physiology- cell and its function
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physiology- cell and its function
This is the major principal fluid medium of the Cell?
Water is present in almost every cell in the body except?
the concentration of water in the cell?
where does chemical reaction take place? (2)
dissolve chemicals and surface of suspended particles or memebrane
this are different substances that make up the cell?
composition of protoplasm?
water, electrolyte, protein, lipids, carbohydrates
2 major parts of the cell?
Nucleus and cytoplasm
the separating membrane of the nucleus and the cytoplam?
it provides inorganic chemical for chemical reaction?
they are necessary for operation of some of the control mecanism?
it compose the 10-20% of the cell?
2nd most abundant subtance in the cell?
2 types of protien?
structural and functional
this are polymers that forms long filaments?
this forms the cytoskeleton of cellular organelles?
extracellularly, where are structural protein found?
colagen and elastin fibers
this is composed of combination of a few molecules in tubular-globular form?
functional protien are what usually in cells?
mostly are adherent to membranoud structure inside the cell?
2% of the total cell mas?
this is also known as neutral fat?
this is the bodies main storehouse of energy giving nutrient?
this accounts to 95% of fat cells cell mass?
% of carbohydrate in total cell mass?
% of carbohydrate in muscle cell?
% of carbohydrate in liver cells?
it is always present in the surrounding extracellular fluid?
carbohydrates is almost always stored as?
insoluble polymer of glucose that can be depolymerized and used rapidly to supply cells' energy need?
this envelopes the cell?
thin, PLIABLE, elastic struture?
how thick is a cell membrane?
7.5-10 nano meter
protein component of cell membrane? (%)
phospholipid component of cell membrane? (%)
cholesterol component of cell membrane? (%)
lipids component of cell membrane? (%)
carbohydrate component of cell membrane? (%)
thin, double-layered film of lipids?
these may serve as receptor for water soluble chemicals?
this acts as secondary messengers?
receptor + protiesn
this are often atteched to the integral protein?
this function almost entirely as enzymes or as controllers of transport of substances through the cell membrane pores?
fluid portion of cytoplasm?
contains dissolved protein, electrolytes and glucose?
the loose carbohydrate coat of the cell?
cell charge of most cells?
a network of tubular and flat vesicle structure in the cytoplasm?
this are well developed in the cells that secrets and produce protein?
composed of micture of RNS and protein which synthesize new proteins?
site of translation of mRNA and postranslation modification of proteins that are destined to be secreted that are destined to be secreted from the cell?
site where many substances are detoxified?
sarcoplamic reticulum is found in?
skeletal and cardiac muscle
for muscel contraction?
composed of four or more layers stacked layers of thin flat, enclosed vesicles lying near one side of the nucleus?
prominent in secretory cells?
this provides enzymes that control glycogen breakdown?
250-750nm in diameter
PH of the acidic interior of the lysosomes
this is the process where intracellular organelles of the cell are degraded?
physically similar to lysozomes?
formed by self replication?
they contain oxidases?
pancreatic acinar cells are examples of what?
a high energy substance?
currently thought that they evolved from an aerobic prokaryote that lived within primitive prokaryote cells?
providing rigid physical structure?
examples are actin and myosion?
this are critical in contraction?
this are the core of microvilli
links interior of the cell to the extracellular matrix through desmosomes and hemidesmososmes?
important in chromosome movement during mitosis?
this prevents polymerization of the tubulin dimers?
6 function of plasma membrane?
determination of cell shape
size of eukaryotic plasma membrane?
how many aquaporins have been identified?
found in excitatory cells
depends on the direction ions moving?