Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and...
Transcript of Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and...
![Page 1: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/1.jpg)
Ch. 7 Cellular Structure and Function
p. 180 -207
![Page 2: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/2.jpg)
7.1 Cell Discovery and Theory
p. 182-186
![Page 3: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/3.jpg)
Big Idea
Cells are the structural and functional units of
all living organisms
![Page 4: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/4.jpg)
7.1 Cell Discovery and Theory
p. 182-186
![Page 5: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/5.jpg)
Essential Question
What are the differences between prokaryotic and
eukaryotic cells?
![Page 6: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/6.jpg)
Main Idea
• The invention of the microscope led to the discovery of cells.
![Page 7: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/7.jpg)
Robert Hooke
• Made a simple microscope • Observed small, box-shaped structures in a
piece of cork • Most scientists observed tiny organisms
using the first microscopes
![Page 8: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/8.jpg)
Cell
• The basic structural and functional unit of all living organisms
![Page 9: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/9.jpg)
Anton van Leeuwenhock
• Designed a microscope that allowed him to see living organisms in pond water, milk, and various other substances
![Page 10: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/10.jpg)
Cell Theory
1. All living organisms are composed of one or more cells
2. Cells are the basic unit of structure and organization of all living organisms
3. Cells arise only from previously existing cells, with cells passing copies of their genetic material on to their daughter cell
![Page 11: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/11.jpg)
Microscopes
• Compound light microscope - Utilizes a series of glass lenses and visible light to magnify an image
• Magnifies up to 1000 times
![Page 12: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/12.jpg)
•
![Page 13: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/13.jpg)
Microscopes
• Electron Microscopes uses magnets to aim a beam of electrons at an object to produce an image
• Magnifies up to 500,000 times
![Page 14: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/14.jpg)
Pollen
•
![Page 15: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/15.jpg)
Plasma Membrane
• A special boundary that helps control what enters and leaves the cell
![Page 16: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/16.jpg)
Eukaryotic cells
• Contain a nucleus and other organelles that are bound by membranes
![Page 17: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/17.jpg)
Prokaryotic cells • Cells without a nucleus or other membrane-
bound oragnaelles
![Page 18: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/18.jpg)
Comparison of Eukaryotic and Prokaryotic cells
• Eukaryotic Cells – True nucleus – Membrane-bound
organelles – Usually larger in size – Example: cells that
make up a human
• Prokaryotic Cells – No true nucleus – No membrane-bound
organelles – Smaller in size – Example: bacteria
![Page 19: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/19.jpg)
End of 7.1
![Page 20: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/20.jpg)
7.2 The Plasma Membrane
p. 187-190
![Page 21: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/21.jpg)
Main Idea
• The plasma membrane helps to maintain a cell’s homeostasis
![Page 22: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/22.jpg)
Essential Question What is the plasma membrane and what
is its function?
![Page 23: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/23.jpg)
Homeostasis
• Is maintaining balance in an organism’s internal environment
![Page 24: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/24.jpg)
Plasma Membrane
• Responsible for maintaining homeostasis in a cell
• A thin flexible boundary between a cell and its environment
• Allows nutrients into the cell and allows waste and other products to leave the cell
![Page 25: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/25.jpg)
Selective permeability
• When a membrane allows some substances to pass through while keeping others out
![Page 26: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/26.jpg)
p. 187, fig 7.5 (right)
• What substances are allowed into the cell by the plasma membrane?
• What substances are allowed out of the cell by the plasma membrane?
• What is selective permeability?
![Page 27: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/27.jpg)
p. 187, fig 7.5 (right)
• What substances are allowed into the cell by the plasma membrane? – Water, oxygen and glucose
• What substances are allowed out of the cell by the plasma membrane? – Water, wastes and carbon dioxide
• What is selective permeability? – When a membrane allows some substances to pass
through, and keeps others out
![Page 28: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/28.jpg)
Phospholipid bilayer
• 2 layers of phospholipids arranged tail-to-tail
• This arrangement allows the membrane to exist in watery environments
![Page 29: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/29.jpg)
Phospholipid
• Polar head – faces the watery environment – Is attracted to the water
• Nonpolar tail – faces each other
![Page 30: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/30.jpg)
Find the polar head, and nonpolar tail
![Page 31: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/31.jpg)
Phospholipid bilayer
• Functions to separate the environment inside the cell from the environment outside of the cell
![Page 32: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/32.jpg)
Transport Proteins
• Move substances or waste materials through the plasma membrane
![Page 33: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/33.jpg)
Proteins • Transmit signals inside the cell • Act as a support structure • Provide pathways for substances to enter
and leave
![Page 34: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/34.jpg)
Cholesterols
• Prevent fatty acid tails from sticking together
![Page 35: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/35.jpg)
Carbohydrates
• Identify chemical signals
![Page 36: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/36.jpg)
Fluid mosaic model
The phospholipid bilayer allows other molecules to “float” in the membrane.
![Page 37: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/37.jpg)
End of 7.2
![Page 38: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/38.jpg)
7.3 Structure and Organelles
p. 191 - 200
![Page 39: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/39.jpg)
Main Idea
• Eukaryotic cells contain organelles that allow the specialization and the separation of functions within the cell
![Page 40: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/40.jpg)
Essential Question What are the component parts of a cell and what
are their functions?
![Page 41: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/41.jpg)
Cytoplasm
• The environment inside the plasma membrane that is a semifluid material
![Page 42: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/42.jpg)
Cytoskeleton
• A supporting network of long, thin protein fibers that form a framework for the cell and provide an anchor for the organelles inside the cell
• Made up of microfilaments and microtubules
![Page 43: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/43.jpg)
Nucleus
• “manages” the cell • Contains DNA that stores genetic
information
• Nucleolus – where ribosomes are made
![Page 44: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/44.jpg)
Nuclear Membrane
• Double membrane that surrounds the nucleus
• Nuclear pore –opening that allows larger-sized substances to move in and out of the nucleus
![Page 45: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/45.jpg)
Ribosome
• Help manufacture proteins • Made up of RNA and protein
![Page 46: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/46.jpg)
Endoplasmic Reticulum
• Aka ER • A membrane system of folded sacs and
interconnected channels that serves as the site for protein and lipid synthesis
• Rough ER – area of ER where ribosomes are attached
• Smooth ER – area of the ER where there are no ribosomes attached
![Page 47: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/47.jpg)
Golgi Apparatus
• A flattened stack of membranes that modifies, sorts, and packages proteins for distribution into and outside of the cell
![Page 48: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/48.jpg)
Vacuole
• A sac used to store food, enzymes, and other materials needed by a cell
• Mostly found in plant cells
![Page 49: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/49.jpg)
Lysosomes
• Vesicles that contain substances that digest excess or worn-out organelles and food particles
![Page 50: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/50.jpg)
Centrioles
• Groups of microtubules • Function during cell division • We will learn more about these in ch. 9
![Page 51: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/51.jpg)
Mitochondria
• “energy generators” that convert fuel particles (sugars) into usable energy
• Aka “powerhouse” of the cell
![Page 52: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/52.jpg)
Chloroplast
• Organelles that capture light energy and convert it to chemical energy through a process called photosynthesis
• Only found in plant cells
![Page 53: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/53.jpg)
Cell Wall
• Thick, rigid mesh of fibers that surrounds the outside of the plasma membrane, protecting the cell and giving it support
• Only in plant cells
![Page 54: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/54.jpg)
Cilia and Flagella
• Structures that project outside the plasma membrane
• Cilia – short, numerous projections that look like hairs
• Flagella – long, less numerous projections that move in a whiplike motion
![Page 55: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/55.jpg)
![Page 56: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/56.jpg)
![Page 57: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/57.jpg)
End of 7.3
![Page 58: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/58.jpg)
7.4 Cellular Transport
p. 201 - 207
![Page 59: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/59.jpg)
Main Idea
• Cellular transport moves substances within the cell and moves substances into and out of the cell
![Page 60: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/60.jpg)
Essential Question How are substances moved
into and out of a cell?
![Page 61: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/61.jpg)
Diffusion
• The net movement of particles from an area where there are many particles of the substance to an area where there are fewer particles of the substance
• Example: a drop of ink in water
![Page 62: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/62.jpg)
Dynamic equilibrium
• The condition in which there is continuous movement but no overall change
• Example: ink that has been dropped in water last hour
![Page 63: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/63.jpg)
Facilitated Diffusion
• Substances move into the cell through a water-filled transport protein called a channel
• The protein is “facilitating” the diffusion of the water
![Page 64: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/64.jpg)
Osmosis
• Diffusion of water across a selectively permeable membrane
• Look at fig 7.22 pg. 203
![Page 65: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/65.jpg)
Isotonic solution
• A solution that has the same concentration of water and solutes (ions, sugars, proteins) – Iso means same
![Page 66: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/66.jpg)
Hypotonic solution
• A solution that has a lower concentration of solute – There is more water outside the cell than in it – Cell swells
![Page 67: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/67.jpg)
Hypertonic solution
• The concentration of the solute outside of the cell is higher than inside – Cell shrivels
![Page 68: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/68.jpg)
Active Transport
• The movement of substances across the plasma membrane against a concentration gradient
• Requires energy • Example: sodium-potassium ATPase pump
![Page 69: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/69.jpg)
Endocytosis
• The cell engulfs an object • Example: cellular eating in unicellular
organisms
![Page 70: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/70.jpg)
Exocytosis
• The secretion of materials at the plasma membrane
• Example: to expel waste from a cell
![Page 71: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/71.jpg)
End of 7.4
![Page 72: Ch. 7 Cellular Structure and Function 134 Ch. 7 Cellular... · Cells are the structural and functional units of all living organisms . 7.1 Cell Discovery and Theory ... • Responsible](https://reader033.fdocuments.us/reader033/viewer/2022041521/5e2e35825795e36f060cdec3/html5/thumbnails/72.jpg)
End of ch. 7