Cellular Processes and Functions Explained
DO NOW- quick answers!
•
What is the function of the cytoplasm?
•
Name 2 organelles found only in plants:
•
What process happens in the mitochondria?
•
Amino acids are the building blocks of….
•
What type of biological molecule are all enzymes?
•
What are the building blocks of carbohydrates?
•
What numbers on the pH scale are basic?
•
What can starch be broken down into?
•
What is the job of the cell membrane?
Diffusion, Osmosis, and Active
Transport
Science Practice- Day 3
Coach Taylor & Coach Feil
Passive Transport
•
Movement across the membrane that does
NOT require energy
Diffusion
•
The movement of substances from a
high
concentration to a
low
concentration
Diffusion
•
The movement of substances from a
high
concentration to a
low
concentration
•
Moving from where there is
more
of something to
where there is
less
of something
Diffusion
•
The movement of substances from a
high
concentration to a
low
concentration
•
Moving from where there is
more
of something to
where there is
less
of something
•
Molecules will move across the membrane until the
concentration is
equal
on both sides of the
membrane
•
Molecules will diffuse until they are in
equilibrium
I
I
I
I
I
I
I
I
Osmosis
•
The diffusion of
water
•
Water flowing from a
high
concentration to a
low
concentration
Osmosis
•
The diffusion of
water
•
Water flowing from a
high
concentration to a
low
concentration
•
NO ENERGY REQUIRED
Onion (plant) Cells:
•
When an onion cell is placed in a salt water
solution, water will
leave the cell
.
•
The cell membrane will
shrink
as water leaves the
cytoplasm
•
THE CELL WALL WILL
STAY THE SAME
CELL WALL
CELL MEMBRANE
CYTOPLASM
SALT WATER
CYTOPLASM
CELL WALL
CELL MEMBRANE
DISTILLED WATER
(100% H2O, Fresh Water, Pure Water)
Active Transport
•
Movement from a
LOW
concentration to a
HIGH
concentration
•
From where there is
LESS
to where there is
MORE
•
ATP
is required!!!!
•
“Against the concentration
gradient
”
Cell Membrane
•
The cell membrane is the organelle that controls
what enters and leaves the cell
•
“Selectively Permeable”
•
Permeable-
Able to pass through
Permeable
-
small molecules, C
6
H
12
O
6
, H
2
O, O
2
, CO
2
NOT permeable-
big molecules, STARCH
The cytoplasm is essential for cell function, housing organelles like chloroplasts and vacuoles unique to plants. Mitochondria facilitate cellular respiration, while amino acids form proteins. Enzymes are proteins, and carbohydrates consist of simple sugars. Basic pH numbers range from 8 to 14. Starch breaks down into glucose. The cell membrane regulates cell transport. Explore diffusion, osmosis, and passive transport for a deeper understanding of cellular movement.
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Presentation Transcript
DO NOW- quick answers! What is the function of the cytoplasm? Name 2 organelles found only in plants: What process happens in the mitochondria? Amino acids are the building blocks of . What type of biological molecule are all enzymes? What are the building blocks of carbohydrates? What numbers on the pH scale are basic? What can starch be broken down into? What is the job of the cell membrane?
Diffusion, Osmosis, and Active Transport Science Practice- Day 3 Coach Taylor & Coach Feil
Passive Transport Movement across the membrane that does NOT require energy
Diffusion The movement of substances from a high concentration to a low concentration
Diffusion The movement of substances from a high concentration to a low concentration Moving from where there is more of something to where there is less of something
Diffusion The movement of substances from a high concentration to a low concentration Moving from where there is more of something to where there is less of something Molecules will move across the membrane until the concentration is equal on both sides of the membrane Molecules will diffuse until they are in equilibrium
I I I I I I I I
Osmosis The diffusion of water Water flowing from a high concentration to a low concentration
Osmosis The diffusion of water Water flowing from a high concentration to a low concentration NO ENERGY REQUIRED
Onion (plant) Cells: When an onion cell is placed in a salt water solution, water will leave the cell. The cell membrane will shrink as water leaves the cytoplasm THE CELL WALL WILL STAY THE SAME
CELL WALL CELL MEMBRANE CYTOPLASM
CELL WALL CYTOPLASM CELL MEMBRANE
DISTILLED WATER (100% H2O, Fresh Water, Pure Water)
Active Transport Movement from a LOW concentration to a HIGH concentration From where there is LESS to where there is MORE ATP is required!!!! Against the concentration gradient
Cell Membrane The cell membrane is the organelle that controls what enters and leaves the cell Selectively Permeable Permeable- Able to pass through
Permeable- small molecules, C6H12O6, H2O, O2, CO2 NOT permeable- big molecules, STARCH
