assessment presentation
TRANSCRIPT
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Assessment presentation
Kayla Edwards3rd period
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standard
• Explain the role of cell organelles for both prokaryotic and eukaryotic cells, including the cell membrane in maintaining homeostasis and cell reproduction
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Cells
Prokaryote Eukaryote
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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 fissionmitosis meiosis
Vocab1. Prokaryotes- any cellular organism that has no nuclear membrane,2. Nucleus- the control center of all cells3. Multicellular-composed of several or many cells.4. Unicellular-composed of one cell5. eukaryotes- any cellular organism that has a nuclear membrane6. Binary fission- asexual reproduction in unicellular organisms by division of two daughter cells7. Meiosis-the type of cell division that results in four daughter cells with half the number of
chromosomes of the parent cell8. 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.
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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
Vocab1. 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
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Functions of cell organelles
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Cell wall
a tough, flexible but sometimes fairly rigid layer that surrounds some types of cells.
Location – prokaryotic cellsFunction-support and protect the cell
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Cell membrane
The cell membrane is the semi permeable membrane surrounding the cytoplasm of a cell.
Location-both prokaryotic and eukaryotic cellsFunction- controls movement of materials in/out of cell and maintains homeostasis
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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.
VocabHomeostasis- The process carried out by the human body to maintain a constant temperature.
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Nucleus
The nucleus is the control center of the cell
location- eukaryotic cellsFunction-controls the cells activities
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Nuclear membrane
The double-layered membrane surrounding the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm.
Location-eukaryotic cellsFunction- Controls movement of materials in and out of nucleus
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cytoplasm
The cytoplasm is the material or protoplasm within a living cell, excluding the nucleus.
Location- both eukaryotic and prokaryotic cellsFunction- supports ands protects cell organelles
Vocab1. the colorless material comprising the living part of a cell, including the
cytoplasm, nucleus, and other organelles
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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 cellsFunction- carries materials through cell
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Ribosome
Ribosomes are Small round particles in a cell made up of rna and protein
Location- both eukaryotic and prokaryotic cellsFunction- produces proteins
Vocab1. Rna – ribonucleic acid2. 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
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mitochondrion
A mitochondrion is a rod shaped organelle found within the cytoplasm of eukaryotic cells
Location- eukaryotic cellsFunction- breaks down sugar molecules into energy
Vocab1. Organelle- any of a number of organized or specialized
structures within a living cell.
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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
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lysosome
A lysosome is a cell organelle containing enzymes that digest particles and that disintegrate the cell after its death.
Location-eukaryotic cellsFunction- breaks down larger food molecules into smaller molecules
Vocab1. Enzymes- a substance produced by a living organism that acts
as a catalyst to bring about a specific biochemical reaction2. 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
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chloroplastsChloroplast 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)
Vocab1. 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.
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Cilium
Cilium is a short, microscopic, hair like vibrating structure
location- outside a eukaryotic cellFunction- to help move the cell around
Vocab1. Microscopic- being so small that it cant be seen with a naked eye
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Flagellum
Flagellum is a slender threadlike structure, esp. a microscopic whip like appendage that enables many protozoa, bacteria, spermatozoa
Location- on the outside of a prokaryotic cellFunction- to help prokaryotes move around
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Game time
• http://quizlet.com/_nn9sz