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Chapter 1: The Cell System

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DATE:  
25 points
Across
The final stage of the cell cycle, in which the cell's cytoplasm divides, distributing the organelles into each of the two new daughter cells.
The basic unit of structure and function in living things.
A tiny cell structure that carries out a specific function within the cell.
Rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions.
A sac-like organelle that stores water, food, and other materials.
A disease of mitosis.
A property of cell membranes to pass across it, while other cannot.
The process by which a cell makes a copy of the DNA in its nucleus before cell division.
Last phase of mitosis. Chromatids are pulled to opposite ends of the cell, nuclear envelope reforms, and each nucleus contains an identical copy of DNA.
Third phase of mitosis. Fibers connected to the centrioles pull the chromatids apart into each side of the cell.
The process by which the vacuole surrounding particles fuses with the cell membrane, forcing the contents out of the cell.
An instrument that makes small objects look larger.
The process by which molecules move from an area of higher concentration to an area of lower concentration.
Down
An organelle in the cells of plants and some other organisms that captures energy from sunlight and changes it to an energy form that cells can use in making food.
A thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell.
First phase in mitosis. DNA condenses and nuclear envelope begins to break down.
The series of events in which a cell grows, prepares for division, and divides to form two daughter cells.
A rigid supporting layer that surrounds the cells of plants and some other organisms.
The second stage of the cell cycle, during which the cell's nucleus divides into two new nuclei and one set of DNA is distributed into each daughter cell.
The first stage of the cell cycle that takes place before cell division occurs, during which a cell grows and makes a copy of its DNA.
A widely accepted explanation of the relationship between cells and living things.
In cells, a large oval organelle that contains the cell's genetic material in the form of DNA and controls many of the cell's activities.
The process by which the cell membrane takes particles into the cell by changing shape and engulfing the particles.
Second phase in mitosis. Chromosomes line up along the center of the cell.
The diffusion of water molecules across a selectively permeable membrane.