L2a - Cytoplasm

6
6/26/2012 1 Cytoplasm and Nucleus Lecture IIa Bismark Oliver C. Lemana, M.Sc. Biological Sciences Department, College of Science University of Santo Tomas, Manila The smallest living structure of life Eukaryotic cells True nucleus Organelles are prominent eg. Animal and plant cells The Cell

description

Histology

Transcript of L2a - Cytoplasm

  • 6/26/2012

    1

    Cytoplasm and

    Nucleus

    Lecture IIa

    Bismark Oliver C. Lemana, M.Sc. Biological Sciences Department, College of Science University of Santo Tomas, Manila

    The smallest living structure of life

    Eukaryotic cells

    True nucleus

    Organelles are prominent

    eg. Animal and plant cells

    The Cell

  • 6/26/2012

    2

    The Cell

    Major Components:

    Nucleus

    Cytoplasm

    Plasmalemma (cell membrane)

    Eukaryotic Cell

    Stomach section Striated muscle section

  • 6/26/2012

    3

    Other cellular components:

    Plasmalemma-associated components

    Integrins

    Cytoplasm-associated components

    Organelles (membranous and non-membranous)

    cytosol

    Inclusions (deposits of carbs, pigments, etc.)

    Cytoskeleton

    To be discussed further on the next lecture

    Eukaryotic Cell

    Plasmalemma

  • 6/26/2012

    4

    Plasmalemma

    Transmembrane

    Proteins

  • 6/26/2012

    5

    Endocytosis

    Receptor-mediated

    endocytosis

  • 6/26/2012

    6

    Cytosol Fluid part of the cell

    Membranous organelles Mitochondria Golgi apparatus ER Lysosomes

    Non-membranous organelles Ribosomes proteosomes

    Cytoplasm

    Contains the blueprint of all cells

    Components:

    Nuclear envelope

    Chromatin

    nucleolus

    Nucleus

    Liver section (hepatocytes)