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Home , Homeostasis, Tissue (biology)

Scientific Theory Both Scientific Law Explains how a natural Based on the results of many Describes a natural phenomenon phenomenon works investigations or relationship that always occurs under specific conditions

Often explains more related Supported by a large amount of Often can be represented by a phenomena over time empirical evidence mathematical Formula

Can be modified if new evidence Widely accepted by the majority of Provides no explanation as to why refutes the current statement scientists within a given field of a phenomenon occurs study Cannot be validated by a single Often becomes more limited over person time 2nd section Title: Levels of Organization

Atoms – everything is made up of ( there are different types of atoms) Elements –one – same elements together Compounds – different elements together Cells – Basic unit of – group of similar cells working together to preform a – A collection of tissue that work together to provide a specific function – A collection of organs that work together to provide a specific function – living thing Levels of Organization

• Atoms Patterns in the hierarchical organization • Elements  Atoms make up elements to Organisms • Molecules  Elements make up molecules to Organisms • Compounds • Cells • Tissue • Organ • Organ System  Atoms, elements, molecules, compounds, cells, • Organisms tissue organ, organ system make up organisms Tissue Compound Atom What makes something living?

• Write: What makes something characterized as alive? • Cells • • • Gas Exchanged • • Growth and Development • Response to stimuli • *** Levels of Organization

• Atoms - Smallest Level of Organization • Elements • Molecules • Compounds • Cells – Smallest Level of Living Organisms • Tissue • Organ • Organ System • Organisms – Largest Level of Living Organisms Lesson Launcher – Round 3 – 10/18 A. 1. How can a cell be considered a living organism but an organ composed of millions of cells is not considered a living organism? 2. carries out a specific task to keep cells functioning. What levels of organization make up organelles? 3. What level of organization is being represented in picture A? 4. What level of organization is being represented in picture B? B. Lesson Launcher – Round 3 – 10/18

1. How can a cell be considered a living organism but an organ composed of millions of cells is not considered a living organism? • A single cell organism like a carries out all of life's functions on their own. While a multi-celled organism’s cells work together to keep the organisms alive. Each cell is alive inside of a multi-celled organisms but not considered an organism themselves because they could not function without the other cells in the organism. 2. Organelles carries out a specific task to keep cells functioning. What levels of organization make up organelles? • Atoms – elements-molecules-compounds 3. What level of organization is being represented in picture A? • Tissue 4. What level of organization is being represented in picture B? • Cells 2nd section Title: The At top of page write the following statements and box them. 1. All living things have cells List the following scientists, skipping 3-4 lines between each and take notes during the video. 1. Hooke 2. Cells come 2. Leeuwenhoek from other cells 3. Schleiden 4. Schwann 3. Cells are the 5. Virchow basic unit of life The Discovery of the Cell

Robert Hooke

• looked at thin slices of ( cells) under the . 1665 • Named it a cell Anton van Leeuwenhoek – late 1600’s

Leeuwenhoek made many simple

He was the first to: …. see and describe He observed microorganisms in a drop of pond water, ( bacteria, 1-celled creatures) under dental scrapings, etc. the microscope. All living things have cells

Cells are the basic unit of life On the road to the cell theory... Matthias Schleiden Theodore Schwann

German botanist Zoologist 1838 1839

Schleiden said that all are Schwann said that all are made of cells. made of cells. Matthias Schleiden and Theodore Schwann used evidence gather from their research to propose the first to postulates of the Cell Theory.

1. All living things have cells 2. Cells are the basic unit of life Virchow

In 1858, Rudolph Virchow said that cells could only arise from preexisting cells. The Cell Theory

Draw and Color a Cell Theory Infographic:

1. All living things are composed of cells. 2. Cells are the basic units of living things. 3. New cells are produced from existing cells. Round 3 – Lesson Launcher – 10/21 1. Which list represents the levels of organization in a multicellular organism from the simplest level to the most complex level? A. tissue, cell, organ system B. organ system, organ, tissue, cell C. organ, tissue, organ system D. cell, tissue, organ, organ system

2. An organ system is a group of organs that A. are made of similar cells. B. are made of similar tissues. C. work together in performing a major body function. D. work together in performing all the functions in a multicellular organism. Round 3 – Lesson Launcher – 10/21 1. Which list represents the levels of organization in a multicellular organism from the simplest level to the most complex level? A. tissue, cell, organ system B. organ system, organ, tissue, cell C. organ, tissue, organ system D. cell, tissue, organ, organ system

2. An organ system is a group of organs that A. are made of similar cells. B. are made of similar tissues. C. work together in performing a major body function. D. work together in performing all the functions in a multicellular organism. 2nd Section title: Homeostasis For each underline word write a 1-4 word definition. Then create your own definition for homeostasis.

Homeostasis is the maintenance of internal stable conditions that are necessary for life functions. 2nd section Title: Homeostasis? • Read pages – 134-136 – Answer the following question – Either write the question or answer in a complete sentence. 1. What do cells need to do in order to survive? 2. What is the difference between unicellular and multicellular organisms in maintaining homeostasis? 3. What are the two types of tissue plants use to transport? Describe each of their functions. 4. How do cells get ? 5. Describe . 6. Describe cellular . Round 3 – Lesson Launcher – 10/22

Numbers 1-3- DO NOT use your notes 1. List the levels of organization from smallest to largest. 2. If Robert Hooke and Anton Van Leeuwenhoek did not propose any of the tenets to the cell theory why are they included in its information? 3. List the 3 tenets of the Cell Theory. 4. What is the difference between maintaining homeostasis in a multi-celled organisms vs a unicellular organisms? 5. Why would removing waste be necessary for homeostasis? Round 3 – Lesson Launcher – 10/22 Numbers 1-3- DO NOT use your notes 1. List the levels of organization from smallest to largest. • Atoms – elements-molecules-compounds-cells-tissue-organs-organ system-organisms 2. If Robert Hooke and Anton Van Leeuwenhoek did not propose any of the tenets to the cell theory why are they included in its information? • They paved the way for other scientists because they both built microscopes that allowed scientists to view cells. Hooke named the cell. Leeuwenhoek was the first to observe and describe microorganisms. 3. List the 3 tenets of the Cell Theory. • All living things are composed of cells. • Cells are the basic units of living things. • New cells are produced from existing cells. 4. What is the difference between maintaining homeostasis in a multi-celled organisms vs a unicellular organisms? • A single cell organism like a bacteria carries out all of life's functions on their own. While a multi-celled organism’s cells work together to keep the organisms alive. 5. Why would removing waste be necessary for homeostasis? • If waste builds up it acts as a . Round 4 – Lesson Launcher – 10/23 Do NOT use your notes.

1. List the levels of Organization. 2. List the 3 parts of the cell theory Round 4 – Lesson Launcher – 10/23 • A • Atoms 1. All living things • • E Elements have cells • M • Molecules • C • Compounds • Cells 2. Cells come from • C • Tissue other cells • T • Organs • O • Organ • O Systems 3. Cells are the basic • O • Organisms unit of life Function of organelle in 6 words or less , Picture that Explanation Cell, or represents Both? Organelle Ridged layer -supports / protects cell Plant Brick Wall The Brick wall represents the Cell wall because it protects a city like a cell wall protects the cell Controls what enters and exits / Gatekeeper Both Gate The gate represents the cell membrane because it controls what enters and exits like a cell membrane. Nucleus Cell’s control center / houses DNA Both The brain represents the nucleus because it controls the body like the nucleus controls a cell. Fills inside of cell holds organelles into place Both Gel The gel represents the cytoplasm because it holds hair into place like the cytoplasm holds cell parts into place. Golgi Apparatus Ships ER substances around cell Both Mail room / The mail room / shipping boxes represent the Golgi shipping boxes apparatus because it sends mail to people like the Golgi sends substances around the cell ER Produces substances for cell Both Kitchen Supplies The kitchen supplies represent the ER because they make things like the ER makes things for the cell. Ribosomes Reads DNA to makes Both Ribs The ribs represent the ribosomes because ribs are made up of proteins and ribosomes make proteins. Mitochondria Does Cellular Reparation / produce energy Both apple The apple represents the mitochondria because it Takes in (sugar) + to make energy produces energy for the cell like a apple gives a person + energy.

Vacuoles Stored water, waste and food Both Vacuum The vacuum represents the because they both store waste. Lysosomes Eat particles to be reused Animal Pacman Pacman represents lysosomes because it eats the dots like lysosomes eat cell parts.

Chloroplast Does photosynthesis / produces glucose , oxygen Plant Solar Panels The solar panels represent the because both Takes in sunlight + carbon dioxide + water to use sunlight to create energy. make glucose + oxygen Quiz Review - Scientific Laws vs Theories , Levels of Organization , Cell Theory , Homeostasis, Homeostasis, Animal vs Plants Cell Parts

Individually – 10 minutes 1. List the levels of organization 2. List the 3 postulates of the Cell Theory 3. What are the following scientists known for? • Virchow • Schwann • Anton Van Leeuwenhoek • Schleiden • Robert Hooke 4. What is the difference between scientific theories and laws? 5. Define Homeostasis 6. What two organelles are only found in plant cells? 7. What organelle is only found in an animal cell? 1. List the levels of organization. Atoms – elements – molecules-compounds- cells-tissue-organ-organ system – organism 4. What is the difference between 2. List the 3 postulates of the Cell Theory. 1. All living scientific theories and laws? Laws things have cells;2. Cells come from other cells; 3. describe an event and Theories Cells are the basic unit of life explain an event 3. What are the following scientists known for? 5. Define Homeostasis: maintenance • Virchow – Meat experiment with flies and maggots – of internal stable conditions for life Cells come from other cells functions • Schwann – Observed animal under microscopes and 6. What two organelles are only stated all animals have cells found in plant cells? Chloroplast • Anton Van Leeuwenhoek – built a microscope and was (photosynthesis) and Cell Wall the first to observe and describe microorganisms ( and protection) (bacteria) in dental scrapings, pond water, and etc 7. What organelle is only found in an • Schleiden- Observed plants under microscopes and animal cell? Lysosomes (digest old stated all plants have cells cell parts and particles from • Robert Hooke- built microscope and viewed cork under outside of cell once brought it) microscope and named cells