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All living Things are Made of Cells
Transcript of All living Things are Made of Cells
that make up the basic structures of living things. Cells Store food
Get rid of waste
Transport materials Organelle Functions All cells have a membrane, which controls what goes in and out of the cell. It surrounds the cytoplasm, which is the fluid that contains organelles. Cell Structure Plant cells are different from animal cells .
They contain organelles that animal cells don't have, such as chloroplasts and a large central vacuole. Plant cells also have a cell wall and can perform photosynthesis. Plant Cell Prokaryotes Prokaryotic cells are simpler than eukaryotic cells. They lack a nucleus and other organelles. DNA is single-stranded and floats freely. Eukaryotes Eukaryotic cells have DNA in the nucleus. They also contain membrane-bound organelles. Introduction This presentation is about cells and their
structures, similarities and differences between plant and animal cells, and how cells divide by mitosis. Enjoy! Animal Cells Animal cells consist of many organelles. Unlike plant cells, they have centrioles. nucleus lysosomes vacuoles endoplasmic
reticulum centrioles mitochondria membrane cytoplasm large central
vacuole ribosomes cell wall golgi complex microfilaments Similarities Between Plant and Animal Cells Both plant and animal cells are eukaryotic. This means they have a nucleus and membrane-bound organelles. They have many of the same organelles. flagella chromosomes cytoplasm Mitosis All cells reproduce. In eukaryotic cells, this process is called mitosis. Chromosomes divide and the cell splits in half, creating two identical daughter cells. Mitosis Stages Interphase During interphase, chromosomes duplicate themselves and the centrosome divides in two. This stage takes the longest. Cell division Cell division is split into two parts: mitosis and cytokinesis. Mitosis Mitosis has four phases- prophase, metaphase, anaphase, and telophase. Prophase Chromatin condenses
Nuclear membrane and nucleolus disappear
Centrosomes move to opposite ends of the cell
Spindlefibers form Metaphase Centromeres of chromosomes attach to spindle fibers
Chromosomes line up along the center of the cell Anaphase Each centromere divides in two
Chromosome pairs separate and are pulled to opposite sides of the cell Telophase The mitotic spindle breaks down
A new nuclear membrane begins to form around each of the daughter chromosomes Telophase Cytokinesis Cytokinesis occurs differently in plant and animal cells. Plant Cells A cell plate forms in the middle of the cell and grows outward
Individual cell membranes form
The cell plate develops into cell walls Animal Cells The cell membrane pinches in the middle
A furrow forms and pinches together until it closes
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