NLN-PAX Science
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
4. Semipermeable refers to the selective nature of the plasma membrane.
membrane It contains pores and 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, neurotransmitters, and salts.
6. Cytoplasm is the fluid matrix found between the plasma membrane
and the nucleus that acts as scaffolding for the
organelles.
membrane fluid (interstitial fluid)
, NLN-PAX Science
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
triphosphate) within itself.
10 . Ribosomes are the sites of protein synthesis in the cell
11. Endoplasmic Ribosomes are attached. Serves as a means for transport
reticulum (ER) within the cell and is made up of many channels. Rough
, NLN-PAX Science
endoplasmic reticulum named for the fact that it has ri-
bosomes 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 Only plant cells have them. It is responsible for the protection of
the cell, the maintenance of the shape, and water balance.
, NLN-PAX Science
15. Chloroplasts contain chlorophyll, which is necessary for photosynthe-
sis.
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
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
4. Semipermeable refers to the selective nature of the plasma membrane.
membrane It contains pores and 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, neurotransmitters, and salts.
6. Cytoplasm is the fluid matrix found between the plasma membrane
and the nucleus that acts as scaffolding for the
organelles.
membrane fluid (interstitial fluid)
, NLN-PAX Science
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
triphosphate) within itself.
10 . Ribosomes are the sites of protein synthesis in the cell
11. Endoplasmic Ribosomes are attached. Serves as a means for transport
reticulum (ER) within the cell and is made up of many channels. Rough
, NLN-PAX Science
endoplasmic reticulum named for the fact that it has ri-
bosomes 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 Only plant cells have them. It is responsible for the protection of
the cell, the maintenance of the shape, and water balance.
, NLN-PAX Science
15. Chloroplasts contain chlorophyll, which is necessary for photosynthe-
sis.
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
