| 1. tissue |
the
central, essential, or highly concentrated part around which other
parts are grouped. |
| 2. vacuole |
a
musical instrument consisting of a keyboard attached to a device
that forces air through a number of pipes to produce a wide range
of sounds; pipe organ. |
| 3. chromosome |
a
membranous enclosure within a cell that contains substances isolated
from the protoplasm, such as dissolved acids. |
| 4. chlorophyll
(chlorophyl) |
the
ground protoplasm of cells that is outside the nucleus. |
| 5. cell
membrane |
any
of the very tiny rodlike or stringlike structures that occur in
nearly all cells of plants and animals, and that process food for
energy. |
| 6. chloroplast |
a
small spherical body in the nucleus of a cell, consisting of protein
and RNA. |
| 7. cell
wall |
the
mass of like cells in an animal or plant body, esp. as they form
a specific organ: |
| 8. nucleolus |
one
of the tiny, threadlike, DNA-containing bodies found in the cell
nuclei of all plants and animals, responsible for transmitting hereditary
characteristics. |
| 9. organ |
the
green pigment in the leaves and stems of plants that is necessary
for the production of plant food by photosynthesis. |
| 10. cytoplasm |
the
rigid outermost layer of a plant cell, which is made of cellulose. |
| 11. nucleus |
a
small oval green bit of protoplasm that contains chlorophyll and
is the location of photosynthesis. |
| 12. mitochondrion |
the
semipermeable membrane that encloses the contents of a cell; plasma
membrane. |
