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Exploring Creation With Biology Flashcards

Cell Wall

A rigid substance on the outside of certain cells, usually plant and animal cells

Plasma Membrane

The semipermeable membrane between the cell contents and either the cell wall or the cells surroundings


A jellylike fluid inside the cell in which the organelles are suspended

Cytoplasmic Streaming

The motion of cytoplasm in a cell that results in coordinated movement of the cell's contents


The organelles in which nutrients are converted into energy


The organelle in animal cells responsible for hydrolysis reactions that break down proteins, polysaccharides, disaccharides, and some lipids


Non-membrane-bounded organelles responsible for proteins synthesis

Endoplasmic Reticulum

An organelle composed of an extensive network of folded membrane that performs several tasks within a cell

Rough ER

ER that is dotted with ribosomes

Smooth ER

ER that has no ribsomes


Organelles that store starches or oils


Organelles that contain pigments used in photosynthesis

Central Vacuole

A larger vacuole that rests at the center of most plant cells and is filled with a solution that contains a high concentration of solutes

Waste Vacuoles

Vacuoles that contain the waste products of digestion


The process by which a cell engulfs foreign substances or other cells

Phagocytic Vacuole

A vacuole that holds the matter which a cell engulfs

Pinocytic Vesicle

Vesicle formed at the plasma membrane to allow the absorption of large molecules

Secretion Vesicle

Vesicle that holds secretion products so that they can be transported to the plasma membrane and released

Golgi Bodies

The organelles where proteins and lipids are stored and then modified to suit the needs of the cell


Spiral strands of protein molecules that form a tubelike structure

Nuclear Membrane

A highly-porous membrane that separates the nucleus from the cytoplasm


Clusters of DNA,RNA, and proteins in the nucleus of a cell


A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement


Fine, threadlike proteins found in the cell's cytoskeleton

Intermediate Filaments

Threadlike proteins in the cell's cytoskeleton that are roughly twice as thick as microfilaments


A lipid in which one of the fatty acid molecules has been replaced by a molecule that contains a phosphate group

Passive Transport

Movement of molecules through the plasma membrane according to the dictates of osmosis or diffusion

Active Transport

Movement of molecules through the plasma membrane (typically opposite of osmosis or diffusion) aided by a process that requires energy

Isotonic Solution

A solution in which the concentration of solutes is essentially equal to that of the cell which resides in the solution

Hypertonic Solution

A solution in which the concentration of solutes is greater than that of the cell that resides in the solution


Collapse of a walled cell's cytoplasm due to the lack of water


The rupturing of a cell due to the excess internal pressure

Hypotonic Solution

A solution in which the concentration of solutes is less than that of the cell that resides in the solution

Activation Energy

Energy necessary to get a chemical reaction going

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