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Cells

Across
Brain of the cell.
This organelle contains digestive enzymes.
"Little organ." Each one performs a specific function so as to keep the cell alive.
A very small particle found in large numbers in a cell. They link amino acids together to form a specific protein.
A particular fat molecule, which has a shape like a ball with two legs.
Particles move from high concentration to lower concentration.
Plants have a layer of cellulose outside the membrane.
Only plants have this organelle. It contains chlorophyll and converts sunlight into sugars which store energy for the cell.
Organelle found in large numbers in most cells. It has a double membrane, and its main function is to produce energy for the cell. It's like a power plant.
...reticulum. The abbreviation often used is "ER," where the "E" stands for this word. It is a network of tubules.
Cells which have a nucleus (membrane enclosed) and other organelles which have a membrane, such as chloroplasts or mitochondria.
A living thing composed of just one cell, such as bacteria.
Down
A jelly-like material which makes up most of the inside of a cell, consisting mainly of water and salt.
The center of a nucleus which manufactures ribosomes.
The diffusion of water through a membrane. Water is what moves, not particles.
Thin covering that forms the outer boundary of a cell.
Animals have small ones, but plants have very large ones. They store nutrients and waste, as well as water.
A unicellular organism which lacks all membrane-enclosed organelles, such as a nucleus or mitochondria. Only bacteria fit the bill here.
...apparatus or G... body. It processes macromolecules from ribosomes to form proteins and lipids
A macromolecule (very large molecule) which is composed of carbon, hydrogen and oxygen, such as sugar and starch.