Human Body Systems (hbs)mr. Mac's Biology Page

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Human body systems (hbs)mr. mac
  1. Human Body Systems (hbs)mr. Mac's Biology Pages
  2. Human Body Systems (hbs)mr. Mac's Biology Page 265
Human Body Systems (hbs)mr. MacBiology

Hell city unblockeddefinitely not a game site. This resource, updated to reflect the MLA Handbook for Writers of Research Papers (7th ed.) and the MLA Style Manual and Guide. Mac's Biology Page: Home Biology B Contact Biology A Anatomy and Physiology Human Body Systems (HBS) Biology A Fall & Winter terms: Ecology, Bio-molecules, Cells.

Human Body Systems (hbs)mr. Mac

Human Body Systems (hbs)mr. Mac's Biology Pages

Mac

Human Body Systems (hbs)mr. Mac's Biology Page 265

IB Biology‎ > ‎Topic 1: Cell Biology‎ > ‎

1.1 Introduction to Cells

1.1 Introduction to Cells1.2 Ultrastructure1.3 Membrane Structure1.4 Membrane Transport1.5 Origin of Cells1.6 Cell Division
Essential Idea
  • The evolution of multicellular organisms allowed cell specialization and cell replacement.
Understandings
  1. According to the cell theory, living organisms are composed of cells.
  2. Organisms consisting of only one cell carry out all functions of life in that cell.
  3. Surface area to volume ratio is important in the limitation of cell size.
  4. Multicellular organisms have properties that emerge from the interaction of their cellular components.
  5. Specialized tissues can develop by cell differentiation in multicellular organisms.
  6. Differentiation involves the expression of some genes and not others in a cell's genome.
  7. The capacity of stem cells to divide and differentiate along different pathways is necessary in embryonic development and also makes stem cells suitable for therapeutic uses.
Applications
  1. Questioning the cell theory using atypical examples, including striated muscle, giant algae and aseptate fungal hyphae.
  2. Investigation of functions of life in Paramecium and one named photosynthetic unicellular organism.
  3. Use of stem cells to treat Stargardt's disease and one other named condition.
  4. Ethics of the therapeutic use of stem cells from specially created embryos, from the umbilical cord blood of a new-born baby and from an adult's own tissues.
Skills
  1. Use of a light microscope to investigate the structure of cells and tissues, with drawing of cells. Calculation of the magnification of drawings and the actual size of structures and ultrastructures shown in drawings or micrographs (VIDEO). (Practical 1)
Key Vocabulary
  • Cell
    • Cell theory
    • Unicellular
    • Multicellular
    • Surface area to volume ratio
  • Tissue
    • Differentiation
    • Gene
      • Genome
  • Stem cell
    • Stem cell therapy
  • Microscope
    • Magnification
    • Micrograph
    • Ultrastructure
  • Functions of life
    • Nutrition
    • Metabolism
    • Growth
    • Response
    • Excretion
    • Homeostasis
    • Reproduction
  • Scale

Notes
1.1 Introduction to Cells
A detailed set of notes, prepared by Bob Smullen, examining all of the IB learning expectations.
Essentially an online textbook outlining the entire subtopic in specific detail. Please use this resource.
A detailed set of notes created by Chris Paine examining all of the IB learning expectations.
A series of questions, created by Chris Paine, to help check your understanding of the IB learning expectations. This is VERY GOOD practice.

1.1 Notes
A detailed set of notes, prepared by Jacob Cedarbaum, examining U5 - U7 and A3 - A4, (slides 33-42) of the IB learning expectations.
(OLD Syllabus)
A series of questions, prepared by Jacob Cedarbaum, to help check your understanding of the IB learning expectations. This is VERY GOOD practice.Answers (OLD).


Created by the University of Utah, this interactive animation enables students to visualize the scale relevant to the microscopic world.
Created by McGraw-Hill, this interactive simulation enables students to enact changes in a cell's structure to determine how they will influence its surface area to volume ratio.
This virtual lab, prepared by the University of Delaware, will help you better understand how to use a compound light microscope as well as how to calculate the size of a specimen. (Practical 1)
Lab - Investigating Cells
This activity will help students learn how to use a compound light microscope in order to view the ultrastructures of various cells as well as to make relevant calculations related to magnification and cell size. (Practical 1)
This reading and set of practice problems will help you understand the various calculations involved when viewing specimen using a microscope. (Practical 1)
Complete this worksheet to practice calculating total magnification, field of view (diameter) and size of a specimen.
Complete this worksheet for additional practice with more challenging problems covering similar material to the previous worksheet.
Created by the University of Utah, this interactive presentation outlines what stem cells are and how they are related to the development of living organisms. Click HERE to see more stem cell resources from the University of Utah.
A short assignment designed to better understand Stargardt's Disease and one other condition.

Must Watch Videos

'Introduction to Cell Theory' by Living Science Lessons via Aron Ra (8:17)

This video describes the formulation of the cell theory as relevant discoveries were made due to advancements in microscope technology.

'2.1.6 Explain the importance of the surface area to volume ratio as a factor limiting cell size' by Staphanie Castle (2:44)

This video outlines the reasons why a cell's surface area to volume ratio is important using a fantastically visible demonstration.

'What are stem cells?' by Craig A. Kohn with TED-Ed (4:10)

This video describes what stem cells are and how scientists are using them to treat illness.

'Stargardt Disease' by American Macular Degeneration Foundation (1:23)

This video outlines the affect of Stargardt Disease on the retina and describes how stem cells can be used to treat the disorder.

'Calculating Size of an Object' by MrLeavittScience (8:32)

This video clarifies how we can determine the actual size of an object when viewing it through a microscope at varying magnifications. It's a little long but easy to understand.


'Why are you multicellular?' by It's Okay To Be Smart (6:06)

This video outlines the evolution of multicellular organisms while examining some of the reasons why multicellular organisms have been successful.

'Stem Cells' by Nucleus Medical Media (5:02)

This video outlines the different types of stem cells that exist within the human body as well as how stem cell therapy can be used to treat illness.