kiele
Uploaded by
12 SLIDES
239 VUES
120LIKES

Understanding Cells: The Fundamental Units of Life

DESCRIPTION

Cells are the basic structural, functional, and biological units of all living organisms, derived from the Latin word "cella," meaning small chamber. Historically, notable figures have contributed to cell theory: Robert Hooke observed cork cells, Anton van Leeuwenhoek discovered bacteria and protozoa, Robert Brown identified the nucleus in plant cells, and Matthias Schleiden and Theodore Schwann established that both plants and animals are composed of cells. Key components of a cell include the cell membrane, cytoplasm, and nucleus, each performing vital functions that sustain life.

1 / 12

Télécharger la présentation

Understanding Cells: The Fundamental Units of Life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CELL

  2. DEFINITION • Is the basic form of life • The structural, functional and biological unit of all organisms • From Latin, cella(small chamber)

  3. HISTORY • ROBERT HOOKE- “Cork have cell” • ANTON VAN LEEUWENHOEK-observe bacteria and protozoa • ROBERT BROWN- Discover the plant’s nucleus • MATTHIAS SCHLEIDEN- plants have cell • THEODORE SCHWANN-animal have cell

  4. PARTS OF THE CELL • CELL MEMBRANE(Body guard of the cell) • CYTOPLASM(Living part of the cell) • NUCLEUS(command center)

  5. CELL MEMBRANE • --the fluid mosaic model (S.J Singer) -- semi-permeable--fluid portion is a double layer of phospholipids, called the phospholipids bi-layer

  6. JOB OF THE CELL MEMBRANE • Isolate the cytoplasm from the external environment • Regulate the exchange of substances • Communicate with other cells • Identification

  7. CYTOPLASM • Endoplasmic reticulum(smooth and rough) • Ribosomes • Vacuole(plant) and Vesicle(animal) • Golgi apparatus(golgi bodies) • Mitochondria(power house) • Chloroplast(plants only)

  8. CYTOPLASM • cytoskeleton • lysosome • Centrioles • Cell wall

  9. NUCLEUS • Nuclear membrane • Chromosomes • Nucleolus • Nuclear pore • chromatin

  10. THE END

More Related