Mrs. Moran

Biology

Posted: September 18, 2019

Math 9

Please complete the following questions from the textbook:

p. 134 - 136 #3, 4, 5, 6, 11, 12, 13, 14

Posted: September 16, 2019

Biology 112 Sept. 16 Homework

Questions:

1.  How did the work of John Needham cause a resurgence of the theory of spontaneous generation?

2.  How did Spallanzani improve upon Needham's experiment?

3.  Why were Needham's supporters cautious about accepting Spallanzani's results?

4.  Explain how Pasteur refuted the theory of spontaneous generation.

Posted: September 16, 2019

10-2 p. 249 #1 - 6

1.  During the cell cycle, a cell grows (G1), copies its chromosomes (S), prepares for division (G2), and divides to form two daughter cells (M).

2. G1 - the cell grows and carries out its day-to-day activities; S - synthesis phase; the chromosomes are copied, resulting in identical sister chromatids; G2 - the cell makes additional organelles, and prepares to divide; M - the cell goes through prophase, metaphase, anaphase, telophase, and cytokinesis to divide its chromosomes and cytoplasm

3. Interphase is made up of G1, S, and G2 phases, during which the cell grows, copies DNA, and prepares to divide.

4. Chromosomes are made of DNA (coded genetic information) and protein.

5. A prokaryotic cell replicates its genetic material (often just a single, circular chromosome), then undergoes binary fission to separate the cell contents into two daughter cells.

6. Cytokinesis is the division of the cytoplasm in both plant and animal cells. The difference is that in plant cells, a cell plate forms midway between the divided nuclei.

 

10-3 p. 252 # 1- 4

1. Cyclins regulate the timing of the cell cycle in eukaryotic cells.  Cyclin may cause a mitotic spindle to form and trigger cell division.

2. Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumours that can damage surrounding tissues, and/or spread to other parts of the body.

3. Normal cells would stop growing when they come in contact with other cells.

4. The cell cycle is a series of evens that cells go through as they divide, and cancer is a disorder in which some of the body's cells lose the ability to regulate their growth.

Posted: September 9, 2019

Math 9:

Please complete questions #11 a - f on p. 112 of the textbook.

Posted: September 6, 2019

Math 9:

Please complete #5-10 on p. 101 in the textbook for Monday.

Posted: September 6, 2019

Please complete the worksheet on Parallel Lines and the Transversal (solving for X) that was handed out in class.

Posted: September 6, 2019

Biology 112:

Please complete the 4 discussion questions from class.

1.  What do you think about ideas such as flies just appearing from meat, or frogs from mud? 

2.  How do you think we've come to change these ideas? 

3.  How can you prove that something is not true? 

4.  Can people just state new ideas without any science to

 back them up?

Posted: June 6, 2019

The answers to the Biology 112 exam review are posted below.  A paper copy is also posted in my classroom. 

AttachmentSize
PDF icon answers_to_bio_112_exam_review.pdf238.46 KB

Posted: June 6, 2019

I've included files of the final two lessons from our Animals unit below for anyone who was absent and may have missed them.

AttachmentSize
PDF icon mollusks_lesson.pdf22.48 MB
PDF icon chordates_lesson.pdf9.05 MB

Attention students on the JUNO trip:

Please see the take-home test on animals attached below.  The due date for students who are currently on the Juno trip will be Wednesday, June 12 at 3:00 p.m.  You may type your answers directly into the Word document, if you prefer, or other compatible software.  I've also attached the same file as a PDF so you should be able to open it.  I have paper copies available in my classroom if you would like to pick one up on Monday after you return.

Please email me at sherri.moran@nbed.nb.ca with any questions or concerns.

 

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