NYSED Part D Lab Review.

Slides:



Advertisements
Similar presentations
Diffusion Through a Membrane State Lab
Advertisements

How do the materials needed for life get in and out of cells?
State Diffusion Lab home version
Regents Lab Review. Diffusion and Osmosis Designed to help you understand the concepts of Diffusion and Osmosis and how these cell processes effect the.
1. What does the tubing represent?
Diffusion Through a Membrane
What is diffusion? Movement of a molecule from…….
 Phospholipid-bilayer  Around outside of cell’s cytoplasm  Semi permeable  Regulates what enters and leaves the cell.  Maintains Homeostasis  Protects.
NYSED Part D Lab Review.
NYSED Part D Lab Review.
NYSED Part D Lab Review Thanks to: Michael Comet South Lewis High School Turin, NY
Diffusion Laboratory.
Cell Membrane What’s its function?. How does the membrane control what enters or leaves the cell? PASSIVE TRANSPORT (without energy input) -Diffusion.
How did we use indicators in the Diffusion Lab?
DO NOW! Open you lab notebook to a new page, record today’s date, and the title “Diffusion Through A Membrane.” Write down the definition of diffusion:
Diffusion Through a Membrane. Diffusion Through A Membrane indicator – chemically indicates if a substance is present by changing color Iodine = starch.
Review of NYS Lab Diffusion and Membranes
LAB ONE Diffusion and Osmosis. Background Concepts: diffusion & osmosis selectively permeable membranes water potential molarity LAB ONE Diffusion and.
Movement Through a Membrane
AP Lab 1 Osmosis & Diffusion. Objectives – for main concept  How does osmosis & diffusion work?  Do all particles cross the membrane? Do things flow.
Michael Comet South Lewis High School Turin, NY 13473
Diffusion Lab Notes Reviewing the State Lab. What can we conclude from this lab exercise? The cell membrane regulates what goes in and out of the cell.
#30 How did we observe diffusion in the State Lab? Warm up How did we use indicators in the Diffusion Lab? Find your Diffusion Lab.
Do Now: How did the concept of passive transport apply to our:
Lab Tomorrow: Osmosis & Diffusion Do Now: A student wants to know if water molecules can fit through the microscopic holes in a plastic bag. They fill.
Diffusion through a membrane Lab
Diffusion of Water through a Membrane. Review Cell make up all living things. Red Onions.
Osmosis in a Plant Cell.
Unit 4 Transport of Materials. Key Questions 1. Why must materials enter and leave cells? 2.What materials need to enter and leave cells? 3.What role.
Diffusion & Osmosis Lab
1. What does the tubing represent? 2. What is inside the tubing? Cell membrane Starch & glucose.
Diffusion Through a Membrane
GREEN BOOK REVIEWS – STATE LAB
What will happen to the drop of dye?
NYSED Part D Lab Review.
Cell Transport Cell/Plasma Membrane
Diffusion and Osmosis Demonstrations
1. What does the tubing represent?
Lab #7 Osmosis in Onion Cells
Movement through the cell membrane
How did we use indicators in the Diffusion Lab?
Transport of Molecules in a Cell
Michael Comet South Lewis High School Turin, NY 13473
Diffusion Through a Membrane Lab
State Diffusion Lab home version
1. Can you explain this? 5% Starch Solution
State Mandated Lab Review
Can you explain this? 5% Starch Solution
1. What does the tubing represent?
Michael Comet South Lewis High School Turin, NY 13473
Diffusion Through a Membrane State Required Lab
Plant Cell Osmosis Lab Mrs. Stewart Biology.
Osmosis in Red Onion Cells (more fun with microscopes)
Michael Comet South Lewis High School Turin, NY 13473
Diffusion Through the Membrane
Plant Cell Osmosis Lab Mrs. Stewart Biology.
Diffusion Through a Membrane Lab Review
STATE DIFFUSION LAB Diffusion through a Membrane.
Diffusion Through a Membrane
NYSED Part D Lab Review.
Michael Comet South Lewis High School Turin, NY 13473
6.3 Transport.
1. What does the tubing represent?
Michael Comet South Lewis High School Turin, NY 13473
Cell Model Lab.
Diffusion through a membrane Lab
NYSED Part D Lab Review.
Diffusion Lab Diffusion in a baggie.
Michael Comet South Lewis High School Turin, NY 13473
Diffusion through a Membrane Simulation
Presentation transcript:

NYSED Part D Lab Review

Diffusion

Osmosis

Part 2: Create a “cell” What’s the name of the bag? What does it represent? What were the chemicals in the bag? What chemical was in the beaker? Wait about 15 minutes and observe. Insert into “cellular environment”

Science Experiment - Diffusion Through a Membrane - YouTube

Part 1: Diffusion Diffusion: movement of ______________molecules from an area of _____________ concentration to an area of _________ concentration ____________energy After diffusion occurs… Before diffusion occurs…

After 15 minutes, observe… What happened to the glucose in the “cell”? why? S S G I G G G I I G I G I S S I I I At the beginning… After 15 minutes…

After 15 minutes, observe… What happened to the the starch in the “cell”? Why? S S G I G G G I I G I G I S S I I I At the beginning… After 15 minutes…

After 15 minutes, observe… What happened to the Lugol’s iodine outside the “cell”? Why? S S G I G G G I I G I G I S S I I I At the beginning… After 15 minutes…

What is starch indicator? What is glucose indicator?

How did you know that the Iodine went into the bag? What 2 solutions mixed together made it that color?

When you mix Iodine with distilled water the color turns ___________ When you mix Iodine with glucose, the color turns ______________ When you mix Iodine with starch, the color turns __________

How do you test for the presence of glucose?

When you mix Benedict’s with distilled water the color turns ___________ When you mix Benedict’s with starch, the color turns ______________ When you mix Benedict’s with glucose, the color turns __________

And now, the part that makes you cry (ok, not really, but the “Red Onion” part of the lab)… Prepare a wet mount slide of the inner epidermis of a red onion section; Observe the red onion and draw what you see; Add a couple of drops of saline (salt) solution to the epidermis. Wait 5 minutes; Observe under microscope again, note any changes; Add freshwater to the slide, wait 5 minutes, observe changes again.

Plasmolysis in Red Onion (Techno) – YouTube

Red Onion Plasmolysis Observation Before and after observations of red onion epidermis under the microscope (400X) Red onion under in hypertonic (salt) solution. Note cell membrane has “withdrawn” and the cytoplasm has lost water to the salty environment, making it appear smaller and darker. Red onion under in isotonic (normal) solution. Note cell membrane and cytoplasm almost completely “fill” the boundary of the cell wall.