2. Active Transport

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9/7/10-Pick up your book & take out
your magic square wkst from Friday
to be checked.
Do-Now:
Create flashcards for the 16 terms listed on p.
182 of your book. Put the word on one side
and the definition on the other.
Any extra time should be spent STUDYING
for your quiz (chemistry and
macromolecules).
Do-Now:
• What does passive transport mean?
• List two examples of passive transport from
the reading assignment.
8/23/11-Pick up your book & set out
your homework to be checked. Any extra
time should be spent STUYDING for
your cell test today!!!!
Do-Now:
1. List the characteristics of living things.
2. Contrast prokaryotes & eukaryotes.
3. The organelle responsible for making proteins is
the ____.
4. The organelle that transports materials for a cell is
the____.
Warm up, egg observations, review sheet, test, vocab
8/24/11-Get your book & pick up
the word puzzle.
COPY & ANSWER the following questions on a
BLANK SHEET of paper.
1. How do you think you did on the cell test?
2. Honestly, how long did you study?
3. Have you seen Mrs. C or Mrs. L for help?
4. What could YOU do to improve your grade?
5. What could WE do to help you?
Complete the Transport Word Search quietly when
you are done. You will be turning this in.
1/30/12Pick up the Handout at the back for you and
your row.
Place on each person’s desk. Please & Thank
you. !!
Get your Osmosis Lab out from Friday. If
you were not here. Look in the “Missed
Assignment” Tray for your class.
1/30/12Define the following terms on a clean sheet of
Paper. Title: Cellular Transport
1. Passive Transport-transport that does not
require the use of energy
2. Diffusion
3. Osmosis
4. Facilitated Diffusion
5. Isotonic
6. Hypotonic
7. Hypertonic
Cellular Transport
Essential Questions:
How does fertilizer affect the growth or
death of plants?
How would changing the environment
of a fish from fresh to salt water affect
its survival rate?
Why is it so important to have the
proper concentration of an “IV drip”
while you are in the hospital?
In your notes section:
• Define SOLUTE and SOLVENT.
• Highlight these definitions. They are VERY
important!
Cell Transport
1.Passive transport - particles
move into and out of a cell
without using any energy from
the cell.
*Think of going down a slide…
A. Diffusion - movement from areas
of high concentration to lower
concentration.
B. Osmosis - diffusion of water
across a membrane
(1) isotonic - when
concentration is equal on both
sides of membrane
(2) hypotonic - when the salt or
solute concentration is low outside
of cell. The water will move into the
cell. The cell will swell.
Animals cells can burst (cytolysis).
Some animals have contractile vacuoles
to remove excess water.
Plant cells will be rigid (turgor)
(3) hypertonic - when solute
concentration is greater outside of
the cell. The water will be pulled out
of the cell.
The animal cell will shrivel up
(crenated).
normal red blood cell
crenated red blood cell
A plant cell cytoplasm will
shrivel up away from the cell
wall (plasmolysis)
normal elodea cell
plasmolysis
C. Facilitated Diffusion -the
transport of specific particles
through a membrane by a carrier
protein
ION CHANNELS
• Protein channels that only certain
ions can pass through, such as
sodium, potassium, calcium, and
chloride.
• Does not require energy
Read p. 182-187
1/31/12
• Take out & Work on the Crossword from
yesterday…& your Osmosis Lab
• Take out your 7 Vocabulary Words for cell
transport.
• Take out your osmotic solutions wkst.
• There will be 7 questions posted on the next
slide. Answer them in your do-now section
using COMPLETE SENTENCES.
Answer the following questions
using complete sentences.
1. Define passive transport.
2. List the 4 types of passive transport we discussed.
3. The movement of substances from areas of high
concentrations to low concentrations is ____. List
2 examples of this.
4. The diffusion of water across a membrane is ____.
5. Using carrier proteins to transport particles through
a membrane is ____
6. If you put a cell into a hypotonic solution, what
will happen?
7. If you put a cell into a hypertonic solution, what
will happen?
Define the following terms; add
to your Cell Transport Vocab:
1.
2.
3.
4.
5.
Active Transport
Endocytosis
Exocytosis
Phagocytosis
Pinocytosis
2. Active Transport - using energy to
transport a particle through a
membrane against a concentration
gradient
*Think of climbing up a slide…
A. Carrier proteins - they bond and
drag molecules across to the other
side
B. Sodium-Potassium Pump - The
most important energy using
process in your body. (1/3 of all the
energy) For every 3 sodium ions
(Na+) pumped out, two potassium
ions(K+) are pumped in.
C. Coupled channels -pulls food
molecules (glucose) into the cell
with the sodium ion
Ticket to Leave
• Draw pictures to depict hypertonic,
hypotonic, and isotonic.
2/1/12-Take out Egg Lab, HW, Crossword
Do-Now:
1. Why is it dangerous for humans to drink ocean
water?
2. True or False? If a cell is in an isotonic
solution, the molecules do not move.
3. The shrinking of plant cells is ___. This
happens in a ___ solution.
4. The shrinking of animal cells is ___. This
happens in a ____ solution.
D. Endocytosis - engulfing
the particles too large to pass
through the membrane
1. pinocytosis (cell drinking) taking in drops of liquid containing
large molecules
2. phagocytosis (cell eating) taking of other cells, cell fragments
or large organic particles into the
cell
E. Exocytosis - dumping of
wastes, or excretions or secretions
across the cell membrane
Read p. 188-189
Recall the structure of the Cell
Membrane…
1.The cell membrane is a double
layer.
2. It is composed of phospholipids and proteins.
3.The structure of a
Head
phospholipid

Tail
4. The phospholipids are arranged
with the heads out and the tails in.
Hydrophilic
Heads
Protein
Hydrophobic
Tails
5. Proteins are in the double layer
and serve several different
functions.
a) Transport proteins –involved in
diffusion and transport
(1) channel proteins
(2) carrier proteins
b) Marker proteins – identify the cell
c) Receptor proteins -involved in cell
communication
Ticket to Leave
• What is the difference between endocytosis
and exocytosis?
• Are these two types of transport ACTIVE or
PASSIVE?
2/2/12- Take out your Pre/suf vocab
& your Review Sheet….any
extra time..study/finish crosswd
• Do-Now:
• Does facilitated diffusion use energy?
• Contrast passive and active transport. List at
least two examples of each.
Discovery of a Cell Video Quiz
1. Who was the first person to use a microscope to see cells?
A. Cellulose
B. Hooke
C. Linc
D. Sinker
2. What is the newest kind of microscope that gives three-dimensional
images?
A. electron
C. fiber optic
B. confocal laser-scanning
D. high definition plasma
3. What are organelles that produce energy for a cell called?
A. mitochondria
C. lysosomes
B. cell structures
D. energizers
4. What do ribosomes do for a cell?
A. transfer sodium in and out of the cell
B. perform photosynthesis
C. seek food
D. produce complex proteins
5. Which of these diseases is still a challenge for microbiologists?
A. salmonella food poisoning
C. Lyme Disease
B. smallpox
D. cholera
2/3/12ANSWER the following questions.
1. How do you think you did on the cell transport
test?
2. Honestly, how long did you study?
3. Have you seen me for help?
4. What could YOU do to improve your grade?
5. What could I do to help you?
Complete the Transport Word Search from yesterday
Turn to p206. What is the Chemical equation for
Photosynthesis? What is Photosynthesis?
After your test…
• Complete the EOCT review wkst using the
Passing the Georgia EOCT in Biology
books.
• These books MUST be turned in before the
end of the period.
• NO ONE may take them home.
• NO EXCEPTIONS!!!!!!
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