topic 2.4 - Membranes

Today (or tomorrow for H period) we started to learn about the importance, structure and function of cell membranes.  We completed 2.4.1-2.4.3.

Click the picture to link to the tutorial on the construction of the cell membrane.

The video clip below explains why the plasma membrane is a fluid mosaic.




Homework: Study for your short test on Topic 2.1-2.3 on Wednesday.

Scale Bar Magnification & Stem Cells

Today we revisited how to calculate the magnification of an image as well as the actual size of the image.  We spent the last 10 minutes in class discussing stem cells.

Homework for next class:  Read pages 25-27 in your book and take notes.

Figure 3: SEM micrographs of the distal part of the tarsus in the Coccinella septempunctata beetle. Inset shows magnified claw tip, where the white inscribed circle was used to measure the diameter of the claw tip. CL: claws; D: diameter of the claw tip. Scale bar = 50 μm. Scale bar of the inset = 5 μm. (Beilstein J. Nanotechnol. 2011, 2, 302–310. doi:10.3762/bjnano.2.35)

Wrapping up Topic 2.3 - Eukaryotes

Today we finished learning about Eukaryotes and how cells differentiate.  Tomorrow we will spend the day working on solving magnification problems. 

On Wednesday November 30th, you will have a test on Topic 2.1-2.3.

Eukaryotes

Yesterday during E period we discussed the parts of animal and plant cells.  For homework you needed to complete the second and third pages of the packet.

image from fsu.edu

In reality, cells aren't as colorful as the one pictured above.  Below is an electron micrograph of a liver cell.

Image from une.edu

 

 

 

 

Prokaryotes & Eukaryotes

Today we completed Topic 2.2 on Prokaryotes and started Topic 2.3 on Eukaryotes.

Work for E period on Monday:
You have been emailed a packet to work on in class on Monday.  You can either print the notes or work on them on your computer.

Here are some resources, in addition to your book, to help you complete the packet:

Eukaryotes

View more presentations from Stephen Taylor
 
Look inside the cell with Utah Genetics 
Nerve Cells
Assignment Discovery: Look inside cells
Specialized Plant Cells

Cell Size and Stem Cells

Today we just about wrapped up topic 2.1.  For homework you need to read and take notes on 2.1.9 and 2.1.10.

In addition to the book, check out the resources below:
Article: Stem cells can convert to liver tissue, help restore damaged organ
Animation: Differentiation and the fate of cells
Online notes: Topic 2.1.9 and 2.1.10
Animation: Stem cell differentiation
Poster/PDF: Stem cell 'cheat sheet'

Calculating Magnification and Actual Cell Size

Today students worked on calculating the magnification and actual size of cells and organelles.  Click the picture below to link to an interactive animation that helps you see the size of a cell.

Homework: Complete the assigned problems from the worksheet in class today.

Starting Topic 2: Cells

Yesterday / today, we started Topic 2 by learning about cell theory.   Please make sure to bring your textbook to class on Wednesday. 

Student Presentations

Today students gave presentations using the data we collected from Academic Travel. 

Practice IA for the data from Academic Travel

Yesterday afternoon we met with Mr. Merritt for an hour to recap our data from academic travel (see the data from Italy below).  He talked to us about the sampling method that his father, Dr. R. Merritt, has created over the past three decades!  Click on the picture to make it larger.

Today students worked on writing Aspects 2 & 3 of the conclusion and evaluation section of an Internal Assessment.

Students were also divided up into groups for their stream presentations on Friday.  Below are the groups.

E period:
Topic 1: Aleksa, Albert
Topic 2: Csilla, Thais, Angelika
Topic 3: Gabri, Lucia, Carlos
Topic 4: Sofia, Sebastian, Tselmeg

H period:
Topic 1: Zoe, Juan, Daniela
Topic 3: Alessandra, Juliana, Nicolo
Topic 4: Tim, Ignacio, Lud

Test Today

Today (or tomorrow for H period) students had their test on Option G.

Please remember that:

Tomorrow (Tuesday) from 15:50-16:50 we will be meeting with Mr. Merritt to go over our stream data in preparation for a practice data collection & processing I.A.

Wrapping up Classification

Today we finished the last bit of classification of the insects from Airolo. We also completed the last bits of Option G. Make sure to review for your test on Monday/Tuesday of next week.

Welcome Back from The Greatest Academic Travel. Ever.

On behalf of all of us teachers who went with you on Academic Travel, thank you for making this the best Academic Travel we've ever been on.

You learned new skills regarding identification & classification of insects, how to kicknet and where the best places are to find the five different types of functional feeding groups in a stream.

This week we will wrap up classifying the organisms you found in Airolo into the five function feeding groups.  Thursday we will review Option G and on Friday you will have a test on Option G.