Posted in 3/4 SBI3U Biology

SBI3U Cell Cycle Warm Up

  • What are the three phases of interphase and what is happening in each phase?
  • What is meant when we say DNA is made of base-pairs?
  • How many billions of base-pairs are in one set of chromosomes in a human cell in i) G1 of interphase ii) G2 of interphase?
  • In terms of physical structure, what is the difference between a chromosome that is in the form of chromatin, a chromatid and a dyad?
  • Why do we see chromatin in interphase but not in mitosis?
Posted in 6 SBI4U Biology

SBI4U Intermolecular Forces and Boiling Point Homework

imf trends

Answer this question thoroughly.  Consider it like a practice assignment – it will be assessed and you will get feedback but it won’t count.  This kind of question would be a good extended answer on a test.  But since it will be collected on Wednesday you will have more time to let these ideas percolate in your mind and you can craft the best answer possible.  It is ALWAYS recommended that you construct a solid OUTLINE of your response before beginning to write your final piece.  This approach will greatly improve the final product because your mind can get the ideas out in a solid framework before the finishing touches of your final answer are done.  If you think about it, figuring something out and then explaining it are two separate tasks that use different parts of your mind.  Attempting to do both at once is why long answer questions seem so daunting.  Separating these two processes into two tasks will make things more manageable and effective. Bite-size pieces!!!!

Posted in 3/4 SBI3U Biology

SBI3U Cheek Cell Lab Due Thursday March 1

  • Have this stapled, in proper order.
  • On the photo of your cell(s), identify which one you used for your calculations if there is more than one in your printed picture.
  • Question 7 & 8 and your end of text References are to be submitted in the Virtual Learning Environment (D2L). Use proper scientific terminology (like chromatin, histones, etc) but remember to put all explanations in your own words in such a way that a family member, friend or peer would understand what you are saying.
  • Both In-text and End of Text citation are required.  This practice is necessary in science writing and will be an on-going requirement in the course for research assignments.