1 / 10

CELLS

CELLS. CHARACTERISITCS. CELLS. There are many types of cells, but we are most familiar with eukaryotic cells, notably plant cells and animal cells These types of cells have many characteristics in common, most notably their organelles, with a few exceptions Only in Plants Only in Animals

ahanu
Download Presentation

CELLS

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. CELLS CHARACTERISITCS

  2. CELLS • There are many types of cells, but we are most familiar with eukaryotic cells, notably plant cells and animal cells • These types of cells have many characteristics in common, most notably their organelles, with a few exceptions • Only in Plants Only in Animals • Chloroplastes • Central vacuole • Cell wall • Lysosomes • Centrioles • Flagella

  3. NUCLEUS • CHROMATIN: material consisting on DNA and proteins; visible as individual chromosomes in a dividing cell • NUCLEOLUS: non-membranous organelle involved in production of ribosomes; a nucleus has one or more nucleoli • NUCLEAR ENVELOPE: double membrane enclosing the nucleus; perforated by pores

  4. ORGANELLES • RIBOSOMES: non-membranous organelles that make proteins; free in cytoplasm or bound to rough endoplasmic reticulum or nuclear envelope • GOLGI APPARATUS: organelle active in synthesis, sorting, and secretion of cell products • PLASMA MEMBRANE: membrane enclosing the cell • MITOCHONDRION: organelle where cellular respiration occurs

  5. ORGANELLES • PLASMA MEMBRANE: membrane enclosing the cell • PEROXISOME: organelle with various specialized metabolic functions; produces hydrogen peroxide • CYTOSKELETON: reinforces cell’s shape, functions in cell movement; components are made of protein

  6. ORGANELLES • ENDOPLASMIC RETICULUM (ER): network of membranous sac and tubes; active in membrane synthesis and other synthetic and metabolic processes; has rough (ribosome-studded) and smooth regions • CENTROSOME: region where the cell’s microtubules are initiated; in an animal cell, contains a pair of centrioles (ONLY IN ANIMAL)

  7. ANIMAL ORGANELLES • FLAGELLUM: locomotion organelle present in some animal cells, composed of microtubules • MICROVILLI: projections that increase the cell’s surface area • LYSOSOME: digestive organelle where macromolecules are hydrolyzed

  8. PLANT ORGANELLES • CHLOROPLASTS: photosynthetic organelle; converts energy of sunlight the chemical energy stored in sugar molecules • CENTRAL VACUOLE: prominent organelle in older plant cells; functions in storage, breakdown of waste products; enlargement of vacuole is a major mechanism of plant growth • CELL WALL: outer layer that maintains cell’s shape and protects cell from mechanical damage; made of cellulose, other polysaccharides, and proteins

More Related