BIOLOGY A: CELLS, Membranes
Assignment Sheet: Mrs. Kreiselman
Last update: 11.01.09
Last UPDATE: 11.01.09
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Date |
Class Topic |
Class Activity |
HW / |
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Monday Oct. 12 |
Water polarity, Hydrophobicity |
* Grapes in Soda Demo * Supplemented by the Lava-Lamp effect. * Notes: Water properties
* Post Test - Review
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*Homework: Water, Membranes: Source: Pages 40-42, 81-82 1) Explain the word “Polar”. What are two examples of polarity in the world? 2) Why are water molecules attracted to one another? 3) How do polar molecules differ from non-polar molecules? How does this affect their interaction with water? 4) What happens when two non-polar substance are mixed with water at the same location? Due: Wednesday Honors (or EC): i) Go through materials and surfaces in your home, and figure out if they are made of polar or non-polar substances. Explain in detail: How could you tell which is polar and which is non-polar? ii) Science News Opportunity: Use of hydrophobicity in food industry, medicine, cleaning supplies. More… Due: Wednesday |
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Tuesday 13 Staff |
POST-TEST Review |
Post Test – Review Cont. |
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Wednesday 14 PSAT
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Periods 5,6: Test1 (Biomolecules) Make-ups |
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Thursday 15 BackToSchool (Absent) |
Membranes – Formation and Structure Phospholipid Bilayer, Semipermeable |
* Demo: Bottle of two liquids. * Powernotes: Membranes * Animations: Membranes
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* Powernotes: Membranes
* Homework: Membrane Structure. 1) Arrange the following terms in a concept map: fatty acids, glycerol, phospholipids, lipid, membrane (biliayer) 2) Why do phospholipids form a double layer? 3) Draw a lipid bilayer. Label the hydrophobic and hydrophilic sides. 4) Why is the membrane called fluid-mosaic?
Honors or etc: i) Find out what are trans and cis fatty acids. ii) How does each kind affect the fluidity of the membrane? iii) Why are “trans” fatty acids bad for our health? Due: Monday |
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Friday 16
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Membrane Structure and function: LAB Fluid Mosaic property
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* Lab Analysis Questions |
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Monday 19 |
Diffusion, Osmosis, semi-permeable membrane, hypotonic, hypertonic, isotonic |
- Demo: Diffusion and temperature - Powerpoint notes: Osmosis - Handout – Osmosis Cartoon - Egg in Solutions (also blue dye) |
* Power notes: Osmosis and Diffusion * Osmosis Handout Homework: Diffusion Osmosis, Passive Transport pp. 85-86 1) What is a gradient? Give at least tow examples (not only from biology). 2) Why is the membrane called ‘semi-permeable’? 3) What kind of materials can diffuse through the membrane? Give examples. 4) What is the difference and similarity between osmosis and diffusion? Due: Tuesday Honors: Answer with writing and large diagrams. i) What potential dangers do fish in freshwater face in terms of their water and salt balance? What are the problems for marine fish? ii) How are fish of each kind adapted to avoid these problems? Sources: Look up “Osmoregulation in Fish” Due: Friday |
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Tuesday 20 Staff |
Diffusion, Osmosis, semi-permeable membrane |
Lab: Dialysis, Introduction
HONORS: Lunch meeting: Osmoregulation |
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Wednesday 21
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Diffusion, Osmosis, semi-permeable membrane |
Lab: Dialysis, Part One - Powerpoint notes: Passive Transport |
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Thursday 22 |
Facilitated diffusion, Passive and Active Transport, protein channels, protein pumps, concentration gradient. |
- Dialysis Lab: Report. - Egg experiment: conclusions . - Video + Notes PART ONE
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* Homework: Passive and Active Transport Read pages 89-91 Answer: 1) What is the main difference between passive and active transport? 2) Under what conditions would a molecule need to be actively transported across the membrane? 3) Why is facilitated diffusion considered passive transport? 4) What is the purpose of exocytosis and endocytosis? 5) Can exocytosis and endocytosis occur in the same cell? Explain. Due: Friday |
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Friday 23 |
Membrane Structure and Transport |
- Mini review QUIZ: |
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Monday 26 |
Passive and Active Transport
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- Powernotes, Active Transport - Videonotes – Complete - In Review: Active or Passive? (red/blue notes)
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* Power notes cont.: Active transport * Videonotes cont. |
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Tuesday 27 |
Cells – general Structure, prokaryotes and eukaryotes
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* Levels of organization - Powers of Ten clip * Sorting cards: - Cellular or not cellular? - What is a basic cell?
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* “Cellular or not cellular?” Answers.
* Homework: Basic Cell Structures Read p.72-79 Answer: 1) What characteristics are shared by most cells? 2) Compare between prokaryotic and eukaryotic cells. 3) What are the main differences between animal and plant cells? (p.74) 4) Put in order of smallest to largest: Cell, Protein, Organism, Amino acids, Membrane-bound Organelle. |
Honors:
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1) Why are prokaryotes considered to be more ancient than eukaryotes? 2) Explain the endosymbiotic theory of cellular evolution.
Due: Thursday |
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Wednesday 28 |
Cells – general structure, prokaryotes and eukaryotes Microscopes |
* “Cell diversity” – notes with Video-Miscroscope * Demonstration: Microscope use, class display of Elodea cells * Microscope Practice |
* Cell Coloring – By functional color coding. * How Cells Operate- Both Handouts Due Friday |
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Thursday 29 |
Eukaryote Cell Structure: plant and animals cells. Microscopes |
Microscope Lab: Fresh Preparations of Elodea, onion leaf, cheek cells, bacteria slides. |
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Friday 30 |
Eukaryote Cell Structure: plant and animals cells. Microscopes |
Microscope Lab: Cont.
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Monday November 2 |
Eukaryote Cell Structure: plant and animals cells. |
* Ven Diagram: Plant, animal, bacteria * Crawling pond water… * How cells operate |
* Lab Report: Drawings, Calculations of size, Comparisons. Due Today. * Homework: Multiple Choice Questions p.97 1-6; p.605 2; p.661 2, 4; Write question and correct answer, choose and explain your choice.Due: Wednesday |
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Tuesday 3 |
Cell Structure / Vesicular Transport: ER and Golgi |
* Vesicular Transport of proteins – Notes
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* Review Guide - Mandatory: 10 questions - More: Extra credit Due: Thursday |
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Wednesday 4 |
Review |
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Thursday 5 |
TEST2: Membranes, Cells |
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Friday 6
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metabolism |
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