Transcript Cellular Transport Notes (7.4)

7.4 – Cellular Transport
State Standards
SB1a
Explain the role of cell organelles for both
prokaryotic & eukaryotic cells, including the cell
membrane, in maintaining homeostasis & cell
reproduction.
SB1d
Explain the impact of water on life processes (i.e.
– osmosis/diffusion)
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Cellular Transport
 There are various mechanisms that transport
materials _____ and _____ of the cell. All of
them involve the plasma ____________ and
are at the heart of ____________.
 There are _____ types of movement across
the plasma membrane:
 ____________ Transport
and
 ____________ Transport
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
 Movement of particles across the cell membrane
____________ using ____________
 There are _____ types of passive transport:
 ____________
 ____________ Diffusion
and
 ____________
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport – Cont’d
Type 1: ____________
 Movement of substances across the cell
membrane from and area of ________
concentration to an area of ________
concentration.
HIGH
LOW
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
Diffusion Cont’d
 Having different concentrations in different
areas creates a ____________ ____________,
and molecules will naturally move from high to
low.
Students:
Draw arrows on
the diagram to
show which
direction the
particles will
move.
7.4 – Cellular Transport
Passive Transport – Cont’d
More Diffusion Pics
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
 The solute
concentration is
____________ inside
Dynamic ____________
& outside the cell
Diffusion – Cont’d
 Molecules continue to
____________, but
the overall
concentration remains
the ____________.
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport - Cont’d
Type 2: ____________ ___________
 ____________ of materials across the plasma
membrane ____________ a ____________
 THIS DOES ______ REQUIRE ____________!
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport Cont’d
Type 3: ____________
 Diffusion of ____________ across a
selectively permeable membrane.
 Water will naturally
move from where it is
____________
concentrated to where
it is ________
concentrated.
 This does ________
require energy!
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
Osmosis Cont’d
 ____________
affects the
movement of
water
 _____tonic Solution – think “____________”
 _____tonic Solution – ________ solute concentration
 _____tonic Solution – ________ solute concentration
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
Osmosis Cont’d
In an ____________ Environment…
 Water and dissolved substances diffuse into and
out of the cell at an ________ rate.
Plant Cell
Blood Cell
11,397x
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
Osmosis Cont’d MEMORIZATION TIP: “________-________”
In a ____________ Environment…
 ____________ concentration is higher
____________ the cell.
 Water diffuses ________ the cell.
Plant Cell
Blood Cell
13,000x
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Passive Transport
Osmosis Cont’d
MEMORIZATION TIP: “________ ________”
In a ____________ Environment…
 Solute concentration is higher ____________
the cell.
 Water diffuses ________ of the cell.
Plant Cell
Blood Cell
13,000x
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Active Transport
 A process that uses ____________ to move
molecules across the cell membrane.
 There are _____ types of active transport:
 Active Transport using ____________ proteins.
 ________cytosis
 ________cytosis
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Active Transport
with Carrier Proteins
 Uses __________ to __________ molecules
across the cell membrane from a region of
__________ concentration to a region of
__________ concentration. This movement goes
__________ the natural concentration gradient.
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Active Transport Cont’d
The Na+/K+ ATPase Pump
 Moves three
__________ ions
______ of the cell
and two
__________ ions
_______ the cell
Use your prior knowledge:
What is ATPase??
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Active Transport Cont’d
____________
 Process by which the
cell uses __________ to
surround __________
particles and bring them
__________ the cell
Chapter 7
Cellular Structure and Function
7.4 Cellular Transport
Active Transport Cont’d
____________
 Secretion of a
large amount of
material ______
of the plasma
membrane