Virus explores cell interactive

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Presentation transcript:

Virus explores cell interactive Cool cell animation

RELATIVE SIZES OF THINGS

CHARACTERISTICS OF PROKARYOTIC CELLS no membrane bound organelles (e.g. nucleus) have a cell wall but different from plant cell wall e.g. bacteria AUTOTROPHS an organism able to make its own food chemoautotrophs HETEROTROPHS need to consume food for energy

EVOLUTION OF EUKARYOTIC CELLS FROM PROKARYOTIC CELLS autotroph became heterotroph once lost cell wall Membrane bound organelles formed Consumed mitochondria/chloro plast type prokaryotes Formed endosymbiotic relationships

Neutrophil migration across bone marrow

B cell Portion of pancreas cell

NUCLEUS nucleolus (pl. nucleoli) nucleoplasm chromatin nuclear membrane nuclear pore

Alzheimer's and the ER ER recognizes and targets excess proteins for degradation. If overloaded, a stress response is switched on. Prolonged stress leads to cell death and neuronal loss in Alzheimer's (who have excess protein in brain)

GOLGI APPARATUS functional and structural impairments have been found in Alzheimer’s patients

THE MAKING, MODIFYING, AND TRANSPORT OF PROTEINS Info to make proteins Ribosomes on RER make primary structure of proteins GA modifies proteins Vessicle transports proteins e.g. lysosome

LYSOSOMES AT WORK Tay Sachs disease has dysfunctional lysosomes leads to paralysis, dementia, blindness, and death Common in Quebeckers, jews

MITOCHONDRION

Tracking hominid migration through mitochondrial DNA

Mitochondria and Aging

CENTROSOME WITH CENTRIOLES

MICROVILLI

flagelli cillia

cell wall membrane chloroplast mitochondrion vacuole (tonoplast)

CHLOROPLAST

JUNCTIONS BETWEEN CELLS Tight junction Gap junction

Desmosomes

Cell membrane Cell wall cytoplasm ribosomes nucleus Golgi apparatus mitochondrion ER chloroplast centriole lysosome prokaryote animal plant

TYPES OF ANIMAL CELLS A. Epithelial cells

B. Blood or Vascular Cells

C. Nervous

D. Muscle

E. Connective and Supportive

PLANT CELL TYPES

MERISTEMATIC CELLS Cell division takes place here

PARENCHYMA CELLS Variety of functions in the plant

COLLENCHYMA alive SCLERENCHYMA dead

Homework Choose one type of cell and discuss how it is structured to perform is function. Identify any organelles that are particularly important for that type of cell.