NLN NEX Science
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1. Cell the smallest living unit and the basic unit of function and structure for all living
things.
2. Nucleus contains the genetic information, or DNA, and controls the activities of the cell.
3. Plasma (cell) separates the contents of the cell from the surrounding fluid (interstitial fluid)
membrane
4. Semipermeable refers to the selective nature of the plasma membrane. It contains pores and
membrane channels that allow only particles of the right size or the right chemical nature
to pass through.
5. Interstitial fluide contains substances such as amino acids, sugars, fatty acids, hormones, neuro-
transmitters, and salts.
6. Cytoplasm is the fluid matrix found between the plasma membrane and the nucleus that acts
as scaffolding for the organelles.
, NLN NEX Science
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7. Organelles (little organs) are specialized units in the cell that per form certain functions.
8. 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.
9. ATP (adenosine the chemical the cell uses to store and transfer energy within itself.
triphosphate)
10. Ribosomes are the sites of protein synthesis in the cell
, NLN NEX Science
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11. Endoplasmic Ribosomes are attached. Serves as a means for transport within the cell and is
reticulum (ER) 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.
12. Golgi complex modifies and packages proteins destined for use in the cell or for export from the
cell.
13. 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.
14. Cell wall
, NLN NEX Science
Study online at https://quizlet.com/_gd0qtj
Only plant cells have them. It is responsible for the protection of the cell, the
maintenance of the shape, and water balance.
15. Chloroplasts contain chlorophyll, which is necessary for photosynthesis.
16. Vacuoles plant cells also often large ones. Which are compartments in the cytoplasm that
act as places for secretion, excretion, and storage.
17. Chromatin DNA is in this loosely structured form when it is not dividing
18. Chromosomes DNA is seen in condensed rod-shaped bodies when the cell is dividing
Study online at https://quizlet.com/_gd0qtj
1. Cell the smallest living unit and the basic unit of function and structure for all living
things.
2. Nucleus contains the genetic information, or DNA, and controls the activities of the cell.
3. Plasma (cell) separates the contents of the cell from the surrounding fluid (interstitial fluid)
membrane
4. Semipermeable refers to the selective nature of the plasma membrane. It contains pores and
membrane channels that allow only particles of the right size or the right chemical nature
to pass through.
5. Interstitial fluide contains substances such as amino acids, sugars, fatty acids, hormones, neuro-
transmitters, and salts.
6. Cytoplasm is the fluid matrix found between the plasma membrane and the nucleus that acts
as scaffolding for the organelles.
, NLN NEX Science
Study online at https://quizlet.com/_gd0qtj
7. Organelles (little organs) are specialized units in the cell that per form certain functions.
8. 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.
9. ATP (adenosine the chemical the cell uses to store and transfer energy within itself.
triphosphate)
10. Ribosomes are the sites of protein synthesis in the cell
, NLN NEX Science
Study online at https://quizlet.com/_gd0qtj
11. Endoplasmic Ribosomes are attached. Serves as a means for transport within the cell and is
reticulum (ER) 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.
12. Golgi complex modifies and packages proteins destined for use in the cell or for export from the
cell.
13. 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.
14. Cell wall
, NLN NEX Science
Study online at https://quizlet.com/_gd0qtj
Only plant cells have them. It is responsible for the protection of the cell, the
maintenance of the shape, and water balance.
15. Chloroplasts contain chlorophyll, which is necessary for photosynthesis.
16. Vacuoles plant cells also often large ones. Which are compartments in the cytoplasm that
act as places for secretion, excretion, and storage.
17. Chromatin DNA is in this loosely structured form when it is not dividing
18. Chromosomes DNA is seen in condensed rod-shaped bodies when the cell is dividing
