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Mrs. Kreiselman, Biology



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2.Assign. Cells, Memb.

BIOLOGY A: CELLS, Membranes

Assignment Sheet: Mrs. Kreiselman

Last update: 11.01.09

Last UPDATE: 11.01.09

Date

Class Topic

Class Activity

HW / Reading (day  assigned)

Monday

Oct. 12

Water polarity, Hydrophobicity

* Grapes in Soda Demo

* Supplemented by the Lava-Lamp effect.

* Notes: Water properties

 

* Post Test - Review

 

*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

Tuesday

13

Staff

POST-TEST Review

Post Test – Review Cont.

 

Wednesday

14

PSAT

 

 

Periods 5,6: Test1 (Biomolecules) Make-ups

 

Thursday

15

BackToSchool

(Absent)

Membranes – Formation and Structure

Phospholipid Bilayer, Semipermeable

* Demo: Bottle of two liquids.

* Powernotes: Membranes

* Animations: Membranes

 

* 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

Friday

16

 

Membrane Structure and function: LAB

Fluid Mosaic property

 

 

* Lab Analysis Questions

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

Tuesday

20

Staff

Diffusion, Osmosis, semi-permeable membrane

Lab: Dialysis, Introduction

 

HONORS: Lunch meeting: Osmoregulation

 

Wednesday

21

 

Diffusion, Osmosis, semi-permeable membrane

Lab: Dialysis, Part One

- Powerpoint notes: Passive Transport

 

Thursday

22

Facilitated diffusion, Passive and Active Transport, protein channels, protein pumps, concentration gradient.

- Dialysis Lab: Report.

- Egg experiment: conclusions

.

- Video + Notes PART ONE

 

* 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

Friday

23

Membrane Structure and Transport

- Mini review

QUIZ:

 

Monday

26

Passive and Active Transport

 

- Powernotes, Active Transport

- Videonotes – Complete

- In Review: Active or Passive? (red/blue notes)

 

 * Power notes cont.: Active transport

* Videonotes cont.

Tuesday

27

Cells – general Structure, prokaryotes and eukaryotes

 

* Levels of organization

- Powers of Ten clip

* Sorting cards:

- Cellular or not cellular?

- What is a basic cell?

 

* “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:

1) Why are prokaryotes considered to be more ancient than eukaryotes?

2) Explain the endosymbiotic theory of cellular evolution.

 

Due: Thursday

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

Thursday

29

Eukaryote Cell Structure: plant and animals cells. Microscopes

Microscope Lab: Fresh Preparations of Elodea, onion leaf, cheek cells, bacteria slides.

 

Friday

30

Eukaryote Cell Structure: plant and animals cells. Microscopes

Microscope Lab: Cont.

 

 

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

Tuesday

3

Cell Structure / Vesicular Transport: ER and Golgi

* Vesicular Transport of proteins – Notes

 

* Review Guide

- Mandatory: 10 questions

- More: Extra credit

Due: Thursday

Wednesday 4

Review

 

 

Thursday

5

TEST2: Membranes, Cells

 

 

Friday

6

 

metabolism

 

 


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