NLN-PAX Science/ 442 Quizzes with Certified
Solutions/ Newly Updated.
Cell
the smallest living unit and the basic unit of function and structure for
all living things.
Nucleus
contains the genetic information, or DNA, and controls the activities of
the cell.
Page 1 of 47
,Plasma (cell) membrane
separates the contents of the cell from the surrounding fluid (interstitial
fluid)
Semipermeable membrane
refers to the selective nature of the plasma membrane. It contains
pores and channels that allow only particles of the right size or the right
chemical nature to pass through.
Interstitial fluide
contains substances such as amino acids, sugars, fatty acids, hormones,
neurotransmitters, and salts.
Cytoplasm
is the fluid matrix found between the plasma membrane and the
nucleus that acts as scaffolding for the organelles.
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,Organelles
(little organs) are specialized units in the cell that per form certain functions.
Mitochondria
are the locations for cellular respiration, that is, the conversion of food to energy at the cellular level. The
site of energy production and of most of its ATP.
ATP (adenosine triphosphate)
the chemical the cell uses to store and transfer energy within itself.
Ribosomes
are the sites of protein synthesis in the cell
Endoplasmic reticulum (ER)
Ribosomes are attached. Serves as a means for transport within the cell and is made up of many
channels. Rough endoplasmic reticulum named for the fact that it has ribosomes on its surface, serves to
store and deliver the proteins made by the attached ribosomes. Smooth ER is free of ribosomes it
performs varying functions in different cells, including the storage of enzymes and minerals and the
folding of proteins, among other things. It is thought to be involved in the detoxification of chemicals
and the metabolism of fats.
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, Golgi complex
modifies and packages proteins destined for use in the cell or for export from the cell.
Lysosomes
are sacs that contain strong digestive enzymes. These sacs are responsible for digesting cell structures
that are no longer living or that are malfunctioning, and for digesting waste.
Cell wall
Only plant cells have them. It is responsible for the protection of the cell, the maintenance of the shape,
and water balance.
Chloroplasts
contain chlorophyll, which is necessary for photosynthesis.
Vacuoles
Page 4 of 47
Solutions/ Newly Updated.
Cell
the smallest living unit and the basic unit of function and structure for
all living things.
Nucleus
contains the genetic information, or DNA, and controls the activities of
the cell.
Page 1 of 47
,Plasma (cell) membrane
separates the contents of the cell from the surrounding fluid (interstitial
fluid)
Semipermeable membrane
refers to the selective nature of the plasma membrane. It contains
pores and channels that allow only particles of the right size or the right
chemical nature to pass through.
Interstitial fluide
contains substances such as amino acids, sugars, fatty acids, hormones,
neurotransmitters, and salts.
Cytoplasm
is the fluid matrix found between the plasma membrane and the
nucleus that acts as scaffolding for the organelles.
Page 2 of 47
,Organelles
(little organs) are specialized units in the cell that per form certain functions.
Mitochondria
are the locations for cellular respiration, that is, the conversion of food to energy at the cellular level. The
site of energy production and of most of its ATP.
ATP (adenosine triphosphate)
the chemical the cell uses to store and transfer energy within itself.
Ribosomes
are the sites of protein synthesis in the cell
Endoplasmic reticulum (ER)
Ribosomes are attached. Serves as a means for transport within the cell and is made up of many
channels. Rough endoplasmic reticulum named for the fact that it has ribosomes on its surface, serves to
store and deliver the proteins made by the attached ribosomes. Smooth ER is free of ribosomes it
performs varying functions in different cells, including the storage of enzymes and minerals and the
folding of proteins, among other things. It is thought to be involved in the detoxification of chemicals
and the metabolism of fats.
Page 3 of 47
, Golgi complex
modifies and packages proteins destined for use in the cell or for export from the cell.
Lysosomes
are sacs that contain strong digestive enzymes. These sacs are responsible for digesting cell structures
that are no longer living or that are malfunctioning, and for digesting waste.
Cell wall
Only plant cells have them. It is responsible for the protection of the cell, the maintenance of the shape,
and water balance.
Chloroplasts
contain chlorophyll, which is necessary for photosynthesis.
Vacuoles
Page 4 of 47
