CELL STRUCTURE

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Across:
1.	Network of membranous channels for transport of molecules within cells
4.	A reproductive cell that develops into an individual without first fusing with another reproductive cell. Those in the figure are produced by fungi, photographed at 1000x magnification
6.	Site of aerobic respiration and ATP production in eukaryotic cells
7.	The green organelle seen in these leaf mesophyll cells
8.	Extensions of the plasma membrane to increase surface area to volume ratio. Labelled Y in diagram.
9.	Fluid part of a cell containing dissolved molecules and organelles
10.	Organelle for protein synthesis; present in both prokaryotes and eukaryotes. Represented in diagram by dots on membranes in eukaryotic cell.
11.	Absent in prokaryotes; location of chromosomes in eukaryotes. The large structure in the diagram.
13.	Small membrane-bound sac carrying molecules to be secreted from cell, or taken into the cell
14.	Fluid-filled space in chloroplasts (B in diagram); site of Calvin Cycle reactions.
15.	Structure for motility or moving fluid across cell surface
16.	Fungal cell walls are made of this polysaccharide
17.	Endoplasmic reticulum with bound ribosomes; the membranous structures in the diagram.
19.	Plant cell walls are made of this polysaccharide
20.	Organelle filled with enzymes for destruction of molecules within a cell
21.	Process of converting light energy to chemical energy; occurs in the organelle seen in the micrograph
22.	Fluid part of a cell, outside the nucleus, containing organelles. Labelled Z in diagram.
23.	Nuclear structure for ribosome assembly.Densely stained region in diagram.

Down:
2.	Phospholipd bilayer defining the boundary of all cells
3.	Structure for motility in sperm and some protists and bacteria
5.	Molecule that makes cell membranes
9.	The structure indicated by "A"
12.	Membrane stacks in chloroplasts (A in diagram); location of chlorophyll molecules
13.	Structure in plant cells (A) for storage of water, solutes, pigments
18.	Stacks of membranous sacs for moving molecules; abundant in cells that export proteins

CELL STRUCTURE

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