Download Unit 5: Cells and Body Systems

Unit 5: Cells and
Body Systems
Table of Contents
Learning Targets and Study Guide
Cell Theory Video Notes
Cell Theory
Prokaryotic vs. Eukaryotic Cells
Cells and their Organelles Reading
Cells and their Organelles
Cell Organelles
Cell Diagrams
Learning Targets and Study Guide
Learning Target
Activity Got it? Still need to
work in it?
I can provide evidence that all living things are made of one or more
cells
I can model how each individual cell is composed of parts designed for
a specific function
I can describe the function of the individual organs systems
I can support with evidence how the body is a system of subsystems
working together
Study Guide
1. List the three parts of the Cell Theory
2. List the characteristics and examples of each
Single Cell
Multi- Cellular
3. Describe the functions of each organelle
Parts of Cell
Function
Cell Wall
Cell Membrane
Cytoplasm
Nucleus
Nucleolus
Mitochondria
Lysosome
Vacuole
Ribosome
4. Describe the function of each organ system
Organ System
Function
Nervous
Circulatory
Muscular
Skeletal
Digestive
Integumentary
Respiratory
5. How do the body systems work together as whole?
Example 1:
Example 2:
Example 3:
Cell Theory Video Notes
View the video on the “Wacky History of the Cell Theory.” http://ed.ted.com/lessons/the-wacky-history-ofcell-theory#watch and answer the following questions.
1.
List the three parts of the cell theory:
1. All organisms are composed of one or more cells
2. Cells are the basic unit of structure and organization in organisms
3. All cells come from preexisting cells
2.
Name of the spectacle maker from Netherlands – lived in
the early 1600’s
Jansen
3.
What was this scientist famous for?
microscope and telescope
4.
Name of the Dutch scientist who made his own microscope
Van Leeuwenhoek
5.
What famous discovery did this scientist make with his
homemade microscope? How did he make this discovery?
bacteria on dental scrapings
6.
animalcules
What did he call his discovery?
7.
Name of the English scientist who is credited for coming up
with the term “cell”
Hooke
8.
What was this scientist looking at when he came up with
the name “cell?”
cork
9.
reminded him of cells - the rooms that
monks slept in
Why did he call them cells?
10. What did Robert Hooke do to make Sir Isaac Newton mad?
Hooke claimed that Newton was
inspired by his work in physics
11. Why does no one know what Robert Hooke looked like?
portrait was misplaced because of
Newton
12. Name of the German botanist (one who studies plants) from
the 1800’s
Schleiden
13. What discovery was this German botanist famous for?
all plants are made of cells
14. Name of another German scientist from the 1800’s that studied
animals
Schwann
15. What was this German scientist famous for?
all animal cells are made of cells
16. What part of the cell theory did Schleiden and Schwann
disagree on?
The third part
17. What did Schleiden believe?
cells came from Free Cell Formation
18. What did Schwann believe?
cells came from preexisting cells
19. Who was right?
Schwann
20. Name of the scientist that proved all cells come from other cells Virchow - borrowed information
without permission from Remak
Cell Theory
From your paper notebook, insert the picture/information into the corresponding boxes.
Robert Hooke – came
up with the term cell
after looking at a piece
of cork
Cell Theory
1. All organisms are composed of one or more
cells
2. Bells are the basic unit of structure and
function
3. All cells come from preexisting cells
Schleiden and Schwann came up with the cell
theory
Virchow proved the third part of the cell theory
Eukaryotes: plant and animal
Prokaryotes
Prokaryotic vs. Eukaryotic Cells
From your paper notebook, insert the picture/information into the corresponding boxes.
Describe some characteristics of a prokaryotic cell
Picture of prokaryote
no organized nucleus
very small
Describe characteristics both prokaryotic and eukaryotic cells have
Both have DNA
Both are cells
Describe some characteristics of a eukaryotic cell
Picture of eukaryote
DNA located in nucleus
Two types: prokaryotic and eukaryotic
Does a prokaryotic cell have a membrane bound nucleus? No
Where is the DNA found? Floating around the cell
What are examples of these types of cells? Bacteria, virus, amoeba
Multicellular or unicellular? Unicellular
Does a eukaryotic cell have a membrane bound nucleus? Yes
Where is the DNA found? In the nucleus
What are examples of these types of cells? Plant and animal cells
Multicellular or unicellular? Multicellular
Cells and their Organelles Reading
The cell is the basic unit of life. There are two types of cells, prokaryotes and eukaryotes. Prokaryotes are the
simplest of all cells, they lack membrane bound organelles (like a nucleus or mitochondrion). Prokaryotes are
microorganisms that do everything from make cheese to cause strep throat. Eukaryotes are structurally more complex,
larger in size, and have a nucleus. Eukaryotes are broken down into plant and animal cells.
All cells are surrounded by a cell membrane. The cell membrane is semipermeable, allowing some substances to pass
into the cell and blocking others. It is composed of a double layer of phospholipids and embedded proteins. Plant
cells and some prokaryotes have an additional layer surrounding them called the cell wall. The cell wall is made of
nonliving material called cellulose.
The centrioles are a small body located near the nucleus in animal cells. The centrioles are where microtubules are
made. During cell division (mitosis), the centrioles divide and the two parts move to opposite sides of the dividing
cell. Microtubules are shaped like soda straws and give the nucleus and cell its shape.
The nucleus in the center of a eukaryotic cell is a spherical body containing the nucleolus that makes
ribosomes. The nucleus controls many of the functions of the cell (by controlling protein synthesis). It also contains
DNA assembled into chromosomes. The nucleus is surrounded by the nuclear membrane. Materials can move from
the nucleus to the cytoplasm through nuclear pores in the membrane around the nucleus. Prokaryotes do not have a
nucleus, but still contain DNA.
The Cytoplasm is the jellylike material outside the cell nucleus in which the organelles are located. All cells, even
prokaryotes contain small bodies called ribosomes. Proteins are made here by a process called protein synthesis.
Rough endoplasmic reticulum (rough ER) is a vast system of interconnected, membranous, infolded and
convoluted sacks that are located in the eukaryotic cell's cytoplasm. The ER is continuous with the outer nuclear
membrane. Rough ER is covered with ribosomes that give it a rough appearance. Rough ER transports materials
through the cell and produces proteins in sacks called cistern which are sent to the Golgi body, or inserted into the cell
membrane. The Golgi apparatus or Golgi complex is a flattened, layered, sac-like organelle that looks like a stack of
pancakes. The Golgi body modifies & packages proteins and carbohydrates into membrane-bound vesicles for "export"
from the cell. Smooth ER does NOT have ribosomes on its surface. It makes proteins and lipids that will be exported
by the cell. It also controls the Calcium level in muscles and detoxifies poisons, alcohol, and drugs.
Chloroplasts are elongated or disc-shaped organelles containing chlorophyll that trap sunlight for
energy. Photosynthesis (in which energy from sunlight is converted into chemical energy - food) takes place in the
chloroplasts. Only plant cells, not animal cells, can make their own food.
Plant cells also contain one large fluid-filled sac called a vacuole. Animal cells have a few tiny vacuoles. The vacuole fills
with food being digested and waste material that is on its way out of the cell. In plant cells, a large central vacuole takes
up most of the space in the cell.
Mitochondria are spherical to rod-shaped organelles with a double membrane. The inner membrane is infolded many
times, forming a series of projections called cristae. The mitochondrion converts the energy stored in glucose into ATP
(adenosine triphosphate) for the cell. Both plant and animal cells have double membranes and their own DNA. Cells
also contain spherical organelles called lysosomes that contain digestive enzymes. Nutrients are digested by the cell
here, as well as, old cell organelles that are going to be recycled. Flagella and cilia help prokaryotic cells move.
Cells and their Organelles
Use the information from the reading and put the answers to the questions in the column on the RIGHT.
1. At what level of organization does life begin?
2. What are some differences in prokaryotes and eukaryotes?
3. What are the two major types of eukaryotes?
4. What surrounds all cells?
5. What is meant by semipermeable?
6. What 2 things make up the cell membrane?
7. Centrioles are found in what type of cell?
8. Where is DNA found inside a eukaryotic cell?
9. What cell process is controlled by the nucleus?
10. DNA coils tightly in division and assembles into visible
_C_
11. Where are organelles located?
12. Where are proteins made in a cell?
13. Do all cells need ribosomes?
14. The process of making ribosomes is called
15. How does the rough ER differ from the smooth ER?
16. Rough ER is connected to the ______________________ membrane and to _____________ ER.
17. Proteins made by rough ER travel to the Golgi in sacks called _______________. The Golgi
body_____________ and ________________ proteins for export out of the cell.
18. Give 3 jobs of smooth ER.
19. What process takes place inside chloroplasts?
20. In photosynthesis, energy from _______________________ is converted to _____________________.
21. What pigment traps the energy?
22. Chloroplasts are found in what type of cell?
23. Both chloroplasts and mitochondria are alike in that they both have ____________________ membranes and
their own ___________.
24. Food, water, and wastes are stored inside
25. Digestion takes place inside ______________________ containing ______________________.
26. The largest organelle in plants is the
27. What organelle breaks down and recycles worn out cells?
Cell Organelles
Insert a picture and write the function of the cell part.
Cell Part
Mitochondria
Vacuole
Nucleus
Cell Membrane
Cell Wall
Picture
Function
Chloroplasts
Golgi Apparatus (Body)
Ribosomes
Cytoplasm
Lysosome
Microtubules
Centrosomes
Smooth Endoplasmic
Reticulum (Smooth ER)
Rough Endoplasmic
Reticulum (Rough ER)
Centrioles
Vesicle
Cell Diagrams
Directions: Insert the diagram of an animal cell and a plant cell and insert it into this document. In the blanks, label the
diagram
Animal Cell
Plant Cell