The Cell Part III Flashcards
subdivided into an intermembrane compartment and an inner matrix compartment
MITOCHONDRIA
contain granules within the matrix that bind the divalent cations Mg+2 and Ca+2
MITOCHONDRIA
contain all of the enzymes of the krebs (TCA) cycle
MITOCHONDRIA
consists of disk-shaped cisternae (saccules) arranged in a stack
GOLGI COMPLEX (APPARATUS)
pale area near the nucleus
GOLGI COMPLEX (APPARATUS)
processing of non-cytosolic proteins synthesized in the RER
GOLGI COMPLEX (APPARATUS)
membrane retrieval, recycling and redistribution(renewal of cell membrane)
GOLGI COMPLEX (APPARATUS)
characterized by a visible cytoplasmic surface coat
COATED VESICLES
2 varieties of coated vesciles:
● clathrin-coated vesicles
● clathrin
formed during endocytosis
3 LEGGED STRUCTURE
associated with signal-directed transport
3 LEGGED STRUCTURE
non-clathrin-coated vesicles
3 LEGGED STRUCTURE
involved in the transport of proteins from RER to golgi,
3 LEGGED STRUCTURE
one golgi cisterna to another
3 LEGGED STRUCTURE
golgi complex to plasma membrane
3 LEGGED STRUCTURE
associated with constitutive protein transport
3 LEGGED STRUCTURE
dark staining body containing hydrolytic enzymes
LYSOSOMES
essential for intracellular digestion
LYSOSOMES
TYPES OF LYSOSOMES:
a. Multivesicular bodies/endosomes
b. Phagolysosomes/phagosomes + lysosomes
c. Auto-phagolysosomes
d. Residual bodies
also known as microbodies
PEROXISOMES
membrane-bound, ovoid
PEROXISOMES
has oxidative enzyme for the breakdown of hydrogen peroxide and alcohol
PEROXISOMES
pair of cylindrical rods (0.2 µm wide and 0.5 µm long) oriented at right angles to one another
CENTRIOLES
located in the centrosome (cell center)
CENTRIOLES
direct the formation of spindle fiber during cell division
CENTRIOLES
forms the bases of cilia and flagella (mother centriole)
CENTRIOLES
lifeless accumulations of material
INCLUSIONS
not metabolically active
inclusions
temporarily present
● Glycogen
● Lipid Droplets
● Lipofuscin
INCLUSIONS
structural framework within the cytosol.
CYTOSKELETON
maintaining cell shape by providing cellular support
CYTOSKELETON
stabilizing cell attachment
CYTOSKELETON
facilitating endocytosis and exocytosis
CYTOSKELETON
promoting cell motility
● Microtubules
● Microfilaments
● Intermediate Filaments
● Microtrabecular Lattice
CYTOSKELETON
control various activities of the cell essential for reproduction and heredity transmission
NUCLEUS
contains genetic apparatus encoded in the deoxyribonucleic acid (DNA) of chromosomes
NUCLEUS
directs protein synthesis in the cytoplasm via:
➢ ribosomal RNA (rRNA)
➢ messenger RNA (mRNA)
➢ transfer RNA (tRNA
NUCLEUS
Nucleus includes:
➢ Nuclear Envelope
➢ Nucleolus
➢ Nucleoplasm
➢ Chromatin
surrounds the nuclear material
NUCLEAR ENVELOPE
consists of two parallel membranes separated from each other by a narrow perinuclear cisterna
NUCLEAR ENVELOPE
perforated at intervals by openings called nuclear pores
NUCLEAR ENVELOPE
well-defined nuclear inclusion (sometimes > one)
NUCLEOLUS
eccentrically placed within the nucleus
NUCLEOLUS
not membrane-bound
NUCLEOLUS
present in cells actively synthesizing protein
NUCLEOLUS
generally detectable only when cell is in interphase
NUCLEOLUS
involve in synthesis of rRNA and its assembly into precursors of ribosomes
NUCLEOLUS
Portion of the protoplasm that is surrounded by the nuclear envelope
NUCLEOPLASM
Consists of a matrix and various types of particles
NUCLEOPLASM
double-stranded DNA complexed with histones and acidic proteins
CHROMATIN
responsible for RNA synthesis
CHROMATIN