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Transcript
Warm-Up Answer the following questions in complete sentences. By which process is the carbon in dead organisms released into the atmosphere? Carbon in dead organisms is released into the atmosphere by… What is the difference in the function between lipids and carbohydrates? The difference in function between lipids and carbohydrates is… By which process is the carbon in dead organisms released into the atmosphere? 1. 2. 3. 4. Dehydration synthesis Cellular combustion Cellular respiration in decomposers Photosynthetic decomposition What is the difference in the function between lipids and carbohydrates? 1. 2. 3. 4. lipids comprise starch and carbohydrates make up fatty foods lipids provide long-term energy and carbohydrates provide short-term energy lipids are found in decomposers and carbohydrates are found in plants lipids provide structure to the cell and carbohydrates provide genetic information Cell Theory UNIT 4 Cell Theory Watch the video, then answer the following question below in a complete sentence: https://www.youtube.com/watch?v=yKW4F0Nu-UY Describe one “machine” you see moving around the cell. What is it doing? One machine looks like… and it is… UNIT 4 Cell Theory • Robert Hooke discovered the first cells using a microscope. UNIT 4 Cell Theory • Robert Hooke discovered the first cells using a microscope. • Anton van Leeuwenhoek discovered the first living, moving cells using a microscope. UNIT 4 Cell Theory • Robert Hooke discovered the first cells using a microscope. • Anton van Leeuwenhoek discovered the first living, moving cells using a microscope. • Cell Theory: All life has one or more cells UNIT 4 Cell Theory • Robert Hooke discovered the first cells using a microscope. • Anton van Leeuwenhoek discovered the first living, moving cells using a microscope. • Cell Theory: All life has one or more cells Cells are the smallest unit of life UNIT 4 UNIT Cell Theory • Robert Hooke discovered the first cells using a microscope. • Anton van Leeuwenhoek discovered the first living, moving cells using a microscope. • Cell Theory: All life has one or more cells Cells are the smallest unit of life New cells are made through division of an old cell. 4 new cell old cell old cell time Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. UNIT 4 Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. • All cells contain: DNA (information to make “machines”) UNIT 4 DNA Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. • All cells contain: DNA (information to make “machines”) A cell membrane (border where waste/nutrients are exchanged) UNIT cell membrane 4 DNA Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. • All cells contain: DNA (information to make “machines”) A cell membrane (border where waste/nutrients are exchanged) Cytoplasm (watery gel filling up the cell) UNIT cytoplasm cell membrane 4 DNA Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. • All cells contain: DNA (information to make “machines”) A cell membrane (border where waste/nutrients are exchanged) Cytoplasm (watery gel filling up the cell) Ribosomes (make proteins) UNIT cytoplasm cell membrane 4 DNA ribosome Cell Theory • Bacteria are called “prokaryotic” and are the most basic cells. • All cells contain: DNA (information to make “machines”) A cell membrane (border where waste/nutrients are exchanged) Cytoplasm (watery gel filling up the cell) Ribosomes (make proteins) Proteins (“machines” that do the cell’s work) UNIT cytoplasm cell membrane 4 protein (“machine”) DNA ribosome Turn-And-Talk With a partner, answer the following questions out loud in complete sentences: • • • • • • What provides the cell with the information to make proteins? Information to make proteins in the cell is provided by… What “machines” are responsible for performing most of a cell’s function? The machines responsible for performing most of the cell’s function are… What is the boundary surrounding the cell? The boundary surrounding the cell is… How does a new cell get made? A new cell gets made by… What is the watery solution that fills up the cell called? The watery solution that fills up the cell is the… Which is bigger: a cell or an organ? How do you know? A ___________ is bigger than a __________ because… UNIT 4 Closure Answer the following question in a complete sentence: Describe the difference between Hooke’s and van Leeuwenhoek’s discoveries. Suggested sentence stem: Hooke discovered…, whereas van Leeuwenhoek discovered… Name/Nombre Date/Fecha Period ____