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Science Test #2

Across
An instrument that makes small objects look larger.
A rigid supporting layer that surrounds the cells of plants and some other organisms.
The basic unit of structure and function in living things.
An organism that cannot make its own food and gets food by consuming other living things.
A sac-like organelle that stores water, food, and other materials.
A property of cell membranes that allows some substances to pass across it, while others cannot.
The process by which cells release energy by breaking down food molecules without using oxygen.
convert energy stored in food to energy the cell can use to live and function. They are the "powerhouses" of the cell.
The process by which plants and other autotrophs capture and use light energy to make food from carbon dioxide and water.
An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food.
Down
A thin, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell.
A green photosynthetic pigment found in the chloroplasts of plants ,algae, and some bacteria.
The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells, releasing energy.
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 widely accepted explanation of the relationship between cells and living things.
A tiny cell structure that carries out a specific function within the cell.
The thick fluid region of a cell located inside the cell membrane (in prokaryotes) or between the cell membrane and nucleus (in eukaryotes).
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 diffusion of water molecules across a selectively permeable membrane.
The process by which molecules move from an area of higher concentration to an area of lower concentration.