Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
An organelle with a double membrane that is the site of oxidative phosphorylation. ____ breaks down simple sugars to produce most of the ATP needed by eukaryotic cells.
3.
An organelle found in plants and algae that is the primary site of photosynthesis.
6.
(____ reticulum) An organelle composed of many interconnected membrane sacs and tubes; the major site of protein and lipid synthesis in eukaryotic cells.
9.
(____ cell) A type of animal cell that forms the outer surface of the skin and lines the lungs and guts.
12.
(____ membrane) The phospholipid bilayer that surrounds the cell.
13.
(____ cell) A type of animal cell that connects and supports other cells in the body. Many ____ cells secrete a matrix of nonliving material.
14.
The organelle in a eukaryotic cell that contains the genetic blueprint in the form of DNA.
15.
The contents of the cell enclosed by the plasma membrane, but, in eukaryotes, excluding the nucleus.
16.
A particle composed of proteins and RNA at which new proteins are synthesized. ____s can be either attached to the endoplasmic reticulum or free in the cytosol.
17.
A single-celled or multicellular organism in which each cell has a distinct nucleus and cytoplasm.
18.
(____ cell) A type of animal cell that is highly specialized for transmitting action potentials from one part of the body to another. Also called neuron.
Down:
2.
A complex network of protein filaments found in the cytosol of eukaryotic cells. The ____ maintains cell shape and is necessary for the physical processes of cell division and movement.
3.
The smallest self-contained unit of life, enclosed by a membrane.
4.
A collection of coordinated and specialized cells that together fulfill a particular function for the body. Animals have four basic ____ types, corresponding to the four basic cell types: connective ____, epithelial ____, muscle ____, and nerve ____.
5.
A large water-filled vesicle found in plant cells. ____s help maintain the shape of plant cells and can also be used to store food molecules.
7.
A self-contained collection of tissues, usually of a characteristic size and shape, that is organized for a particular function.
8.
(____ cell) A type of animal cell that can contract and plays a central role in the ability of animals to move.
10.
A single-celled organism that does not have a nucleus. All ____s are members of the kingdoms Bacteria or Archaea.
11.
The passive movement of a molecule from areas of high concentration of that molecule to areas of low concentration of that molecule.