, TEST BANK FOR ADVANCED PHYSIOLOGY AND
PATHOPHYSIOLOGY LATEST EDITION!! |
COMPLETE CHAPTERS INCLUDED|A+ PASS
ALREADY WITNESSED|PROVIDED WITH
CORRECT AND ACCURATE QUESTIONS&
ANSWERS
Metabolic absorption In metabolic absorption, all cells take in and use nutrients and
other substances from their surroundings.
Nucleus The nucleus contains the nucleolus, a small dense structure composed largely of
RNA, most of the cellular DNA, and the DNA-binding proteins, such as the histones, which
regulate its activity.
Peroxisomes Peroxisomes are so named because they usually contain enzymes that use oxygen
to remove hydrogen atoms from specific substrates in an oxidative reaction that produces H2O2,
which is a powerful oxidant and potentially destructive if it accumulates or escapes from
peroxisomes.
Lysosomes The lysosomal membrane acts as a protective shield between the powerful
digestive enzymes within the lysosome and the cytoplasm, preventing their leakage into the
cytoplasmic matrix.
Digestive enzyme development sequence The enzyme is transcribed from DNA by RNA in
the nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to
the cell membrane.
Enzyme transcription process The enzyme is transcribed from DNA by RNA in the
nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to the
cell membrane.
Cell cycle phases The four designated phases of the cell cycle are: (1) the G1 phase (G =
gap), which is the period between the M phase (M = mitosis) and the start of DNA synthesis; (2)
the S phase (S = synthesis), during which DNA is synthesized in the cell nucleus; (3) the G2
phase, during which RNA and protein synthesis occurs; and (4) the M phase, which includes
nuclear and cytoplasmic division.
Organic compound for transportation Proteins act as (1) recognition and binding units
(receptors) for substances moving in and out of the cell; (2) pores or transport channels for
various electrically charged particles called ions or electrolytes and specific carriers for amino
,acids and monosaccharides; and (3) specific enzymes that drive active pumps that promote the
concentration of certain ions, particularly potassium (K+), within the cell while keeping
concentrations of other ions, for example, sodium (Na+), below the concentrations found in the
extracellular environment.
Diseases related to proteolytic cascades Understanding the various steps involved in
proteolytic cascades is crucial for designing drug interventions for autoimmune and malignant
disorders.
Structure preventing water-soluble molecules The lipid bilayer prevents water-soluble
molecules from entering cells across the plasma membrane because it is impermeable to most
water-soluble molecules.
Fluid mosaic model The fluid mosaic model accounts for the flexibility of cellular membranes,
their self-sealing properties, and their impermeability to many substances.
Cell communication methods Protein channel (gap junction) is used to communicate within the
cell itself and with other cells in direct physical contact.
Plasma membrane-bound signaling molecules Molecules involving receptors that affect the
cell itself and other cells in direct physical contact.
Hormone secretion The release of signaling molecules such as neurotransmitters.
Extracellular chemical messengers Chemical signals such as ligands that communicate
between cells.
Chemical signaling categories Three categories: (1) local-chemical mediator, (2) hormone,
and (3) neurotransmitter.
Paracrine signaling A mode of chemical signaling where local chemical mediators are quickly
taken up, destroyed, or immobilized.
Neurotransmitters Chemical signals secreted by neurons to stimulate an adjoining cell.
Acetylcholine A neurotransmitter that stimulates the movement of a muscle cell.
Hormonal signaling A mode of chemical signaling that uses blood to transport communication
to cells some distance away.
Local-chemical mediator A secreted chemical that acts on the cells in the immediate
environment.
Guanosine triphosphate (GTP) A molecule that can act as a second messenger in signaling
pathways.
Adenosine triphosphate (ATP) A molecule that provides energy for cellular processes.
Adenosine monophosphate (AMP) A second messenger involved in signaling pathways.
, Guanosine diphosphate (GDP) A molecule that can act in signaling pathways but is not a
second messenger.
Chemical messengers Ligands that bind to specific membrane receptors to facilitate
communication.
Second messenger pathways Two major pathways are cyclic AMP (cAMP) and calcium
(Ca++).
Glycolysis A process that provides energy for the cell under anaerobic conditions, producing
a net of two ATP per glucose molecule.
Oxidative phosphorylation The mechanism by which energy from carbohydrates, fats, and
proteins is transferred to ATP.
Oxidative cellular metabolism A process that involves the use of oxygen to produce ATP
from nutrients.
Tricarboxylic acid phosphorylation A less common mechanism for ATP production not
primarily associated with oxidative phosphorylation.
Passive transport Transport driven by osmosis, hydrostatic pressure, and diffusion.
Receptors Proteins that can bind with substances being transported.
Signal molecules Hundreds of kinds of molecules used by cells to communicate, such as
insulin.
Postsynaptic membrane The membrane of a neuron or muscle cell that receives signals
from neurotransmitters.
Ligands Chemical messengers that bind to receptors on target cells.
Cellular communication The process by which cells receive signals from their environment.
Extracellular fluid The fluid surrounding cells that contains signaling molecules.
Direct physical contact A method of communication between cells that involves physical
interaction.
Chemical signaling The process by which cells communicate through the release and reception
of chemical signals.
Passive transport A process where water and small electrically uncharged molecules move
easily through pores in the plasma membrane's lipid bilayer, driven by osmosis, hydrostatic
pressure, and diffusion.
Active transport A mechanism that requires energy and receptors capable of recognizing
and binding with substances to move them into the cell.
PATHOPHYSIOLOGY LATEST EDITION!! |
COMPLETE CHAPTERS INCLUDED|A+ PASS
ALREADY WITNESSED|PROVIDED WITH
CORRECT AND ACCURATE QUESTIONS&
ANSWERS
Metabolic absorption In metabolic absorption, all cells take in and use nutrients and
other substances from their surroundings.
Nucleus The nucleus contains the nucleolus, a small dense structure composed largely of
RNA, most of the cellular DNA, and the DNA-binding proteins, such as the histones, which
regulate its activity.
Peroxisomes Peroxisomes are so named because they usually contain enzymes that use oxygen
to remove hydrogen atoms from specific substrates in an oxidative reaction that produces H2O2,
which is a powerful oxidant and potentially destructive if it accumulates or escapes from
peroxisomes.
Lysosomes The lysosomal membrane acts as a protective shield between the powerful
digestive enzymes within the lysosome and the cytoplasm, preventing their leakage into the
cytoplasmic matrix.
Digestive enzyme development sequence The enzyme is transcribed from DNA by RNA in
the nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to
the cell membrane.
Enzyme transcription process The enzyme is transcribed from DNA by RNA in the
nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to the
cell membrane.
Cell cycle phases The four designated phases of the cell cycle are: (1) the G1 phase (G =
gap), which is the period between the M phase (M = mitosis) and the start of DNA synthesis; (2)
the S phase (S = synthesis), during which DNA is synthesized in the cell nucleus; (3) the G2
phase, during which RNA and protein synthesis occurs; and (4) the M phase, which includes
nuclear and cytoplasmic division.
Organic compound for transportation Proteins act as (1) recognition and binding units
(receptors) for substances moving in and out of the cell; (2) pores or transport channels for
various electrically charged particles called ions or electrolytes and specific carriers for amino
,acids and monosaccharides; and (3) specific enzymes that drive active pumps that promote the
concentration of certain ions, particularly potassium (K+), within the cell while keeping
concentrations of other ions, for example, sodium (Na+), below the concentrations found in the
extracellular environment.
Diseases related to proteolytic cascades Understanding the various steps involved in
proteolytic cascades is crucial for designing drug interventions for autoimmune and malignant
disorders.
Structure preventing water-soluble molecules The lipid bilayer prevents water-soluble
molecules from entering cells across the plasma membrane because it is impermeable to most
water-soluble molecules.
Fluid mosaic model The fluid mosaic model accounts for the flexibility of cellular membranes,
their self-sealing properties, and their impermeability to many substances.
Cell communication methods Protein channel (gap junction) is used to communicate within the
cell itself and with other cells in direct physical contact.
Plasma membrane-bound signaling molecules Molecules involving receptors that affect the
cell itself and other cells in direct physical contact.
Hormone secretion The release of signaling molecules such as neurotransmitters.
Extracellular chemical messengers Chemical signals such as ligands that communicate
between cells.
Chemical signaling categories Three categories: (1) local-chemical mediator, (2) hormone,
and (3) neurotransmitter.
Paracrine signaling A mode of chemical signaling where local chemical mediators are quickly
taken up, destroyed, or immobilized.
Neurotransmitters Chemical signals secreted by neurons to stimulate an adjoining cell.
Acetylcholine A neurotransmitter that stimulates the movement of a muscle cell.
Hormonal signaling A mode of chemical signaling that uses blood to transport communication
to cells some distance away.
Local-chemical mediator A secreted chemical that acts on the cells in the immediate
environment.
Guanosine triphosphate (GTP) A molecule that can act as a second messenger in signaling
pathways.
Adenosine triphosphate (ATP) A molecule that provides energy for cellular processes.
Adenosine monophosphate (AMP) A second messenger involved in signaling pathways.
, Guanosine diphosphate (GDP) A molecule that can act in signaling pathways but is not a
second messenger.
Chemical messengers Ligands that bind to specific membrane receptors to facilitate
communication.
Second messenger pathways Two major pathways are cyclic AMP (cAMP) and calcium
(Ca++).
Glycolysis A process that provides energy for the cell under anaerobic conditions, producing
a net of two ATP per glucose molecule.
Oxidative phosphorylation The mechanism by which energy from carbohydrates, fats, and
proteins is transferred to ATP.
Oxidative cellular metabolism A process that involves the use of oxygen to produce ATP
from nutrients.
Tricarboxylic acid phosphorylation A less common mechanism for ATP production not
primarily associated with oxidative phosphorylation.
Passive transport Transport driven by osmosis, hydrostatic pressure, and diffusion.
Receptors Proteins that can bind with substances being transported.
Signal molecules Hundreds of kinds of molecules used by cells to communicate, such as
insulin.
Postsynaptic membrane The membrane of a neuron or muscle cell that receives signals
from neurotransmitters.
Ligands Chemical messengers that bind to receptors on target cells.
Cellular communication The process by which cells receive signals from their environment.
Extracellular fluid The fluid surrounding cells that contains signaling molecules.
Direct physical contact A method of communication between cells that involves physical
interaction.
Chemical signaling The process by which cells communicate through the release and reception
of chemical signals.
Passive transport A process where water and small electrically uncharged molecules move
easily through pores in the plasma membrane's lipid bilayer, driven by osmosis, hydrostatic
pressure, and diffusion.
Active transport A mechanism that requires energy and receptors capable of recognizing
and binding with substances to move them into the cell.
