Animal Cells Every once living thing is composed of cells. Cells are small organisms that control everything in living things. When an organism is made of one or more cells it is called a multi cellular organism. The first person to discover cells was Richard Hooke. The cells that he saw were the dead cells of cork. When he first saw them they reminded him of the cells that nearby monks lived in. there are many different parts of the cell but all serve a purpose. These many parts of the cells are
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In life’s hierarchy‚ cells make up the lowest level of organization. Cells can perform activities required to sustain life. A cell’s ability to divide to form new cells is the basis for growth and repair in organisms. Cells also play a key role in the recycling of carbon‚ a chemical element essential to life‚ and also participate in cellular processes such as photosynthesis. With these points in mind‚ it should be noted that cells come in one of two forms: prokaryotic and eukaryotic. By investigating
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1.) Cells are complex and incredible structures that through series of reactions can create cellular energy‚ reproduce genetic material and eliminate waste products. Eukaryotic cells are more complex than prokaryotic cells and it is believed that they evolved from prokaryotes. What are 3 major characteristics that distinguish eukaryotes from prokaryotes? Choose 2 pieces of evidence (that we learned about in class) and explain how they support the theory that eukaryotes evolved from prokaryotes
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Criteria Achieved Y/N Resubmission Achieved Y/N Resubmission Achieved Y/N P1 describe the organisation of the eukaryotic cell in terms of the functions of the organelles Y/N P2 describe the four different tissue types Y/N M1 use diagrams or micrographs to compare and contrast the four tissue types Y/N D1 explain the relationship between cells‚ tissues‚ organs and organ systems in the organisation of the human body Y/N Student Declaration I declare that this assignment
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1. Eukaryotic cells have a true nucleus‚ bound by a double membrane. Prokaryotic cells have no nucleus. The purpose of the nucleus is to sequester the DNA-related functions of the big eukaryotic cell into a smaller chamber‚ for the purpose of increased efficiency. This function is unnecessary for the prokaryotic cell‚ because its much smaller size means that all materials within the cell are relatively close together. Of course‚ prokaryotic cells do have DNA and DNA functions. Biologists describe
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Plant Cell Structures Instructions: Your lab report will consist of the completed tables. Label each structure of the plant and animal cell with its description and function in the tables provided. When your lab report is complete‚ post it in Submitted Assignment files. 1. Animal Cell: Observe the diagram showing the components of an animal cell. Using the textbook and virtual library resources‚ fill in the following table: Animal Cell |Number |Cell Structure
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The nucleus is a large membrane bound organelle. Most cells have a single nucleus though skeletal muscle can have more than one (multinucleate) or some cells such as red blood cells have no nucleus. The nucleus contains the genetic material and is where DNA replication and RNA transcription occur. The nucleus is bound by a membrane which contains nuclear pores. These pores allow RNA molecules and proteins to move in and out of the nucleus. However‚ this process is selective and is energy dependent
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1401 Dr. Erin Schuenzel February 13‚ 2014 Bacterial and Eukaryotic Cell Structures All organisms are composed of cells which are characteristically microscope in size. Cell size is limited by the efficiency of diffusion across the plasma membrane. A typical eukaryotic cell is 10 to 100 micrometers in diameter opposed to prokaryotic cells are 1 to 10 micrometers in diameter. Bacterial and Eukaryotic cells display different cell organization in their size and structure‚ but despite this all they
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Science 9-Biology Observing Cell Division Lab Purpose: To use the microscope to observe and sketch plant cells and animal cells in various stages of the cell cycle. Equipment and Materials: Compound Microscope Laptops Prepared Slide of Onion (Allium) Root Tips Prepared Slide of Whitefish Mitosis BC Science 9 Text pg. 162-163 Part 1-Plant Cells Procedure: 1. Take a prepared slide of an onion tip root and observe it under low power
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Eukaryotic vs. Prokaryotic cells Prompt: Describe the similarities and differences between Prokaryotic and Eukaryotic cells. All organisms are made of cells. The cell is the simplest collection of matter that can be alive. Cells are the basic structural and functional units of every organism. Cells fall into two distinct types: Prokaryotic and Eukaryotic. While Prokaryotic and Eukaryotic cells are similar in that both types of cells are bounded by a plasma membrane‚ all contain cytosol‚ and all
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