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Assessment presentation Presentation Transcript

  • 1. Assessment presentation Kayla Edwards 3rd period
  • 2. standard • Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane in maintaining homeostasis and cell reproduction
  • 3. Cells
  • 4. What’s the difference between a prokaryote and a eukaryote • do not have a • Prokaryotes are not found in humans and eukaryotes are • Prokaryotes are always and are • Prokaryotes reproduce and divide by and eukaryotes reproduce and divide by and nucleusprokaryotes eukaryotesunicellular multicellular Binary fission mitosis meiosis Vocab 1. Prokaryotes- any cellular organism that has no nuclear membrane, 2. Nucleus- the control center of all cells 3. Multicellular-composed of several or many cells. 4. Unicellular-composed of one cell 5. eukaryotes- any cellular organism that has a nuclear membrane 6. Binary fission- asexual reproduction in unicellular organisms by division of two daughter cells 7. Meiosis-the type of cell division that results in four daughter cells with half the number of chromosomes of the parent cell 8. Mitosis- a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent cell.
  • 5. What are some similarities of prokaryotes and eukaryotes • Both have a • Both have a • Both contain • They both have Cell membrane cytoplasm Genetic material ribosomes Vocab 1. Cell membrane- the semi permeable membrane surrounding the cytoplasm of a cell. 2. Cytoplasm- the material or protoplasm within a living cell, excluding the nucleus. 3. Genetic material- materials found in the nucleus, which play a fundamental role in determining the structure and nature of cell substances.(Dna or rna) 4. Ribosomes- Small round particles in a cell made up of rna and protein
  • 6. Functions of cell organelles
  • 7. Cell wall a tough, flexible but sometimes fairly rigid layer that surrounds some types of cells. Location – prokaryotic cells Function-support and protect the cell
  • 8. Cell membrane The cell membrane is the semi permeable membrane surrounding the cytoplasm of a cell. Location-both prokaryotic and eukaryotic cells Function- controls movement of materials in/out of cell and maintains homeostasis
  • 9. How does the cell membrane maintain homeostasis • The cell membrane is a double phospholipids membrane. This keeps water from flowing through when sodium or potassium concentrations are higher or lower on one side of the membrane. Vocab Homeostasis- The process carried out by the human body to maintain a constant temperature.
  • 10. Nucleus The nucleus is the control center of the cell location- eukaryotic cells Function-controls the cells activities
  • 11. Nuclear membrane The double-layered membrane surrounding the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm. Location-eukaryotic cells Function- Controls movement of materials in and out of nucleus
  • 12. cytoplasm The cytoplasm is the material or protoplasm within a living cell, excluding the nucleus. Location- both eukaryotic and prokaryotic cells Function- supports ands protects cell organelles Vocab 1. the colorless material comprising the living part of a cell, including the cytoplasm, nucleus, and other organelles
  • 13. Endoplasmic reticulum (e.r) The endoplasmic reticulum is a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane Location-eukaryotic cells Function- carries materials through cell
  • 14. Ribosome Ribosomes are Small round particles in a cell made up of rna and protein Location- both eukaryotic and prokaryotic cells Function- produces proteins Vocab 1. Rna – ribonucleic acid 2. Protein- any of a class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids and are an essential part of all living organisms
  • 15. mitochondrion A mitochondrion is a rod shaped organelle found within the cytoplasm of eukaryotic cells Location- eukaryotic cells Function- breaks down sugar molecules into energy Vocab 1. Organelle- any of a number of organized or specialized structures within a living cell.
  • 16. vacuole A vacuole is a space or vesicle within the cytoplasm of a cell, enclosed by a membrane and typically containing fluid Location-eukaryotic cells(more prone in plant cells) Function- store food, water, waste
  • 17. lysosome A lysosome is a cell organelle containing enzymes that digest particles and that disintegrate the cell after its death . Location-eukaryotic cells Function- breaks down larger food molecules into smaller molecules Vocab 1. Enzymes- a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction 2. Molecules- a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction 3. Disintegrate- break up into small parts
  • 18. chloroplasts Chloroplast is a plastid that contains chlorophyll and in which photosynthesis takes place. Location- eukaryotic cells( only plants) Function- uses energy from sun to make food for the plant (photosynthesis) Vocab 1. Photosynthesis- the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water 2. Chlorophyll- a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis 3. Plastid- any of a class of small organelles, such as chloroplasts, in the cytoplasm of plant cells, containing pigment or food.
  • 19. Cilium Cilium is a short, microscopic, hair like vibrating structure location- outside a eukaryotic cell Function- to help move the cell around Vocab 1. Microscopic- being so small that it cant be seen with a naked eye
  • 20. Flagellum Flagellum is a slender threadlike structure, esp. a microscopic whip like appendage that enables many protozoa, bacteria, sperm atozoa Location- on the outside of a prokaryotic cell Function- to help prokaryotes move around
  • 21. Game time • http://quizlet.com/_nn9sz