Brittany Stogner-Cell Flash Cards

Front 1

Cell

Back 1

the basic unit of structure and function in living organisms.

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Organelles

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structures inside cells that perform specific jobs for the cell.

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Cell Membrane

Back 3

a selectively permeable envelope that surrounds the cell.

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Eukaryotes

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are organisms whose cells contain a membrane-bound nucleus and other organelles.

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Prokaryotes

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are unicellular organisms like some bacteria that lack a membrane bound nucleus and organelles.

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Nucleus

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is the large organille near the center of the cell that directs most of the cell's activities and contains the genetic code of the cell.

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Selectively Permeable

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means that some substances can pass through while others can not.

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Cytoplasm

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is the gelatin-like watery substance inside the cell.

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Mitochondria

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are the sites of chemical reactions that transfer energy from organic compounds to ATP

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Ribosomes

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are organelles that synthesize protiens and RNA

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Endoplasmic Reticulum

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is a system of tubules and sacs where molecules move from one part of the cell to another.

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Rough E.R

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is covered with ribosomes.

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Smooth E.R

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is not covered with ribosomes.

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Golgi Apparatus

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is the processing, packaging, and secreting organelle of the cell.

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Lysosomes

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are organelles that digest substances such as protiens, old cell organelles, viruses, and bacteria

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Cytoskeleton

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is a network of long protien strands that provide support.

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Microtubules

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are the largest protien strands in the cytoplasm.

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Microfilaments

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are the smallest strands in the cytoskeleton.

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Spindle Fibers

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are bundles of microtubules that appear during cell division.

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Nucleolus

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is inside the nucleus and is the site where ribosomes are synthesized and partially assembled.

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Nuclear Matrix

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is the protien skeleton of the nucleus.

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Nuclear Envelope

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is a double membrane that surrounds the nucleus.

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Chromatin

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is fine strands of protien and DNA.

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Chromosomes

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for when chromatin strands coil up and pack closer.

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Nuclear Pores

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are small openings in the nuclear envelope.