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Cell Structure and Function

Name:________________________
Class: ___________ Date: ________
Across
Cells that enclose their DNA in nuclei are _______.
The ______ electron microscope produces three dimensional images of the specimens surface.
Most of the time, the threadlike chromosomes are spread throughout the nucleus in the form of ______.
During _____ particles move from an area where they are more concentrated to an area where they are less concentrated.
_____ is the diffusion of water through a selectively permeable membrane.
Organelle found in cells of plants and some other organisms that captures the energy from sunlight and converts it into chemical energy
Small organelle that are filled with enzymes that break down molecules and old organelles.
If a cell is in a hypotonic solution, it will _______.
_____ convert the chemical energy in food into compound that are more convenient for the cell to use.
The cytoskeleton is involved in _______.
_____ are cells that do not enclose DNA in nuclei.
The cell membrane is made of a lipid _____.,
Specialized structure that performs important functions within a cell.
The endoplasmic _______ is where lipids components of the cell membrane are assembled, along with proteins and other materials that are exported from the cell.
Movement of materials against a concentration gradient is known as ______ transport, it requires energy.
The _____ apparatus modifies, sorts and packages proteins and other materials.
The organisms we call ______ are prokaryotes.
In many plant cells, there is a single ____ central vacuole filled with liquid.
The cell ____ is a thin flexible barrier that surrounds all cells and regulates what enters and leaves the cell.
Down
The _____ skeleton is a network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization.
In animal cells, organelles called _____ help organize cell division.
____ store materials like water, salt, protein and carbohydrates.
The ______ is a large membrane-enclosed structure that contains genetic material.
The _____ is where the assembly of ribosomes begins.
Active transport of small molecules is carried out by transport _______.
The fatty acid portion of the lipid are ______ or water hating.
Proteins are assembled on ______.
The green pigment needed for photosynthesis.
When comparing two solutions, the solution with the greater concentration of solutes is called _______.
Microtubules build projections from the cells surface known as ____ and flagella that enable cells to swim rapidly through a liquid.
Strong supporting layer around the cell membrane in some cells.
The DNA has coded instructions for making _____ and other important molecules.
The cell membranes are selectively ______, meaning some substances can pass across them and others cannot.
Endoplasmic reticulum involved in synthesis of protein is called ______ ER because of the ribosomes found on its surface.